Search Results: "hawaii state flag meaning"

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03:26 Popular
5D Storage Will Preserve Human History For Eternity

715 views / 0 likes - added 8 years ago

Researchers have just discovered a way to preserve data forever in 5D. What exactly does that mean and how does it work? Our Brains Can Store 10x More Than We Thought! ►►►►http://bit.ly/1VCcV6B Sign Up For The TestTube Newsletter Here ►►►►http://bit.ly/1m
03:59 Popular
Volume Word Problems — Basic Example | Math | New SAT | Khan Academy

1,037 views / 0 likes - added 8 years ago

Watch Sal work through a basic Volume word problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-additional-topics-math/v/sat-math-s1-harder?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the previous
05:50
What Science Was Actually Done on the Moon? | Apollo

571 views / 0 likes - added 5 years ago

Apollo 14 conducted more scientific exploration of the Moon than any mission before it, and discoveries from the trip would eventually shape a new understanding of our celestial neighbor. Check out the entire Apollo series here!: https://bit.ly/2ApSfg9 Re
07:11
Lightning Struck Apollo 12... Twice, Here’s How Mission Control Reacted | Apollo

520 views / 0 likes - added 5 years ago

Like the astronauts, NASA’s mission control had to be ready to solve any problem, but during Apollo 12, the team was faced with a shocking scenario that no one expected. Check out the entire Apollo series here!: https://bit.ly/2ApSfg9 Read More: How Curio
02:38 Popular
Function Notation — Harder Example | Math | New SAT | Khan Academy

1,217 views / 0 likes - added 8 years ago

Watch Sal work through a harder Function notation problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-problem-solving-data-analysis/v/sat-math-q1-easier?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Misse
06:44
The Subatomic Challenge Behind Synthesizing the Color Blue

413 views / 0 likes - added 4 years ago

Turns out, blue is not only a color that's rare in nature, but it's almost impossible to recreate. In order to do so, you need to dive into the physics of color. Can Some People See More Colors Than You?https://youtu.be/MdBTMGRHk2gRead More: Blue Through
04:44 Popular
Relative clauses | Syntax | Khan Academy

752 views / 0 likes - added 6 years ago

A relative pronoun is a word like “that” or “which” or “who”, so a relative clause is a clause that begins with a relative pronoun. In the sentence “The dragon who breathed blue fire has retired,” “who breathed blue fire” is a relative clause. Learn more
03:58
The Null Hypothesis

563 views / 0 likes - added 6 years ago

While I was trying to read a script to a camera in zero-g, the student researchers behind me were trying to prove their own ideas -- or rather, to disprove their "null hypothesis". Let's talk about how science works -- and have a look at one of the teams
02:23
Isolating Quantities — Harder Example | Math | New SAT | Khan Academy

665 views / 0 likes - added 8 years ago

Watch Sal work through a harder Isolating quantities problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-passport-advanced-mathematics/v/sat-math-p13-easier?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT M
02:01 Popular
Isolating Quantities — Basic Example | Math | New SAT | Khan Academy

1,113 views / 0 likes - added 8 years ago

Watch Sal work through a basic Isolating quantities problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-passport-advanced-mathematics/v/sat-math-p14-harder?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Mi
02:26 Popular
Function Notation — Basic Example | Math | New SAT | Khan Academy

1,135 views / 0 likes - added 8 years ago

Watch Sal work through a basic Function notation problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-passport-advanced-mathematics/v/sat-math-p13-harder?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Misse
02:39 Popular
Operations With Polynomials — Harder Example | Math | New SAT | Khan Academy

1,452 views / 0 likes - added 8 years ago

Watch Sal work through a harder Operations with polynomials problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-passport-advanced-mathematics/v/sat-math-p11-easier?utm_source=YT&utm_medium=Desc&utm_campaign=N
02:57 Popular
Operations With Polynomials — Basic Example | Math | New SAT | Khan Academy

1,513 views / 0 likes - added 8 years ago

Watch Sal work through a basic Operations with polynomials problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-passport-advanced-mathematics/v/sat-math-p6-harder?utm_source=YT&utm_medium=Desc&utm_campaign=New
03:52
We’re One Step Closer to a Space Elevator

487 views / 0 likes - added 5 years ago

A space elevator sounds like science fiction, but scientists are still actively trying to make it a reality. Here’s what you need to know. Is This New Super Carbon Better Than Graphene? - https://youtu.be/FWENEXM5S3E Read More: Going up! Japan to test min
05:08
Neuromorphic Computing Is a Big Deal for A.I., But What Is It?

432 views / 0 likes - added 5 years ago

Engineering computers to work like brains could revolutionize technology as we know it. Here’s everything you need to know about neuromorphic computing. Get 20% off http://www.domain.com domain names and web hosting when you use coupon code SEEKER at chec
02:11 Popular
Ratios, Rates, And Proportions — Basic Example | Math | New SAT | Khan Academy

1,041 views / 0 likes - added 8 years ago

Watch Sal work through a basic Ratios, rates, and proportions problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-problem-solving-data-analysis/v/sat-math-q1-harder?utm_source=YT&utm_medium=Desc&utm_campaign=
07:22 Popular
Data Collection And Conclusions — Harder Example | Math | New SAT | Khan Academy

819 views / 0 likes - added 8 years ago

Watch Sal work through a harder Data collections and conclusions problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-additional-topics-math/v/sat-math-s1-easier?utm_source=YT&utm_medium=Desc&utm_campaign=NewS
05:00 Popular
What BMI doesn't tell you about your health

708 views / 0 likes - added 6 years ago

The way we define obesity is flawed. Read more about Body Mass Index's flaws on Vox.com: http://bit.ly/2nxeQ2U The body mass index, better known as BMI, is a measure of obesity that has been in use for over 200 years. It was a formula created by Belgian m
05:41 Popular
That versus which | The parts of speech | Grammar | Khan Academy

970 views / 0 likes - added 6 years ago

Much has been made of the distinction between "that" and "which" in English, but it can mostly be summed up in two points: 1. "That" doesn't work so well with commas. 2. "Which" doesn't work so well with people. David the Grammarian explains. Watch the ne
05:38
How Are Your Telomeres? They Could Be The Key to How Fast You're Aging

585 views / 0 likes - added 4 years ago

The length of telomeres may be the key to how fast we are aging, and they can be affected by our daily stresses. We can help build them back up, but first, what are telomeres?Do Presidents Age Faster Than The Rest Of Us?https://youtu.be/IH3d-qR25v4Read Mo
03:45 Popular
Angles, Arc Lengths, And Trig Functions — Harder Example | Math | New SAT | Khan Academy

1,021 views / 0 likes - added 8 years ago

Watch Sal work through a harder Angles, arc lengths, and trig functions problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-additional-topics-math/v/sat-math-s5-easier?utm_source=YT&utm_medium=Desc&utm_campai
03:52 Popular
Angles, Arc Lengths, And Trig Functions — Basic Example | Math | New SAT | Khan Academy

879 views / 0 likes - added 8 years ago

Watch Sal work through a basic Angles, arc lengths, and trig functions problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-additional-topics-math/v/sat-math-s4-harder?utm_source=YT&utm_medium=Desc&utm_campaig
02:58 Popular
Nonlinear Equation Graphs — Harder Example | Math | New SAT | Khan Academy

1,268 views / 0 likes - added 8 years ago

Watch Sal work through a harder Nonlinear equation graphs problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-passport-advanced-mathematics/v/sat-math-p8-easier?utm_source=YT&utm_medium=Desc&utm_campaign=NewS
02:01 Popular
Radicals And Rational Exponents — Basic Example | Math | New SAT | Khan Academy

1,504 views / 0 likes - added 8 years ago

Watch Sal work through a basic Radicals and rational exponents problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-passport-advanced-mathematics/v/sat-math-p3-harder?utm_source=YT&utm_medium=Desc&utm_campaign
02:22 Popular
Nonlinear Equation Graphs — Basic Example | Math | New SAT | Khan Academy

765 views / 0 likes - added 8 years ago

Watch Sal work through a basic Nonlinear equation graphs problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-passport-advanced-mathematics/v/sat-math-p12-harder?utm_source=YT&utm_medium=Desc&utm_campaign=NewS
01:15 Popular
Polynomial Factors And Graphs — Harder Example | Math | New SAT | Khan Academy

1,316 views / 0 likes - added 8 years ago

Watch Sal work through a harder Polynomial factors and graphs problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-passport-advanced-mathematics/v/sat-math-p12-easier?utm_source=YT&utm_medium=Desc&utm_campaign
01:36 Popular
Polynomial Factors And Graphs — Basic Example | Math | New SAT | Khan Academy

1,082 views / 0 likes - added 8 years ago

Watch Sal work through a basic Polynomial factors and graphs problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-passport-advanced-mathematics/v/sat-math-p11-harder?utm_source=YT&utm_medium=Desc&utm_campaign=
03:13 Popular
Interpreting Nonlinear Expressions — Harder Example | Math | New SAT | Khan Academy

834 views / 0 likes - added 8 years ago

Watch Sal work through a harder Interpreting nonlinear expressions problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-passport-advanced-mathematics/v/sat-math-p1-easier?utm_source=YT&utm_medium=Desc&utm_camp
05:55 Popular
Interpreting Nonlinear Expressions — Basic Example | Math | New SAT | Khan Academy

1,866 views / 1 likes - added 8 years ago

Watch Sal work through a basic Interpreting nonlinear expressions problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-passport-advanced-mathematics/v/sat-math-p10-harder?utm_source=YT&utm_medium=Desc&utm_camp
03:06 Popular
Operations With Rational Expressions — Harder Example | Math | New SAT | Khan Academy

1,320 views / 0 likes - added 8 years ago

Watch Sal work through a harder Operations with rational expressions problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-passport-advanced-mathematics/v/sat-math-p6-easier?utm_source=YT&utm_medium=Desc&utm_ca
03:22
Linear And Quadratic Systems — Harder Example | Math | New SAT | Khan Academy

665 views / 0 likes - added 8 years ago

Watch Sal work through a harder Linear and quadratic systems problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-passport-advanced-mathematics/v/sat-math-p4-easier?utm_source=YT&utm_medium=Desc&utm_campaign=N
04:50 Popular
Linear And Quadratic Systems — Basic Example | Math | New SAT | Khan Academy

816 views / 0 likes - added 8 years ago

Watch Sal work through a basic Linear and quadratic systems problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-passport-advanced-mathematics/v/sat-math-p8-harder?utm_source=YT&utm_medium=Desc&utm_campaign=Ne
04:34 Popular
Radical And Rational Equations — Harder Example | Math | New SAT | Khan Academy

1,086 views / 0 likes - added 8 years ago

Watch Sal work through a harder Radical and rational equations problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-passport-advanced-mathematics/v/sat-math-p9-easier?utm_source=YT&utm_medium=Desc&utm_campaign
01:22 Popular
Radical And Rational Equations — Basic Example | Math | New SAT | Khan Academy

880 views / 0 likes - added 8 years ago

Watch Sal work through a basic Radical and rational equations problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-passport-advanced-mathematics/v/sat-math-p7-harder?utm_source=YT&utm_medium=Desc&utm_campaign=
05:39 Popular
Solving Quadratic Equations — Harder Example | Math | New SAT | Khan Academy

844 views / 0 likes - added 8 years ago

Watch Sal work through a harder Solving quadratic equations problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-passport-advanced-mathematics/v/sat-math-p10-easier?utm_source=YT&utm_medium=Desc&utm_campaign=N
02:33 Popular
Radicals And Rational Exponents — Harder Example | Math | New SAT | Khan Academy

1,569 views / 0 likes - added 8 years ago

Watch Sal work through a harder Radicals and rational exponents problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-passport-advanced-mathematics/v/sat-math-p7-easier?utm_source=YT&utm_medium=Desc&utm_campaig
09:40 Popular
Quadratic And Exponential Word Problems — Harder Example | Math | New SAT | Khan Academy

1,023 views / 0 likes - added 8 years ago

Watch Sal work through a harder Quadratic and exponential word problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-passport-advanced-mathematics/v/sat-math-p2-easier?utm_source=YT&utm_medium=Desc&utm_campaign
03:30 Popular
Quadratic And Exponential Word Problems — Basic Example | Math | New SAT | Khan Academy

2,584 views / 0 likes - added 8 years ago

Watch Sal work through a basic Quadratic and exponential word problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-passport-advanced-mathematics/v/sat-math-p1-harder?utm_source=YT&utm_medium=Desc&utm_campaign=
03:42
The Crazy Plan to Deliver the First Baby in Space

513 views / 2 likes - added 5 years ago

A startup has announced plans to send a pregnant woman to space to give birth. Will this be the first baby born in space? Apollo Episode 1 - https://www.youtube.com/watch?v=2uyTgdzH7u4&index=2&list=PL6uC-XGZC7X6t9SWSCN0ETF6HWcxy6bVc Read More: Imagine Giv
05:57 Popular
Phrases and clauses | Syntax | Khan Academy

1,523 views / 0 likes - added 6 years ago

A phrase is any collection of words that behaves like a part of speech, like a noun phrase (“my brother Stu”), an adjectival phrase (“in a different shade of blue”), or an adverbial phrase (“with elegance and tact”). A clause is any noun phrase plus a ver
03:37 Popular
Scatterplots — Harder Example | Math | New SAT | Khan Academy

1,330 views / 0 likes - added 8 years ago

Watch Sal work through a harder Scatterplots problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-problem-solving-data-analysis/v/sat-math-q5-easier?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the
04:34 Popular
Scatterplots — Basic Example | Math | New SAT | Khan Academy

1,616 views / 0 likes - added 8 years ago

Watch Sal work through a basic Scatterplots problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-problem-solving-data-analysis/v/sat-math-q4-harder?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the
05:03 Popular
Units — Harder Example | Math | New SAT | Khan Academy

814 views / 0 likes - added 8 years ago

Watch Sal work through a harder Units problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-problem-solving-data-analysis/v/sat-math-q7-easier?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the previo
03:00 Popular
Units — Basic Example | Math | New SAT | Khan Academy

825 views / 0 likes - added 8 years ago

Watch Sal work through a basic Units problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-problem-solving-data-analysis/v/sat-math-q3-harder?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the previou
01:45 Popular
Percents — Harder Example | Math | New SAT | Khan Academy

764 views / 0 likes - added 8 years ago

Watch Sal work through a harder Percents problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-problem-solving-data-analysis/v/sat-math-q3-easier?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the pre
03:14 Popular
Percents — Basic Example | Math | New SAT | Khan Academy

714 views / 0 likes - added 8 years ago

Watch Sal work through a basic Percents problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-problem-solving-data-analysis/v/sat-math-q2-harder?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the prev
11:47 Popular
Bond enthalpy and enthalpy of reaction | Chemistry | Khan Academy

1,152 views / 0 likes - added 6 years ago

Introduction to bond enthalpy, and how to use bond enthalpies to calculate enthalpy of reaction. Watch the next lesson: https://www.khanacademy.org/science/chemistry/thermodynamics-chemistry/enthalpy-chemistry-sal/v/2015-ap-chemistry-free-response-7?utm_s
17:36
SPIKED by a Sea Urchin?

610 views / 1 likes - added 6 years ago

Please SUBSCRIBE - http://bit.ly/BWchannel Tour Tickets on Sale! - http://bit.ly/bravetickets Buy Coyote’s Book - http://bit.ly/BOOKbraveadventures Watch More - http://bit.ly/OLgoldticket On this episode of Beyond the Tide, Coyote and the crew go tide poo
07:02 Popular
Manipulating Quadratic And Exponential Expressions — Harder Example | Math | New SAT | Khan Academy

2,354 views / 0 likes - added 8 years ago

Watch Sal work through a harder Manipulating quadratic and exponential expressions problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-passport-advanced-mathematics/v/sat-math-p3-easier?utm_source=YT&utm_medi
03:42 Popular
Manipulating Quadratic And Exponential Expressions — Basic Example | Math | New SAT | Khan Academy

1,063 views / 0 likes - added 8 years ago

Watch Sal work through a basic Manipulating quadratic and exponential expressions problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-passport-advanced-mathematics/v/sat-math-p2-harder?utm_source=YT&utm_mediu
03:40
This Quantum ‘Sixth Sense’ Could Allow Birds to Navigate Earth’s Magnetic Field

462 views / 0 likes - added 5 years ago

How do migrating birds know where to go? New research suggests “spooky action at a distance” might be involved. We’ve Ignored Climate Change For More Than a Century - https://youtu.be/LKhGg0jDZTc Read More: Migratory birds eye-localized magnetoreception f
11:48
$250,000 for a High School Science Student

448 views / 0 likes - added 5 years ago

The story of three impressive high school science projects. Can you guess which student won $250,000 in the #RegeneronSTS? Applications open June 1: http://bit.ly/2HkLXT1 This video was sponsored by Regeneron. The Science Talent Search was founded and pro
06:13
Is life meaningless? And other absurd questions - Nina Medvinskaya

451 views / 0 likes - added 3 years ago

Dive into Albert Camus philosophy of the absurd, and explore the question: if the world is meaningless, could our lives still hold value? --Albert Camus grew up surrounded by violence. His homeland of Algeria was mired in conflict. He lost his father in W
06:13 Popular
Rate constant k from half-life example | Knetics | Chemistry | Khan Academy

932 views / 0 likes - added 6 years ago

Example problem showing how to find the rate constant k from the half-life of a first order reaction. Watch the next lesson: https://www.khanacademy.org/science/chemistry/chem-kinetics/copy-of-kinetics/v/second-order-reaction-with-calculus?utm_source=YT&u
04:52
We May Have Just Unlocked a Secret to How Life Started on Earth

458 views / 0 likes - added 5 years ago

Scientists have been trying to piece together the chemical recipe for how the building blocks of life originated. Now, they may have found it. A New Genetic Alphabet Is Creating Things Nature Has Never Seen - https://youtu.be/X3uHfRVjVVI Read More: Chemis
06:05
Could These Numbers Unravel New Dimensions in Space?

406 views / 1 likes - added 5 years ago

These multidimensional number systems are helping us explain the laws of nature. Here’s how. Can Hawking’s Black Hole Paradox Be Solved With Fuzzballs? - https://youtu.be/esPa1tVSjew Read More: The Peculiar Math That Could Underlie The Laws of Nature http
04:28 Popular
Data Inferences — Harder Example | Math | New SAT | Khan Academy

760 views / 1 likes - added 8 years ago

Watch Sal work through a harder Data inferences problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-problem-solving-data-analysis/v/sat-math-q9-easier?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed
03:32 Popular
Data Inferences — Basic Example | Math | New SAT | Khan Academy

1,400 views / 0 likes - added 8 years ago

Watch Sal work through a basic Data inferences problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-problem-solving-data-analysis/v/sat-math-q8-harder?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed t
02:01 Popular
Table Data — Harder Example | Math | New SAT | Khan Academy

857 views / 0 likes - added 8 years ago

Watch Sal work through a harder Table data problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-problem-solving-data-analysis/v/sat-math-q4-easier?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the p
01:22 Popular
Table Data — Basic Example | Math | New SAT | Khan Academy

1,038 views / 0 likes - added 8 years ago

Watch Sal work through a basic Table data problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-problem-solving-data-analysis/v/sat-math-q7-harder?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the pr
01:26
Introduction to verbs | The parts of speech | Grammar | Khan Academy

618 views / 0 likes - added 6 years ago

Let's explore what verbs are, and what they do! David, KA's Grammar Fellow, explains. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofspeech/grammar-verbs/e/identifying-verbs?utm_source=YT&utm_medium
13:51 Popular
Gilded Age Politics:Crash Course US History #26

797 views / 0 likes - added 9 years ago

You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Also, if you can afford to pay a little every month, it really helps keep the channel producing great conten
04:56
How Bad Are Rocket Launches for the Environment?

426 views / 0 likes - added 4 years ago

From Space-X to Blue Origin, rocket launches have increased tremendously over the past year. How do these numerous launches affect the environment? These Engineers Want to 3D Print an Entire Rocket in 60 Dayshttps://youtu.be/R5mhUm6NzqERead More: Why its
04:33 Popular
Coordinating conjunctions | The parts of speech | Grammar | Khan Academy

997 views / 0 likes - added 6 years ago

Coordinating conjunctions connect parts of sentences to each other. David explains how. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofspeech/conjunctions/e/meet-the-conjunction?utm_source=YT&utm_me
07:14 Popular
Calculating internal energy and work example | Chemistry | Khan Academy

1,095 views / 0 likes - added 6 years ago

Worked example calculating the change in internal energy for a gas using the first law of thermodynamics. Watch the next lesson: https://www.khanacademy.org/science/chemistry/thermodynamics-chemistry/internal-energy-sal/v/specific-heat-and-latent-leat-of-
03:53
Is Phosphorus the Reason We Haven’t Found Aliens Yet?

480 views / 1 likes - added 5 years ago

Extraterrestrial life in the universe might be rarer than scientists thought; here’s why. NASA’s Crazy Plan to Send a Space Submarine to Titan - https://youtu.be/UYusz-MIJ4c Read More: Paucity of phosphorus hints at precarious path for extraterrestrial li
07:50 Popular
pH and pKa relationship for buffers | Chemistry | Khan Academy

834 views / 0 likes - added 6 years ago

How the Henderson-Hasselbalch equation can be used to look at the ratio of conjugate acid and base using relationship between buffer pH and pKa. Watch the next lesson: https://www.khanacademy.org/science/chemistry/acid-base-equilibrium/buffer-solutions/v/
04:33 Popular
How To Trap Particles in a Particle Accelerator

726 views / 1 likes - added 7 years ago

In particle accelerators, beams of particles are focused and fired forward at almost the speed of light. But how are those particles controlled? With the help of two visual demonstrations, Suzie Sheehy explains. Answer our survey about this film and you c
04:22 Popular
Ratios, Rates, And Proportions — Harder Example | Math | New SAT | Khan Academy

938 views / 0 likes - added 8 years ago

Watch Sal work through a harder Ratios, rates, and proportions problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-problem-solving-data-analysis/v/sat-math-q2-easier?utm_source=YT&utm_medium=Desc&utm_campaign
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Linear And Exponential Growth — Harder Example | Math | New SAT | Khan Academy

870 views / 0 likes - added 8 years ago

Watch Sal work through a harder Linear and exponential growth problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-problem-solving-data-analysis/v/sat-math-q8-easier?utm_source=YT&utm_medium=Desc&utm_campaign=
02:28 Popular
Linear And Exponential Growth — Basic Example | Math | New SAT | Khan Academy

1,148 views / 0 likes - added 8 years ago

Watch Sal work through a basic Linear and exponential growth problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-problem-solving-data-analysis/v/sat-math-q6-harder?utm_source=YT&utm_medium=Desc&utm_campaign=N
03:27 Popular
Key Features Of Graphs — Harder Example | Math | New SAT | Khan Academy

749 views / 0 likes - added 8 years ago

Watch Sal work through a harder Key features of graphs problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-problem-solving-data-analysis/v/sat-math-q6-easier?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT
03:22 Popular
Key Features Of Graphs — Basic Example | Math | New SAT | Khan Academy

1,106 views / 0 likes - added 8 years ago

Watch Sal work through a basic Key features of graphs problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-problem-solving-data-analysis/v/sat-math-q5-harder?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT M
04:00 Popular
Data Collection And Conclusions — Basic Example | Math | New SAT | Khan Academy

2,504 views / 0 likes - added 8 years ago

Watch Sal work through a basic Data collections and conclusions problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-problem-solving-data-analysis/v/sat-math-q10-harder?utm_source=YT&utm_medium=Desc&utm_campai
03:14
We Can Now 3D Print in Suspended Gravity (And It’s Mesmerizing!)

475 views / 1 likes - added 6 years ago

Rapid liquid printing is faster and better than 3D printing, how does this sci-fi-like method work? Scientists Put the Brain of a Worm Into a Robot… and It MOVED - https://youtu.be/eYS7UIUM_SQ Read More: 3d Printing is Yesterday's News. Westworld-style Li
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Cellular Cannibalism May Have Led to the Evolution of Everything, Including Us

672 views / 0 likes - added 5 years ago

Millions of years ago, simple cells might’ve eaten each other to develop their own type of superpowers. Freaky. How Your Cells Decide Whether to Be Part of the Brain, or the Colon - https://youtu.be/W_Gpr8ZjqF4 Read More: The fuel of evolution: A new hypo
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Can We Really Have Stealth Helicopters When They’re So Loud?

551 views / 0 likes - added 5 years ago

Can helicopters be quiet as a mouse or is the technology so secret because it’s not real? and riding a helicopter is always going to be loud. Find out how this technology works and how close are we to the stealth helicopter reality. Why These Lasers Are T
02:16 Popular
Center, Spread, And Shape Of Distributions — Harder Example | Math | New SAT | Khan Academy

1,345 views / 0 likes - added 8 years ago

Watch Sal work through a harder Center, spread, and shape of distributions problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-problem-solving-data-analysis/v/sat-math-q10-easier?utm_source=YT&utm_medium=Desc
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How This Lab-Grown Patch Could Repair Your Heart

428 views / 0 likes - added 4 years ago

A heart attack can leave a heart permanently damaged. However, these new "beating" patches might be able to save the lives of those with damaged hearts. This 3D Bioprinted Organ Just Took Its First "Breath"https://youtu.be/V0rIP_u1JPQRead More: About Hear
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Meet the Comma | Punctuation | Grammar | Khan Academy

911 views / 1 likes - added 6 years ago

David and Paige introduce you to the superhero of the punctuation world: the comma! Practice this yourself on Khan Academy right now: . Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/punctuation/the-comma/
11:41 Popular
10 Fun Kiddy Riddles That Stump Most Adults

1,169 views / 0 likes - added 5 years ago

How to Boost Your Brain Quickly. Do you think you are smarter than other people and have exceptional logic? Test your brain and your analytical skills with our incredibly hard riddles. If you solve puzzles and riddles regularly, you’re giving your b
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Commas in dialogue | Punctuation | Grammar | Khan Academy

1,170 views / 1 likes - added 6 years ago

“Today we’re going to talk about using commas in dialogue,” said David and Paige, KA’s resident grammarians. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/punctuation/the-comma/e/commas-in-dialogue?utm_so
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Who versus whom | The parts of speech | Grammar | Khan Academy

597 views / 0 likes - added 6 years ago

When do you use who, and when do you use whom? David, KA's grammarian, explains. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofspeech/the-pronoun/e/relative-pronouns?utm_source=YT&utm_medium=Desc&u
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Appositives | Punctuation | Grammar | Khan Academy

632 views / 0 likes - added 6 years ago

David and Paige, KA’s resident grammarians, cover appositives and how to use commas along with them. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/punctuation/the-comma/e/appositives?utm_source=YT&utm_med
03:15
Personal pronouns | The parts of speech | Grammar | Khan Academy

654 views / 0 likes - added 6 years ago

Let's meet the personal pronouns! Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofspeech/the-pronoun/e/meet-the-personal-pronoun?utm_source=YT&utm_medium=Desc&utm_campaign=grammar Watch the next less
03:12 Popular
Correlative conjunctions | The parts of speech | Grammar | Khan Academy

1,015 views / 0 likes - added 6 years ago

Correlative conjunctions work in pairs to connect parts of sentences. David teaches you how they do it! Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofspeech/conjunctions/e/correlative-conjuntions?u
05:27 Popular
Subordinating conjunctions | The parts of speech | Grammar | Khan Academy

1,247 views / 0 likes - added 6 years ago

Subordinating conjunctions join two parts of complex sentences––independent clauses to dependent clauses. David explains how. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofspeech/conjunctions/e/coo
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The fish that walk on land - Noah R. Bressman

1,306 views / 3 likes - added 3 years ago

Explore the challenges facing amphibious fish when they leave water and the ingenious ways they survive on land. --We think of fish as completely aquatic animals. But there are actually hundreds of fish species that are amphibious, meaning that they posse
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04:12
This Alien Planet Hunter Is About to Retire, Now What?

464 views / 1 likes - added 5 years ago

Kepler is finally retiring after nine long years of searching for exoplanets. Let’s look back on its history and celebrate the little spacecraft that could. Should We Keep the Hubble Telescope Alive or Let It Crash and Burn? - https://youtu.be/T1uM6W0UqK4
10:03
The Hidden Algorithms That Power Your Everyday Life (Part 2 of 3)

486 views / 1 likes - added 5 years ago

From the routes we drive, to the price we pay for goods and services, to the videos we watch on YouTube, algorithms run our lives. But are they helping us? Part 1 of 3 - https://youtu.be/bEnHeER6Sww Part 3 of 3 - Coming soon! Read More: 'Breakthrough' alg
04:51 Popular
Do Elephants Really Never Forget? Here’s How Their Brains Are Different From Ours

725 views / 0 likes - added 5 years ago

Elephants have large brains and great memory, but what's exactly going on in that massive head of theirs? Here’s what we know. Catch the latest episode of Dodo Heroes on Saturday at 9pm EST on Animal Planet! You can also stream ALL episodes, available on
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Scientists Can Implant Fake Memories in the Brain, Here’s How

479 views / 1 likes - added 5 years ago

Scientists can now manipulate the memories inside the brains of mice! Here’s how this new discovery can change the way we look at our own brains. Typing vs. Handwriting: Which Is Better for Your Memory? - https://youtu.be/pu0PSZ_EwII Read More: Meet the T
06:32
Were already using AI more than we realize

59 views / 0 likes - added 3 months ago

How artificial intelligence hides in plain sight. Subscribe to our channel and turn on notifications () so you don't miss any videos: http://goo.gl/0bsAjOThis video is sponsored by Microsoft Copilot for Microsoft 365. Microsoft has no editorial influence
01:51
Punctuating a list | Punctuation | Grammar | Khan Academy

584 views / 0 likes - added 6 years ago

Learn how to use commas to punctuate a written list of people, things, actions, or events. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/punctuation/the-comma/e/punctuating-lists?utm_source=YT&utm_medium=
13:57 Popular
Where US Politics Came From: Crash Course US History #9

764 views / 0 likes - added 9 years ago

In which John Green teaches you where American politicians come from. In the beginning, soon after the US constitution was adopted, politics were pretty non-existent. George Washington was elected president with no opposition, everything was new and excit
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07:18 Popular
Origins Of Algebra | Introduction To Algebra | Algebra I | Khan Academy

1,208 views / 0 likes - added 8 years ago

Where did the word "Algebra" and its underlying ideas come from? Watch the next lesson: https://www.khanacademy.org/math/algebra/introduction-to-algebra/overview_hist_alg/v/abstract-ness?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraI Algebra I on Kha
02:53 Popular
The truly irregular verbs | The parts of speech | Grammar | Khan Academy

1,034 views / 0 likes - added 6 years ago

Some irregular verbs just won't be categorized. They don't fit into neat little boxes. These are those verbs. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofspeech/grammar-verbs/e/intro-to-irregular
03:10 Popular
The NFL Is Using The VICIS ZERO1 Football Helmet That Morphs On Impact To Reduce Head Injuries

715 views / 1 likes - added 6 years ago

This is not your typical football helmet. VICIS ZERO1 looks like a standard helmet on the outside. But when it hits something, it reacts much differently. Its innovative design is protecting football players' heads. Here's how it works. When hit, hard-sh
05:53
Comparing Q vs K example | Chemical equilibrium | Chemistry | Khan Academy

589 views / 0 likes - added 6 years ago

A worked example using reaction quotient Q to predict how concentrations will shift so the reaction can get to equilibrium. Watch the next lesson: https://www.khanacademy.org/science/chemistry/acids-and-bases-topic/acids-and-bases/v/arrhenius-definition-o
05:03 Popular
Indefinite Pronouns | The parts of speech | Grammar | Khan Academy

1,134 views / 0 likes - added 6 years ago

David, Khan Academy's Grammar Fellow, covers three nifty features of indefinite pronouns, which are pronouns that are just a little vague, y'know? Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofspee
06:35
Why are Buffalo Wings Called That?

665 views / 0 likes - added 6 years ago

Free monthly data with TunnelBear: http://tunnelbear.com/brainfood If you happen to like our videos and have a few bucks to spare to support our efforts, check out our Patreon page where we've got a variety of perks for our Patrons, including Simon's voic
15:06
Hydrogen Can Be a Metal?! Plus, Other Weird States of Matter (Part 2 of 3)

458 views / 0 likes - added 6 years ago

Solids, liquids, and gases are only the beginning. What are the other states of matter? Hint: There are more than you think. Part 1 of 3 - https://youtu.be/58C-gtX6uCY Part 3 of 3 - coming next Thursday! Read More: Matter: Definition & the Five States of
11:36
Something weird happens when you keep squeezing

101 views / 0 likes - added 7 months ago

Under extreme pressures, matter defies the rules of physics as we know it.Help keep Vox free for everybody: http://www.vox.com/give-now Subscribe to our channel and turn on notifications () so you don't miss any videos: http://goo.gl/0bsAjOPhysicists have
02:54 Popular
Helping verbs | The parts of speech | Grammar | Khan Academy

1,152 views / 0 likes - added 6 years ago

We've established that verbs can show actions and link ideas together. Now, let's talk about how some verbs can be used to help other verbs. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofspeech/gra
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These Metamaterials Go Beyond the Properties of Nature

320 views / 0 likes - added 5 years ago

These nanostructures have been engineered to interact with radiation in unnatural ways. Here’s how they’re making microscopic optical lenses, chip-sized synchrotrons, and so much more. These Liquid-Repelling Materials Defy Nature’s Design, Here’s How - ht
04:14
Do You Love Swimming Pools in Summer? Let Us Ruin That for You

653 views / 3 likes - added 5 years ago

You may think a dip in the pool is good, clean fun, but here’s what’s actually lurking in those chlorinated waters. Your Gut Microbes Are Controlling Your Mind, Here’s What You’ll Do For Them - https://youtu.be/0raVj1BA7iU Read More: What lies beneath: th
03:46
I Spent 9 Months In Space

505 views / 0 likes - added 6 years ago

Astronaut Peggy Whitson returns to Earth after 665 days in space Check out more awesome videos at BuzzFeedVideo! https://bit.ly/YTbuzzfeedvideo https://bit.ly/YTbuzzfeedblue1 https://bit.ly/YTbuzzfeedviolet GET MORE BUZZFEED: https://www.buzzfeed.com http
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What Drugs Do You Need to Survive in Space?

385 views / 0 likes - added 5 years ago

Traveling through space is rough on an astronaut’s body. What drugs do they take to cope? How One of NASA’s Deep Space Challenges Could Be Solved in the Ocean | The Swim - https://youtu.be/ogpE0mem9xE Read More: Preventing Bone Loss in Space Flight with P
03:48
Ion-Powered Rockets Could Take Us to Distant Planets in a Fraction of the Time

549 views / 0 likes - added 5 years ago

Chemical rockets got us to the moon, but we'll need something with a little more oomph to catapult us into deep space. Here are our options so far. How NASA Engineers Use Origami to Design Future Spacecraft - https://youtu.be/Ly3hMBD4h5E Read More NASA -
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Will Supercomputers Create Virtual Maps of Your Body in the Future?

450 views / 0 likes - added 5 years ago

Dr. Larry Smarr has been collecting 3D visualizations and detailed data on his body for almost a decade, amassing it all into a VR medical avatar of himself fondly known as "Transparent Larry." What could this mean for the future of personalized medicine?
03:52 Popular
Science For Kids - Jumping Candle Flame Experiment - ExpeRimental #13

769 views / 0 likes - added 8 years ago

Make a flame jump through the air in this fun science experiment to do at home with children. For info sheets and printable badges, click here: http://bit.ly/CandleChem ExpeRimental is a series of videos showing fun, cheap, simple science activities to do
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02:11
Perfect progressive aspect | The parts of speech | Grammar | Khan Academy

539 views / 0 likes - added 6 years ago

We use the perfect progressive aspect to talk about an action that was once ongoing, but has since completed, like "I had been waiting for twenty minutes." Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/pa
02:55 Popular
Emphatic pronouns | The parts of speech | Grammar | Khan Academy

893 views / 0 likes - added 6 years ago

Sometimes we use reflexive pronouns like "myself" and "ourselves" for emphasis in a sentence, like, "If you won't help me, then I'll do it myself!" KA's Grammar Fellow, David, explains this usage. Practice this yourself on Khan Academy right now: https://
03:56
What Will Continents Look Like in the Future?

671 views / 1 likes - added 5 years ago

It’s been 250 million years since the supercontinent Pangea, but the tectonic plates that formed it are still very much active. Could entire continents be splitting in half? The Earth’s Spin Is Slowing Down! What Happens If It Stops? - https://youtu.be/VS
05:27 Popular
Converting Directly From Binary To Hexadecimal | Pre-Algebra | Khan Academy

1,285 views / 0 likes - added 8 years ago

Watch the next lesson: https://www.khanacademy.org/math/pre-algebra/exponents-radicals/World-of-exponents/v/exponents-warmup?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Missed the previous lesson? https://www.khanacademy.org/math/pre-algebra/app
02:00 Popular
What is a pronoun? | The parts of speech | Grammar | Khan Academy

1,078 views / 0 likes - added 6 years ago

Pronouns are words that can replace nouns, like the way "it" replaces "elephant" in "I looked at the elephant. It was grey." Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofspeech/the-pronoun/e/the-q
04:45
The race to decode a mysterious language - Susan Lupack

297 views / 0 likes - added 3 years ago

Dig into the mysterious Linear B symbols, found on ancient tablets on the island of Crete, which took scholars nearly 50 years to decode.--In the early 1900s, archaeologist Sir Arthur Evans uncovered nearly 3,000 tablets inscribed with strange symbols. He
02:58
We Didn’t Think This Part of the Brain Existed, and It Could Save Your Life

647 views / 0 likes - added 5 years ago

Scientists recently discovered a never-before-seen drainage system in the brain! Here's how it could lead to exciting breakthroughs in the treatment of neurological diseases. Doctors Have to Trick Your Brain’s Defenses to Heal You, Here’s Why - https://yo
04:29
How Did Roboticists Get This Ancient Fossil To Walk?

369 views / 0 likes - added 5 years ago

Advanced computer tomography scans are changing the way paleontologists are studying ancient life and “OroBOT” may be just the beginning. How Did Science Get Neanderthals So Wrong? - https://youtu.be/VAaTaZqleeY Read More: Reverse Engineering the Locomoti
05:38 Popular
What Is Antimatter And Why Are We Searching For It?

706 views / 1 likes - added 8 years ago

Scientists have been looking for antimatter since the early 1920’s. Is antimatter real? Did Scientists Create A New State Of Matter? ►►►► http://dne.ws/21MDMS6 Sign Up For The TestTube Newsletter Here ►►►► http://dne.ws/1McUJdm Read More: Physicists Probe
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03:14
The irregular verb gets taken for a ride | Grammar | Khan Academy

591 views / 0 likes - added 6 years ago

This group of irregular verbs have vowel sounds that change in a predictable way, when they go from the present to the past tense. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofspeech/grammar-verbs
04:05
Are You Seasoning Your Food With Microplastics? (You Totally Are)

532 views / 0 likes - added 5 years ago

Plastic pollution has made its way from the ocean to your kitchen table. A recent study found salt grains now contain microplastics, but what does that mean for our bodies? How Seeker Will Collect The Most Extensive Data Set of the Pacific Ocean | The Swi
04:55
Which Countries Make the Most Plastic Waste?

619 views / 0 likes - added 5 years ago

China just put the brakes on buying up nearly half of the world’s exported plastics, but which country is really to blame for our plastic pollution? Here’s what we know. How Seeker Will Collect The Most Extensive Data Set of the Pacific Ocean | The Swim -
05:19 Popular
Disney Cars 3 Carrera battery operated slot race track with Lightning Mcqueen Dinoco Cruz Ramirez

1,406 views / 1 likes - added 6 years ago

Disney Cars 3 Carrerra battery operated slot race track with Lightning Mcqueen Dinoco Cruz Ramirez surprise toys family fun game challenge Evren Adventures ToysReview. Thanks for joining Evren and Evren' daddy to unbox Disney Cars 3 Carrera Batterry Opera
12:13 Popular
Diving with Sea Turtles!

951 views / 5 likes - added 6 years ago

Please SUBSCRIBE - http://bit.ly/BWchannel Tour Tickets on Sale! - http://bit.ly/bravetickets Buy Coyote’s Book - http://bit.ly/BOOKbraveadventures Watch More - http://bit.ly/OrcaWhaleTour On this episode of Beyond the Tide, Coyote and Mark go scuba divin
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How Close Are We to Zero-Emissions Electricity?

372 views / 0 likes - added 5 years ago

We know that tackling climate change will take quick and drastic action. Could modernizing our power grid be the key? How Close Are We? Season 3 - https://www.youtube.com/watch?v=Ypm4QcOOqXQ&list=PL6uC-XGZC7X56r8MGLS5rqsr5glQnMdAC Read More: The world has
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Progressive Aspect | The parts of speech | Grammar | Khan Academy

528 views / 0 likes - added 6 years ago

If verb tense allows you to control the past, the present, and the future, then aspect gives you even finer control over time. David, Khan Academy's resident grammarian, explains. Practice this yourself on Khan Academy right now: https://www.khanacademy.o
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Simple Aspect | The parts of speech | Grammar | Khan Academy

608 views / 0 likes - added 6 years ago

If verb tense allows you to control the past, the present, and the future, then aspect gives you even finer control over time. David, Khan Academy's resident grammarian, explains. Practice this yourself on Khan Academy right now: https://www.khanacademy.o
04:13 Popular
Could Increasing the Melanin In Your Skin Protect You From Cancer?

912 views / 0 likes - added 5 years ago

Researchers are looking into the effects of raising melanin levels in skin to prevent melanoma. Here’s what you need to know. Two-Thirds of All Cancers Are Caused by One Thing: Your DNA - https://youtu.be/ZZUk0gF_-T4 Read More: Mammalian pigmentation is r
05:10 Popular
Reflexive pronouns | The parts of speech | Grammar | Khan Academy

1,088 views / 0 likes - added 6 years ago

We use reflexive pronouns (like "herself" and "ourselves") when the subject and the object of a sentence are the same thing. David, KA's Grammar Fellow, explains. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/gra
03:32
What Happens When CRISPR Backfires?

401 views / 0 likes - added 5 years ago

CRISPR is touted as a gene editing technology to change the world, but recent studies show that it might actually be doing more harm than good. Your Body Could Be Immune to CRISPR! Is This the End of Gene Editing? - https://youtu.be/ow4b7eg2ibc Read More:
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Why a Half Degree Rise in Global Temperature Would Be Catastrophic

516 views / 0 likes - added 5 years ago

According to a new report, Earth is likely to reach 1.5°C warming by 2030. Here’s why that’s a big deal. How Much Heat Can Your Body Take Before Killing You? - https://youtu.be/t-o-4xXMoM8 Read More: IPCC: Global Warming of 1.5 °C http://www.ipcc.ch/repor
08:40
How Do Holograms Work? (Part 1 of 3)

461 views / 0 likes - added 5 years ago

Science-fiction is littered with holograms, and they’ve become a staple of anything set in the future. But, they’ve been around longer than you think. Part 2 of 3 - https://youtu.be/c8pL6vW9R0I Part 3 of 3 - Coming Soon! Read More: The History of Holograp
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Pronoun number | The parts of speech | Grammar | Khan Academy

874 views / 0 likes - added 6 years ago

The difference between something being singular or plural is what we call 'grammatical number' in English. Here's how that idea applies to pronouns! Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofsp
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Eating Dandelions | The Salt | NPR

489 views / 0 likes - added 5 years ago

Dandelions are much more than just unwanted weeds, according to expert forager and nutritionist Debbie Naha—they make a delicious (and nutritious) snack. Naha took us foraging for dandelions at Little Buffalo State Park in Newport, Pa. She advises to pick
08:30 Popular
Multiplying And Dividing Negative Numbers | Pre-Algebra | Khan Academy

1,841 views / 0 likes - added 8 years ago

Multiplying and dividing negative numbers Watch the next lesson: https://www.khanacademy.org/math/arithmetic/absolute-value/abs_value_tutorial/v/absolute-value-and-number-lines?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Missed the previous less
07:58 Popular
The Backwards Brain Bicycle - Smarter Every Day 133

769 views / 1 likes - added 8 years ago

Patreon Support Link: http://www.patreon.com/smartereveryday Free Audio Book ⇒ http://bit.ly/AudibleSED ⇐ (I really do love the Commander's book!) Tweet ⇒ http://bit.ly/BackwardsBike ⇐ Post to FB⇒ http://bit.ly/BackwardsBikeFB ↓↓↓↓↓↓↓READ MORE: ↓↓↓↓↓↓↓ He
03:38 Popular
Cockroaches Are Indestructible, And the Secret Is in Their Genome

971 views / 0 likes - added 5 years ago

The cockroach genome is fully sequenced! Here's how we could benefit from the secrets embedded in their unique DNA. There Are Bugs In Your Food! Here's Why You Shouldn't Panic - https://youtu.be/kyLmINv4Joo Read More: Newly Sequenced Cockroach Genome Expl
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A New Genetic Alphabet Is Creating Things Nature Has Never Seen

635 views / 0 likes - added 5 years ago

If you thought DNA was made of just A, T, G and C-- think again. Scientists have been expanding these options, and the resulting organisms could create the impossible. What Happens When CRISPR Backfires? - https://youtu.be/8b_d3RIJJmo Read More: Organisms
02:34 Popular
This Engineer's Crazy Plan to Clean Air with Smog-Sucking Bikes

753 views / 1 likes - added 6 years ago

These bicycles are designed to filter smog out of the air as you ride. This could be a game changer for smoggy cities like Beijing. This Is What Pollution Does To Your Body - https://youtu.be/_k22ejJ_fvc Sign Up For The Seeker Newsletter Here - http://bit
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07:43 Popular
Basic Addition | Addition And Subtraction | Arithmetic | Khan Academy

1,298 views / 1 likes - added 8 years ago

Introduction to addition. Multiple visual ways to represent addition. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/arithmetic/addition-subtraction/basic_addition/e/addition_1?utm_source=YT&utm_medium=Desc&ut
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Subject and object pronouns | The parts of speech | Grammar | Khan Academy

531 views / 0 likes - added 6 years ago

Before we get any further with pronouns, let's cover what the difference between a subject and an object pronoun is, because the distinction between those two concepts will start coming up a good deal. Practice this yourself on Khan Academy right now: htt
05:17
Here's Why Repairing the Hole in the Ozone Layer Is Delayed by a Decade

425 views / 0 likes - added 4 years ago

A mysterious spike in ozone destroying emissions, CFC-11, has finally been located to 2 provinces in China. But what is CFC-11 and what happens now?The Ozone Layer Was Doomed Until a Handful of Scientists Stood Up to Power - https://youtu.be/CvcvMkFGBi8Re
03:11 Popular
The vowel-shift irregular verb | The parts of speech | Grammar | Khan Academy

1,190 views / 0 likes - added 6 years ago

This group of irregular verbs have vowel sounds that change in a predictable way, when they go from the present to the past tense. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofspeech/grammar-verbs
09:17 Popular
Unit Conversion Within The Metric System | Pre-Algebra | Khan Academy

1,881 views / 0 likes - added 8 years ago

Metric unit conversion Watch the next lesson: https://www.khanacademy.org/math/pre-algebra/rates-and-ratios/metric-system-tutorial/v/converting-within-the-metric-system?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Missed the previous lesson? http
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Commas and introductory elements | Punctuation | Grammar | Khan Academy

531 views / 0 likes - added 6 years ago

In English, you use commas to separate introductory elements from the rest of a sentence. Find out how with David and Paige! Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/punctuation/the-comma/e/commas-an
06:11
India Could Be the First to Land on the Moons South Pole

368 views / 0 likes - added 4 years ago

The Indian Space Research Organization's Chandrayaan-1 was the first to discover water on the moon, and with the Chandrayaan-2, they could be the first to explore the surface on the Moon's south pole. These future discoveries could reveal the evolution of
09:48
How Close Are We to Building a Moon Base?

526 views / 0 likes - added 5 years ago

For decades, humans have fantasized about living on the moon, but we haven't sent anyone there since 1972. So, how close are we to a moon base? Apollo - https://www.youtube.com/watch?v=9wo1jasvnUg&list=PL6uC-XGZC7X6t9SWSCN0ETF6HWcxy6bVc How Close Are We?
04:53 Popular
Modal verbs | The parts of speech | Grammar | Khan Academy

1,472 views / 0 likes - added 6 years ago

There's a class of helper verbs known as modals that we use to express a bunch of conditions: we can use them to give advice, make guesses at how necessary or likely something is, make requests of people, and so on. They're super useful. Practice this you
02:15 Popular
An Asteroid Didn’t Kill the Dinosaurs, Here’s a New Theory About What Did

1,154 views / 2 likes - added 6 years ago

A new scientific model has discovered what actually happened to the earth after the asteroid impact that killed the dinosaurs. What Color Were Dinosaurs... Really? - https://youtu.be/zQPEiEluNgw Sign Up For The Seeker Newsletter Here - http://bit.ly/1UO1P
02:31
Perfect Aspect | The parts of speech | Grammar | Khan Academy

689 views / 0 likes - added 6 years ago

If verb tense allows you to control the past, the present, and the future, then aspect gives you even finer control over time. David, Khan Academy's resident grammarian, explains. Practice this yourself on Khan Academy right now: https://www.khanacademy.o
04:39 Popular
Grammatical person and pronouns | The parts of speech | Grammar | Khan Academy

874 views / 0 likes - added 6 years ago

There's this idea in grammar called grammatical person that helps describe who's being talked about in a sentence. David, KA's Grammar Fellow, explains. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/parts
03:54
Could Black Holes Made Of Light Power Our Spaceships?

443 views / 0 likes - added 5 years ago

What exactly would it take to create our very own Swartzchild Kugelblitz? Could a Dyson Sphere Harness the Full Power of the Sun? - https://youtu.be/jOHMQbffrt4 Read More: Kugelblitz! Powering a Starship With a Black Hole https://www.space.com/24306-inter
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Insect Flight | Capturing Takeoff & Flying at 3,200 FPS

301 views / 0 likes - added 3 years ago

Takeoff and flight sequences of insects spanning 8 different taxonomic orders captured at 3,200 fps!00:00 - intro01:17 - plume moth01:20 - firefly02:32 - painted lichen moth03:14 - leafroller moth03:31 - rosy maple moth04:00 - stonefly (see comment for co
02:48 Popular
Adding In Binary | Applying Mathematical Reasoning | Pre-Algebra | Khan Academy

1,037 views / 0 likes - added 8 years ago

Watch the next lesson: https://www.khanacademy.org/math/pre-algebra/applying-math-reasoning-topic/alternate-number-bases/v/binary-multiplication?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Missed the previous lesson? https://www.khanacademy.org/
06:22 Popular
HOT WHEELS MONSTER JAM Truck Tour Favourites Pirate Takedown Toy Cars for Kids Disney Egg Surprise

1,177 views / 2 likes - added 6 years ago

HOT WHEELS MONSTER JAM Truck Tour Favourites Pirate Takedown Toy Cars for Kids Disney Egg Surprise Toy. This playset comes with a 1:64 scale Captain's Curse Monster Jam Truck and it's such an awesome fun toy car for kids. The Monster Jam arena has been ra
01:50
Introduction to verb aspect | The parts of speech | Grammar | Khan Academy

575 views / 0 likes - added 6 years ago

If verb tense allows you to control the past, the present, and the future, then aspect gives you even finer control over time. David, Khan Academy's resident grammarian, explains. Practice this yourself on Khan Academy right now: https://www.khanacademy.o
04:13
Why Metallic Hydrogen Is the Holy Grail of High Pressure Physics

408 views / 0 likes - added 5 years ago

Making hydrogen a metal takes lot of pressure. But after a group of scientist’s lost the world’s first sample, the pressure is really on. Is Jupiter the Reason for Life on Earth? - https://youtu.be/nsGRvnPL95I Read More: Settling Arguments About Hydrogen
05:23
How Satellites Track Your Exact Location

621 views / 1 likes - added 8 years ago

GPS has become a staple on any smartphone, but how does it work? How Does Your Brain’s GPS Work? ►►►► http://dne.ws/1XfwdhD Sign Up For The TestTube Newsletter Here ►►►► http://dne.ws/1McUJdm Read More: How GPS Receivers Work http://electronics.howstuffwo
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07:34 Popular
Hexadecimal Number System | Applying Mathematical Reasoning | Pre-Algebra | Khan Academy

1,100 views / 0 likes - added 8 years ago

Watch the next lesson: https://www.khanacademy.org/math/pre-algebra/applying-math-reasoning-topic/alternate-number-bases/v/decimal-to-binary?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Missed the previous lesson? https://www.khanacademy.org/math
03:00 Popular
Inverse Property Of Addition | Arithmetic Properties | Pre-Algebra | Khan Academy

1,790 views / 0 likes - added 8 years ago

The simple idea that a number plus its negative is 0 Watch the next lesson: https://www.khanacademy.org/math/pre-algebra/order-of-operations/arithmetic_properties/v/inverse-property-of-multiplication?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra M
10:00
Introduction To Number Systems And Binary | Pre-Algebra | Khan Academy

615 views / 0 likes - added 8 years ago

Watch the next lesson: https://www.khanacademy.org/math/pre-algebra/applying-math-reasoning-topic/alternate-number-bases/v/hexadecimal-number-system?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Missed the previous lesson? https://www.khanacademy.
06:36
These photos ended child labor in the US

474 views / 1 likes - added 4 years ago

Child labor was widely practiced until a photographer showed the public what it looked like.This video is presented by CuriosityStream: https://www.curiositystream.com/VoxBecome a Video Lab member! http://bit.ly/video-labThe 1900 US Federal Census reveale
07:33 Popular
Ways to get a buffer solution | Chemistry | Khan Academy

1,260 views / 0 likes - added 6 years ago

Describes the two main situations where you get a buffer: making a buffer for a specific pH by combining a weak acid and a salt containing the conjugate base, and using a neutralization reaction by combining a weak acid and a strong base. Watch the next l
01:46 Popular
Introduction to verb tense | The parts of speech | Grammar | Khan Academy

811 views / 0 likes - added 6 years ago

An understanding of verb tense will make you into a TIME WIZARD, with the ability to control the past, the present, and the future – with your words, anyway. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/
09:03 Popular
Garbage Plates: Rochester's Best-Kept Secret || Food/Groups Empire Plate of Mind

738 views / 1 likes - added 6 years ago

People are shocked to hear that Rochester, a one-time boomtown on the southern shore of Lake Ontario, is actually the third-biggest city in the Empire State. It might not have New York City’s international cachet, or Buffalo’s diehard sports t
10:50
Why We Don't Have Real Holograms Yet (Part 2 of 3)

545 views / 0 likes - added 5 years ago

There are holograms on currency, credit cards, CD cases and more-- but they’re not the same as ones we see in movies. Where are the life-sized holograms? Part 1 of 3 - https://youtu.be/oh4VtPBofAg Part 3 of 3 - Coming Soon! Read More: How can you store a
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How Smart Are Animals? Our Tests May All Be Wrong…

497 views / 1 likes - added 6 years ago

The way animals think and communicate is a mystery, but science is working on changing that. Here’s what we know so far. After a Decade of Colony Collapse, Bees Are Bouncing Back! (Sort Of) - https://youtu.be/n9NQ9o7UWT4 Read More: Sheep are able to recog
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These Lost Apollo Tapes Reveal How Astronauts Changed the Moon

598 views / 0 likes - added 5 years ago

For years, scientists have been trying to explain a mysterious rise in lunar temperature. Now, thanks to recovered tapes from the Apollo missions, we finally have an answer. We Could Live in Caves on the Moon, Here’s Everything You Need to Know - https://
03:43 Popular
Converting From Decimal To Hexadecimal Representation | Pre-Algebra | Khan Academy

1,435 views / 0 likes - added 8 years ago

Watch the next lesson: https://www.khanacademy.org/math/pre-algebra/applying-math-reasoning-topic/alternate-number-bases/v/binary-addition?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Missed the previous lesson? https://www.khanacademy.org/math/p
04:08
Are We Getting Closer to Thorium Nuclear Fuel?

591 views / 0 likes - added 5 years ago

Thorium is an alternative fuel that promises to produce safer, cleaner and more efficient nuclear power...if harnessed correctly. How This Rare Natural Fission Reactor Could Solve Our Nuclear Waste Problem - https://bit.ly/2qswoz3 Read More: A look back a
03:52 Popular
Converting From Decimal To Binary | Applying Mathematical Reasoning | Pre-Algebra | Khan Academy

1,519 views / 0 likes - added 8 years ago

Watch the next lesson: https://www.khanacademy.org/math/pre-algebra/applying-math-reasoning-topic/alternate-number-bases/v/large-number-decimal-to-binary?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Missed the previous lesson? https://www.khanaca
03:07
Goodbye Silicon! Your Next Computer Chip Could Be Made of Gallium Oxide

605 views / 0 likes - added 5 years ago

A new material may be coming for 'Silicon Valley' as researchers are looking towards gallium oxide to produce faster computer chips than ever before. Moore's Law Is Ending... So, What's Next? - https://youtu.be/Vv_2C95cO6s Read More: The dawn of gallium o
03:58
The 'duck curve' is solar energy's greatest challenge

486 views / 0 likes - added 6 years ago

Renewables require change in the energy supply chain. Subscribe to our channel! http://goo.gl/0bsAjO Electricity is incredibly difficult to store, so grid operators have to generate it at the exact moment it is demanded. In order to do this, they create i
05:10 Popular
No Human Has Ever Left Earth’s Atmosphere, Here's Why

1,308 views / 0 likes - added 5 years ago

New observations of our atmosphere calculate that it extends far beyond what we thought, encompassing the moon! This means that we've actually never left Earth's atmosphere. Here's what else these observations can tell us. A Dead Satellite Is Unlocking Th
07:20
How Did NASA Engineer a Car for the Moon? | Apollo

668 views / 1 likes - added 5 years ago

NASA’s first car to drive on the Moon revolutionized space exploration, giving astronauts the ability to travel farther than ever before. Check out the entire Apollo series here!: https://bit.ly/2ApSfg9 Read More: The Lunar Rover was Almost as Badass as t
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What Does It Sound Like When Black Holes Smash Into Each Other?

525 views / 2 likes - added 5 years ago

Scientists are using a $4 million supercomputer to listen to black holes colliding, and its helping us understand the beginning of our universe. Black Holes And Gravitational Waves Might Help Us Find Dark Matter - https://youtu.be/C68b9EGksuI Read More: T
12:35 Popular
Why The Big Bang Definitely Happened | Space Time | PBS Digital Studios

847 views / 1 likes - added 8 years ago

How physics lets us rewind time to the beginning of the universe. Get your own Space Time t-shirt at http://bit.ly/1QlzoBi Tweet at us! @pbsspacetime Facebook: facebook.com/pbsspacetime Email us! pbsspacetime [at] gmail [dot] com Comment on Reddit: http:/
03:50
What Do Artificial Sweeteners Actually Do to Your Body?

579 views / 0 likes - added 5 years ago

Before you put zero-calorie sweeteners in your coffee, find out how these sugar alternatives are actually harming your health. Your Gut Microbes Are Controlling Your Mind, Here’s What You’ll Do For Them - https://youtu.be/0raVj1BA7iU Read More: Artificial
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We’re Going to Detect More Gravitational Waves Than Ever Before, Here’s How

363 views / 0 likes - added 5 years ago

Once this $35 million upgrade is in place, LIGO will start using something called quantum "squeezed light." So, what does that mean exactly? LIGO's Gravitational Wave Discovery Is Still In Question, But Why? - https://youtu.be/aQ1entvy7vI Read More: Gravi
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What If You Are Stressed Everyday?

384 views / 0 likes - added 5 years ago

Can everyday stress literally kill you? Find out! Listen to Sidenote for our episode on stress: https://www.youtube.com/watch?v=GU_eTlUwsY8 Created by: Mitchell Moffit and Gregory Brown Written by: Jodre Datu, Rachel Salt, Greg Brown Illustrated by: Max S
06:49
This Is How the Apollo Program Began

389 views / 0 likes - added 5 years ago

During World War II, German scientists created the first missile capable of reaching space, and it became the catalyst for humanity's venture into the unknown. To celebrate NASA’s 60th birthday, starting October 20th, Seeker is going back in time to reliv
03:13
What If You Go To Sleep Hungry? - Dear Blocko #23

541 views / 0 likes - added 4 years ago

It's Dear Blocko episode 23! Happy Holidays! :)Watch more: What If You Only Ate Candy? https://www.youtube.com/watch?v=EGev7AKJNwcResources:https://www.actionagainsthunger.org/Find your local food bank: https://www.feedingamerica.org/Meet The Team!Directo
03:59
How Your Heart Actually Controls Your Emotions

569 views / 1 likes - added 7 years ago

It turns out that your heart does a lot more than just pump blood. Check out this video to see how it can actually affect your emotions. Do Gut Feelings Actually Exist? - https://youtu.be/DBQYSwhIYXk Sign Up For The Seeker Newsletter Here - http://bit.ly/
03:20
China's New Surveillance Tech Monitors Workers’ Brainwaves

474 views / 0 likes - added 6 years ago

Is the dystopian future already here? Delve into some of China’s emotional surveillance and citizenship assessment technologies and find out whether Black Mirror is coming true. A.I. Is Monitoring You Right Now and Here's How It's Using Your Data - https:
12:03
Homemade Cream Puffs St. Joseph's Day - Zeppole di San Giuseppe

225 views / 0 likes - added 3 years ago

The first 1000 people to click the link will get a free trial of Skillshare Premium Membership: https://skl.sh/emmymadeinjapan01211 Zeppole di San Giuseppe are pastry cream-filled cream puffs eaten March 19th for St. Joseph's Day. Originally from Italy, #
06:15 Popular
The Crazy Things Astronauts Did to Survive the First Moon Landing | Apollo

737 views / 1 likes - added 5 years ago

NASA’s first astronauts were pushed to dangerous and deadly extremes while training to survive on the Moon. Check out the entire Apollo series here!: https://bit.ly/2ApSfg9 Read More: Apollo 11's Scariest Moments: Perils of the 1st Manned Moon Landing htt
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New Subatomic Particles Are Shifting the Standard Model of Physics

467 views / 0 likes - added 5 years ago

The Large Hadron Collider just discovered a new pentaquark, but how does it fit in our current understanding of the Standard Model?Could Everything We Know About String Theory Be Wrong? - https://youtu.be/gVcwcaI_viQRead More: LHCb experiment discovers a
14:36
Einstein's grades

345 views / 0 likes - added 3 years ago

Come and take a look at Einstein's report card from his final school year and his time studying at ETH university in Switzerland. We will learn interesting facts about his life, his teachers and the state of physics at the time. Timestamps: 0:00 - Intro1:
05:33
How NASA Plans to Return to the Moon | Apollo

584 views / 1 likes - added 5 years ago

NASA hasn't sent humans back to the Moon in almost 50 years, but in the next decade, the agency has ambitious plans for a lunar revival. Check out the entire Apollo series here!: https://bit.ly/2ApSfg9 Read More: What’s Really Changed—and What Hasn’t—Abou
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Millennium Falcon - 7 Years To Complete World's Most Accurate Replica

323 views / 0 likes - added 3 years ago

Sean from the Youtube channel Square Models, spent 7 years to complete, the most screen accurate, filming quality miniature replica, of the Millennium Falcon, based on the miniature used in the filming of the original 1977 movie, Star Wars.This Millennium
09:13
Egypt Built a Supertall Skyscraper in the Desert

117 views / 0 likes - added 1 year ago

Africa has its first supertall skyscraper.For more by The B1M subscribe now - https://bit.ly/the-b1m Full story here - https://theb1m.com/video/egypt-iconic-tower-new-administrative-capital Additional footage and imagery courtesy of Neom, City of Telosa,
06:17 Popular
Solving Percent Problems | Decimals | Pre-Algebra | Khan Academy

890 views / 0 likes - added 8 years ago

We'll use algebra to solve this percent problem. Watch the next lesson: https://www.khanacademy.org/math/pre-algebra/decimals-pre-alg/percent-word-probs-pre-alg/v/solving-percent-problems-2?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Missed the
03:32
Why These Lasers Are Too Powerful to Use in Space

594 views / 0 likes - added 5 years ago

Many countries have proposed developing giant lasers to shoot space junk into such tiny pieces so that they will no longer pose a threat to important spacecraft like the International Space Station. But, are space lasers really a thing? How Much Accelerat
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Why It’s So Hard to Capture CO2 From the Air

421 views / 0 likes - added 5 years ago

Studies show carbon emissions are not slowing down fast enough to prevent 1.5 ℃ of warming. Could negative emission technologies be the solution? Scientists’ Crazy Plan to Power Solar Panels with E. Coli - https://youtu.be/_XZGrZ3DeLg Read More: Negative
13:37 Popular
Most Vitamin Supplements Are Not Needed, Here’s Why (Part 3 of 3)

817 views / 0 likes - added 5 years ago

Stop taking so much Vitamin C & D, they're doing literally nothing for you. Part 1 of 3: https://www.youtube.com/watch?v=1II147SIBlY&t=1s Part 2 of 3: https://www.youtube.com/watch?v=vVtcpf7miC8 Read More: Vitamin D, the Sunshine Supplement, Has Shadowy M
01:53
The funky -ed irregular verb | The parts of speech | Grammar | Khan Academy

572 views / 1 likes - added 6 years ago

These are the most regular of the irregular verbs; while they don't behave exactly like regular verbs, like present tense "walk" become past tense "walked", they do maintain the "-ed" sound. It's just spelled differently. Practice this yourself on Khan Ac
03:36
‘Glowing Tumors’ Might Be the Next Step in Detecting Cancer

478 views / 0 likes - added 5 years ago

This new pill could help doctors fight cancer by making tumors glow and they can even detect some as small as 2cm. Here’s how it works. Some Popular Surgeries Are Just Placebos, Here’s Why They Still Exist - https://youtu.be/tFTDNotO0Hs Supplementary foot
04:43
Subject, direct object, and indirect object | Syntax | Khan Academy

664 views / 0 likes - added 6 years ago

A subject is the noun phrase that drives the action of a sentence; in the sentence “Jake ate cereal,” Jake is the subject. The direct object is the thing that the subject acts upon, so in that last sentence, “cereal” is the direct object; it’s the thing J
56:50 Popular
Great Museums: Elevated Thinking: The High Line in New York City

807 views / 1 likes - added 9 years ago

Narrated by actress Susan Sarandon, this hour-long documentary film showcases the High Line, a most unusual and unlikely public park. Since opening in 2009, it has become a top global tourist destination, with nearly 5 million visitors annually. Since 199
04:02
What Would a Quantum Internet Look Like?

427 views / 0 likes - added 3 years ago

In this episode, we're tackling the question that's on everyone's minds: what will it take to have quantum internet in our home? Subscribe to Seeker! http://bit.ly/subscribeseeker Watch more Elements! http://bit.ly/ElementsPlaylist Visit our shop at http:
04:39 Popular
China's Crazy Plan to Launch an Artificial Moon

753 views / 2 likes - added 5 years ago

Chinese scientists are planning to launch an “illumination satellite” into orbit in 2020, but will it work? Get 20% off http://www.domain.com domain names and web hosting when you use coupon code SEEKER at checkout! More Crazy Science! - https://www.youtu
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Engineers Are Making Squishy, Bio-Inspired Robots, Here’s How They Work

575 views / 0 likes - added 5 years ago

Scientists are looking to nature to inspire the next generation of robots. Here’s what they’ve come up with. Could the Biggest Ocean Recording Ever Made Redefine Marine Science? | The Swim - https://youtu.be/-GWVmk-U-kk Read More: Soft Robotics: Challenge
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How Apollo 8 Survived the Risky Trip to the Far Side of the Moon | Apollo

575 views / 1 likes - added 5 years ago

A last minute shake up in 1968 sent a manned crew outside of Earth’s orbit for the first time. The crew of Apollo 8, in a very short amount of time, would have to learn how to reach our nearest celestial neighbor and then return safely to Earth. Check out

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