Search Results: "Intuitive"

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08:51
Intuitive Sense Of Probabilities

694 views / 0 likes - added 9 years ago

Intuitive sense of probabilities
1:46:43
Moon landing LIVE: Watch Intuitive Machines Odysseus lander

48 views / 0 likes - added 3 months ago

Houston-based company Intuitive Machines' lunar lander, nicknamed Odysseus, attempts landing on the surface of the moon. A smooth touchdown would put the U.S. back in business on the moon for the first time since NASA astronauts closed out the Apollo prog
01:46 $Visualizing division by fractions$
Visualizing division by fractions

687 views / 0 likes - added 5 years ago

3D animation giving an intuitive understanding of what it means to divide by a fraction.
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10:51
Exact Equations Intuition 2 (proofy)

567 views / 0 likes - added 9 years ago

More intuitive building blocks for exact equations. More free lessons at: http://www.khanacademy.org/video?v=a7wYAtMjORQ
02:59
Voltage Intuition

577 views / 0 likes - added 8 years ago

Voltage is a cornerstone concept in electricity. We create an intuitive mental image by comparing voltage to gravity.
19:56
Laplace Transform Explained and Visualized Intuitively

646 views / 0 likes - added 5 years ago

Laplace Transform explained and visualized with 3D animations, giving an intuitive understanding of the equations. My Patreon page is at https://www.patreon.com/EugeneK
12:47 Popular
Math Antics - Mixed Numbers

2,300 views / 1 likes - added 6 years ago

In this re-make of our Mixed Numbers video, we take a more intuitive approach to converting between Mixed Numbers and Improper Fractions. You can still access the old version of the video here: https://www.youtube.com/watch?v=-55KA6kaXFY
18:51
How To Spot A Liar - Pamela Meyer

540 views / 0 likes - added 8 years ago

On any given day we're lied to from 10 to 200 times, and the clues to detect those lie can be subtle and counter-intuitive. Pamela Meyer, author of Liespotting, shows the manners and "hotspots" used by those trained to recognize deception -- and she argue
05:56
Simpson's Paradox - Statistics gone wrong?

564 views / 0 likes - added 6 years ago

In this video I hope to give you an intuitive grasp of the tricky Simpson's Paradox, which can and has lead to some interesting real-life problems with interpreting statistics. Check wikipedia for more info: http://en.wikipedia.org/wiki/Simpson's_paradox
05:39
Robotic Surgery Unlocks a New Era of Medicine

342 views / 0 likes - added 3 years ago

Like this video about robotic surgery and subscribe here: https://freeth.ink/youtube-subscribe-roboticsurgeryThis video was created in partnership with Intuitive.Up next- Bringing Virtual Reality to Brain Surgery: https://youtu.be/tZvY1a-0rpgHealthcare is
02:29
Three Incorrect Laws of Motion

368 views / 0 likes - added 3 years ago

Newton's Three Laws of Motion are a landmark achievement in physics. They describe how all objects move. Unfortunately most people do not really understand Newton's Laws because they have pre-existing ideas about the way the world works. This film is abou
03:45
Teaching metric measurements suggestion --- length. // Homemade Science with Bruce Yeany

599 views / 0 likes - added 4 years ago

Actively learning physical science requires that students be able to collect data for analysis, being able to measure correctly is an important step in that process. Since the international system of measurements (metric system) is almost universally the
08:35
Relativistic velocity: When 1 + 1 = 1

359 views / 0 likes - added 5 years ago

Anyone who has driven a car has an intuitive understanding of how velocities add. Two cars, heading towards one another head-on at a velocity, have a closing velocity of twice that velocity. It’s all very simple and yet at very high speeds this intuition
01:37
Collaboration in Room-Scale Virtual Reality

520 views / 0 likes - added 6 years ago

Play collaborative games, draw in 3D, and unlock the possibilities of VR: We present CocoVerse, a shared immersive virtual reality environment in which users interact with each other and create and manipulate virtual objects using a set of hand-based too
05:23 Popular
A Different Way To Visualize Rhythm - John Varney

958 views / 0 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/a-different-way-to-visualize-rhythm-john-varney In standard notation, rhythm is indicated on a musical bar line. But there are other ways to visualize rhythm that can be more intuitive. John Varney describes the
05:30
Counter Steering | The interesting physics behind it

224 views / 0 likes - added 3 years ago

Counter steering is an amazing technique used by many bike riders, and is very useful when making a quick turn and doing some bike stunts like this. At first, counter steering looks counter intuitive, you turn the handlebars to the left, but the motorcycl
03:47
Floating boats! The weird physics of upside down buoyancy

360 views / 0 likes - added 3 years ago

Liquid can levitate and boats can float upside down in this gravity-defying physics experiment. Researchers in Paris have been investigating the effect of vertical shaking, which can be used to suspend a layer of liquid in mid-air. They have discovered a
02:57 Popular
Can You Solve This Crazy Equation? Ramanujan's Radical Brain Teaser

1,093 views / 0 likes - added 7 years ago

In 1911, Srinivasa Ramanujan posed this problem involving an infinite nested radical (a never-ending expression that has square roots inside of square roots). Can you figure out how to simplify the equation? The video presents an intuitive solution. Techn
10:20 Popular
SURPRISING Coin Flipping Probability - Flips To HH Versus HT

875 views / 0 likes - added 7 years ago

What is the expected number of coin flips until you get two heads in a row (HH)? What is the expected number of coin flips until you get a heads followed by a tails (HT)? The video presents the solution and an intuitive explanation for this probability ri
04:01 Popular
The simple riddle that 50% of Harvard students get wrong

980 views / 1 likes - added 7 years ago

Sources for scientific journals are provided below. New videos come out every Thursday so subscribe for more videos. Visit my Facebook page for more bite sized tips and psychology information https://www.facebook.com/BiteSizePsych Also, if you like the mu
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11:48 Popular
How Evolution Works

1,807 views / 0 likes - added 8 years ago

The mechanisms of evolution explained in one video. The theory of evolution explains how the enormous variety of life could come into existence. How it is possible for primitive life forms to spawn the millions of different creatures, that exist today. Un
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09:45 Popular
Light Is Waves: Crash Course Physics #39

850 views / 1 likes - added 7 years ago

The way light behaves can seem very counter intuitive, and many physicists would agree with that, but once you figure out light waves it all starts to make more sense! In this episode of Crash Course Physics, Shini shows us how we know that light exists a
10:18
The Spool Paradox

131 views / 0 likes - added 11 months ago

The first 100 people to use code SCIENCE at the link below will get 60% off of Incogni: https://incogni.com/scienceSpools can behave in counter intuitive ways. The puzzle get's even weirder in the limit as the spool gets full, and then goes beyond full!Ch
01:08
You Can Control This Robot by Flexing Your Muscles

410 views / 0 likes - added 5 years ago

In a new paper published today, MIT CSAIL researchers Joseph DelPreto and Daniela Rus used electromyography sensors to make communication between a robot and a human a lot more intuitive without the need for verbal cues. Their system, dubbed RoboRaise, is
24:25
50+ Mind-Bending Optical Illusions to Uncover Your True Personality!

230 views / 0 likes - added 8 months ago

Discover your hidden self with optical illusion personality tests! These mind-bending images unlock your subconscious, unveiling your true personality traits. Are you logical or emotional, analytical or intuitive, introverted or extroverted? It's time to
14:49
The Bizarre Behavior of Rotating Bodies, Explained

345 views / 0 likes - added 4 years ago

Spinning objects have strange instabilities known as The Dzhanibekov Effect or Tennis Racket Theorem - this video offers an intuitive explanation.Part of this video was sponsored by LastPass, click here to find out more: https://ve42.co/LPReferences:Prof.
11:07
Is Quantum Tunneling Faster Than Light? | Space Time | PBS Digital Studios

628 views / 0 likes - added 7 years ago

Start your Audible trial today: http://www.audible.com/spacetime Hello from the other side. In this episode find out how quanta can can move through solid objects. Get your own Space Time tshirt at http://bit.ly/1QlzoBi Tweet at us! @pbsspacetime Faceboo
Vhils Uses Explosives, Chemicals and Power Tools to Create Fine Art | HypeArt Impressions

65 views / 0 likes - added 8 months ago

Alexandre Farto, aka VHILS, is renowned for his monumental relief portraits in locations across the globe. Since the early 2000s, the Portuguese artist has spearheaded countless projects spanning graffiti, street art, site-specific works, installations, a
07:47 Popular
Can You Solve The Probability The Newborn Is A Boy? Many Fail This Interview Question

826 views / 0 likes - added 7 years ago

This problem has been asked in job interviews. On the morning of January 1, a hospital nursery has 3 boys and some number of girls. That night, a woman gives birth to a child, and the child is placed in the nursery. On January 2, a statistician conducts a
09:20
The Heisenberg Uncertainty Principle Explained Intuitively

413 views / 0 likes - added 5 years ago

Use this link for 2 months of unlimited access to over 20,000 classes FREE: https://skl.sh/upandatom4 An intuitive explanation of the Heisenberg Uncertainty Principle of quantum mechanics. Hi! I'm Jade. Subscribe to Up and Atom for new physics, math and c
09:36
Myth-testing Christmas movies with SCIENCE EXPERIMENTS (ft. Vsauce3)

475 views / 0 likes - added 4 years ago

Jake from Vsauce3 and I test scenes from Home Alone, Elf and A Christmas Story using only the Scientific Method... and some cow eyes.FREE Audio Book- http://bit.ly/AudibleMarkRober -American Sniper by Chris KyleJAKE'S VIDEO- https://youtu.be/5NhijmGTwwoTH
07:45
The Monty Hall Problem - Christmas Lectures with Ian Stewart

517 views / 0 likes - added 5 years ago

Ian Stewart explains the Monty Hall problem and its solution. Subscribe for regular science videos: http://bit.ly/RiSubscRibe The Monty Hall problem became infamous in the 1990s where newspaper columnist and puzzle solver Marilyn vos Savant offered a solu
09:02
How To Think About Imaginary Numbers

518 views / 0 likes - added 5 years ago

Sign up to brilliant.org with this link to receive a 20% discount! https://brilliant.org/upandatom/ For more info on imaginary numbers read these articles! https://betterexplained.com/articles/a-visual-intuitive-guide-to-imaginary-numbers/ http://acko.net
17:31
Spinning

291 views / 0 likes - added 3 years ago

GYROSCOPE: https://www.curiositybox.com/store/gyroscopeBRAIN CANDY LIVE: http://www.braincandylive.com/DONG: http://www.youtube.com/dong **LINKS TO LEARN MORE BELOW**Jake unboxing the latest Curiosity Box (SPOILERS): https://www.youtube.com/watch?v=IUK7MU
02:44
Why Do Nuclear Bombs Make Mushroom Clouds?

676 views / 0 likes - added 8 years ago

If you’ve ever put your feet up on a warm summer’s day and played “spot the shape in the cloud,” you might’ve seen a kangaroo, a guy preparing to facepalm, maybe a mushroom... On second thought, hopefully not that last one. Hosted by: Michael Aranda -----
01:44 Popular
Interpreting Two-way Tables | Data And Modeling | 8th Grade | Khan Academy

1,724 views / 0 likes - added 8 years ago

Learn how to read two-way tables. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-counting-topic/cc-early-math-counting/v/counting-with-small-numbers?utm_source=YT&utm_medium=Desc&utm_c
04:01 Popular
Comparing Values With Calculator | Numbers And Operations | 8th Grade | Khan Academy

1,154 views / 0 likes - added 8 years ago

Learn how to compare 22.9% to √0.45 using a calculator. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-numbers-operations/cc-8th-approximating-irrational-numbers/e/approximating-irr
04:10 Popular
Approximating With Powers Of 10 | Numbers And Operations | 8th Grade | Khan Academy

1,175 views / 0 likes - added 8 years ago

Learn how to approximate how much larger the world population was than the US population in 2014. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-numbers-operations/cc-8th-orders-of-
02:41 Popular
Multiplying Multiples Of Powers Of 10 | Numbers And Operations | 8th Grade | Khan Academy

1,132 views / 0 likes - added 8 years ago

Learn how to multiply (9 * 10^9) (-2 * 10^-3). Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-numbers-operations/cc-8th-orders-of-magnitude/e/orders-of-magnitude?utm_source=YT&utm_m
08:02 Popular
The Most Advanced Robots In The World

1,133 views / 4 likes - added 8 years ago

The most advanced robots in the world might not be exactly what you’re expecting. But they’re shaping humanity’s future. Hosted by: Michael Aranda ---------- Dooblydoo thanks go to the following Patreon supporters -- we couldn't make SciShow without them!
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03:58 Popular
Do Gut Feelings Actually Exist?

720 views / 1 likes - added 7 years ago

Have you ever wondered why you get that feeling in your gut when faced with a risky decision? There's more behind it than you may think. How Scientists Are Hacking Bacteria To Fight Disease - https://youtu.be/caiIUZDclIg Sign Up For The Seeker Newsletter
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01:18 Popular
Can You Make 4 Triangles From 6 Matches?

977 views / 0 likes - added 7 years ago

Can you use 6 matches to make 4 triangles of equal size and equal shape? This is harder than it sounds! Give it a try before watching the video for a solution. If you like my videos, you can support me at Patreon: http://www.patreon.com/mindyourdecisions
04:22 Popular
Impossible Algebra Problem

1,237 views / 0 likes - added 7 years ago

This problem is making the rounds. Can you place numbers in the four boxes so all the equations are true? Blog post (text/image explanation): http://wp.me/p6aMk-4up If you like my videos, you can support me at Patreon: http://www.patreon.com/mindyourdecis
03:25 Popular
Can You Solve This? AA + BB + CC = ABC

2,476 views / 0 likes - added 7 years ago

If AA + BB + CC = ABC, what are the values of A, B, and C? All the digits are distinct and positive. Watch the video for a solution. Blog (text explanation): http://wp.me/p6aMk-4Cm If you like my videos, you can support me at Patreon: http://www.patreon.c
04:42
How Warren Buffett Tried To Trick Bill Gates In A Dice Game

684 views / 0 likes - added 7 years ago

Warren Buffett once challenged Bill Gates to a dice game similar to this one. How would you play the game? Blog post (text explanation) http://wp.me/p6aMk-4ro Source The dice numbers and the story are described at Microsoft Research's website for non-tran
01:57 Popular
I Will Read Your Mind - Math Magic Trick

1,249 views / 2 likes - added 7 years ago

Pick a 2 digit number. Got it? Now and add up the digits. Subtract that from your original number. Look up the resulting number in the table. Can I figure out the symbol you are looking at? This video predicts your symbol and explains why this math trick
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05:57
How To Split A Cake Fairly Using Math

689 views / 0 likes - added 7 years ago

How can 2 people split up a cake, knowing that each person wants to get a larger piece than the other? What about 3 people, or even N people? This is an example of a fair division problem from game theory. There are many cake-cutting algorithms to produce
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06:24 Popular
The Seemingly Impossible Escape Logic Puzzle

1,446 views / 0 likes - added 7 years ago

An evil logician takes Alice and Bob captive. They have a chance to escape if they can deduce the total number of trees in the prison. Can they figure it out? Source of puzzle wu: riddles forum https://www.ocf.berkeley.edu/~wwu/cgi-bin/yabb/YaBB.cgi?board
04:52 Popular
Can You Solve The Two Rope Puzzle?

708 views / 0 likes - added 7 years ago

You have two ropes and a lighter. Each rope burns in 60 minutes, but the ropes do not burn at a constant rate. How can you measure 45 minutes by burning the ropes? Some of you might have heard this problem before. If so, try this variation: how can you me
06:24 Popular
Can You Solve The Chameleon Riddle?

1,004 views / 0 likes - added 7 years ago

A museum has 13 blue, 15 red, and 17 green chameleons. Whenever two chameleons of different colors meet, they both change into the color of the other chameleon (if blue and red met, for example, they would both turn green). As the chameleons mingle, is it
07:25
What Happens if You Put a Vacuum Chamber in a Vacuum Chamber? Action Lab Box#1 Unboxing!

512 views / 0 likes - added 5 years ago

Get your Action Lab Box Now! https://www.theactionlab.com/ Follow me on Twitter: https://twitter.com/theactionlabman Facebook: https://www.facebook.com/theactionlabrat In this video I show you what happens when you put a vacuum chamber in a vacuum chamber
07:52 Popular
Find The 10 Digit Number Classic Puzzle And Solution

883 views / 0 likes - added 7 years ago

I'm thinking of a 10 digit number that uses the each digit 0 to 9 exactly once and where the number formed by the first n digits is divisible by n. What could my number be? The video explains how to find the answer using tests for divisibility. Blog post:
03:00
Multiply Numbers By Drawing Lines

620 views / 0 likes - added 6 years ago

Gow to multiply numbers by drawing lines. Get the Multiply By Lines Book! https://www.amazon.com/gp/product/1500866148/ If you like my videos, you can support me at Patreon: http://www.patreon.com/mindyourdecisions Connect on social media. I update each s
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04:13 Popular
Adults Stumped By Geometry Problems For 10 Year Olds. Can You Solve Them?

841 views / 0 likes - added 7 years ago

These homework problems were given to 10 year old children (Year 5) in England (Glossop, Derbyshire) and they were posted to Facebook when some adults found them to be difficult. One person claimed the problems were impossible to solve. Can you figure the
07:10
TOUGH Interview Question - Ways To Give 11 Coins To 3 People

606 views / 0 likes - added 7 years ago

How many ways can you divide 11 coins to 3 people? How many ways are there if each person has to get at least 1 coin? This puzzle is an example of a technical interview question. The video demonstrates the solution, which indicates the number of non-negat
02:57 Popular
Viral Facebook Math Problem

1,287 views / 1 likes - added 7 years ago

This problem has over 2 million comments on Facebook and is getting coverage in mainstream media and blogs. Can you figure out this Facebook fruit algebra puzzle involving apples, bananas, and coconuts? The video presents what many people consider to be t
08:27
Can You Solve The 3 Cards Riddle?

677 views / 0 likes - added 7 years ago

There are 3 cards in this problem. One card is blue on both sides, another is red on both sides, and the last is red on one side and blue on the other. The cards are put in a bag and I pick one at random. Without looking at the colors on the card, I place
03:31 Popular
How Logical Are You? The Irrationality Illusion Tricks Most

802 views / 0 likes - added 7 years ago

This video relates a cognitive bias ("irrational" decision) to an optical illusion (picture at 1:45). For more, check out my new book, "The Irrationality Illusion: How to Make Smart Decisions And Overcome Bias" http://amzn.to/1o3FaAg Blog post (text and i
02:45 Popular
The Day After Tomorrow Is Yesterday Riddle. Can You Solve It?

703 views / 0 likes - added 7 years ago

This puzzle is popular on Facebook and many other sites. "When the day after tomorrow is yesterday, then today will be as far from Wednesday as today was from Wednesday when the day before yesterday was tomorrow. What day is today?" Can you solve this tri
02:23
This SAT Math Question Has A Mistake

664 views / 0 likes - added 7 years ago

This question appeared on the October 1980 SAT exam. Like all questions, it was supposed to have exactly one correct answer. However the test-makers made a mistake. Can you figure out what they did wrong? Blog post (text explanation): http://wp.me/p6aMk-4
03:33 Popular
Can You Solve This Intelligence Test? Viral Facebook Puzzle

739 views / 0 likes - added 7 years ago

If 6 + 4 = 210, and 9 + 2 = 711, what is the rule to combine numbers? This "intelligence test" has been shared more than 3 million times on Facebook. On Twitter people claim solving it means you have an IQ of more than 150 (genius level). In this video I
05:09 Popular
Can You Solve The Snake Eyes Probability Riddle?

838 views / 0 likes - added 7 years ago

You close your eyes and roll a pair of dice. The casino dealer announces that at least one of the rolls is showing a 1.What is the probability that both dice are showing a 1? Watch the video for the solution. (Snake eyes is a term for rolling a pair of 1s
06:57
When Is Christmas? Mentally Convert Date To Day Of The Week

529 views / 0 likes - added 7 years ago

January 1, 2016 is a Friday. When will Christmas be in 2016? What about Christmas in 2055? You can do this in your head! Blog post (text explanation): http://wp.me/p6aMk-4qQ Doomsday Rule (previous video): https://www.youtube.com/watch?v=UsStBxY9STw Calcu
05:39 Popular
Can You Solve A 5th Grade Problem From China? Find The Area Of ABCD

788 views / 0 likes - added 5 years ago

Thanks to Eric from Miami for suggesting this problem and sending a solution! The diagram shows a quadrilateral ABCD with the values for some angles and the length of AB. Can you figure out the area of ABCD? Subscribe: https://www.youtube.com/user/MindYou
05:55 Popular
"Impossible" Logic Puzzle - How Many Liars Are At The Party?

807 views / 0 likes - added 7 years ago

A party has 100 people who are either liars are truth tellers. Liars always lie and truth tellers always say the truth. After the party you ask each person, "How many truth tellers did you shake hands with?" Each person gives a different answer from 0 to
03:28 Popular
Flower Math Problem - Adults Stumped By Question For Kids In China

1,387 views / 2 likes - added 7 years ago

This problem is said to come from a test given to a Chinese kindergarten class (5 year olds). It was posted online and caused a lot of debate as adults were stumped about the correct answer, some saying it is impossible. Can you figure it out? This video
15:15
Moving Faster Than The Speed Of Light? Special Relativity Velocity Addition Formula

681 views / 0 likes - added 7 years ago

If train A is moving towards train B, and each train moves at 75% the speed of light (relative to the ground), will an observer on train A think that train B is moving at 150% the speed of light? But nothing moves faster than the speed of light, so what i
04:53 Popular
Can You Solve The Friendship Riddle?

1,298 views / 0 likes - added 7 years ago

In a group of 6 people, you might find that some people are friends on Facebook, or you might find out that no one is friends on Facebook. Show that there is always a group of 3 people in which either: (a) all 3 people are mutual friends or (b) the 3 peop
01:49 Popular
This Matchstick Puzzle Is

853 views / 1 likes - added 7 years ago

This classic matchstick/toothpick puzzle is making the rounds because it is supposedly "extremely hard" for adults. Can you make 3 squares by moving 3 matchsticks? You cannot break any of the sticks, the resulting squares must be of equal size, and each t
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07:49 Popular
Can You Solve The Viral 9 = 72 Puzzle? The Correct Answer Explained

1,073 views / 0 likes - added 7 years ago

This problem has been shared millions of times on Twitter/Facebook with the claim "99% fail" to solve it and that only a genius could find the correct answer. If 9 = 72, 8 = 56, 7 = 42, 6 = 30, 5 = 20, then 3 = ? In this video I explain what many people b
06:01 Popular
Can You Solve The Viral 1 + 4 = 5 Puzzle? The Correct Answer Explained

11.8k views / 1 likes - added 7 years ago

This problem was shared on Facebook with the claim that only one in a thousand could figure it out. It went viral and generated over 3 million comments. Here is the problem. If 1 + 4 = 5, 2 + 5 = 12, 3 + 6 = 21, what is 8 + 11 = ? This video presents what
07:25 Popular
Can You Solve The Race To December 31 Riddle?

713 views / 0 likes - added 7 years ago

Here's a fun game you can play with another person. The game starts on January 1. Each of two players takes turns calling out another date. The new date has to be a later date in the year with either the same month OR the same day (from January 1, a playe
03:21 Popular
Can You Solve A Puzzle That Fooled Richard Feynman?

706 views / 0 likes - added 5 years ago

What is the radius of the circle, in simplest terms involving a, b, and c? I read that even the great mind Richard Feynman made a mistake. Watch the video to learn the common mistake and what the correct answer is. Source Feynman story http://web.media.mi
05:48
What Is The Area? "You Should Be Able To Solve This"

505 views / 0 likes - added 5 years ago

Thanks to Reio in Romania for emailing me this fun problem! What is the area? This puzzle was shared with the tagline "you should be able to solve this." Solution to 5th grade Chinese challenge problem https://youtu.be/OuJQaxZvlYs My blog post for this vi
13:40 Popular
BEST Way To Play Memory (Card Game) - WIN Using Math

948 views / 0 likes - added 7 years ago

The card game of memory (aka concentration) is a children's game to test visual recall. Strategically you can figure out the best move by doing probability calculations. This video explains the best possible way to play the game mathematically. You can le
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03:17
Can YOU Solve It? This Question Stumped 75% Of PhD Economists

604 views / 0 likes - added 7 years ago

Introductory economics courses cover the concept of an opportunity cost. Can you figure out the opportunity cost for the problem in the video? This video presents a question that surprisingly more than 75% of PhD economists did not answer correctly. Paper
09:11 Popular
Can You Solve The Rectangle Ratio Puzzle? The Surprising Answer

850 views / 0 likes - added 7 years ago

Start with a unit square (a rectangle with both sides equal to 1, call it R1). Attach a rectangle of area 1 to its right side, then attach a rectangle of area 1 to its top. The border of this new shape is another rectangle, call it R2. We can repeat the p
03:48 Popular
Can You Solve This Harvard Admissions Question? Algebra Problem, 1869

1,464 views / 0 likes - added 7 years ago

The Harvard admissions exam in 1869 included this algebra problem: "A man bought a watch, a chain, and a locket for $216. The watch and locket together cost three times as much as the chain, and the chain and locket together cost half as much as the watch
08:05 Popular
Can You Solve The Hardest Easy Geometry Problem?

1,262 views / 1 likes - added 7 years ago

In the figure, what is the value of angle x? This problem is known as Langley's Adventitious Angles. It is also known as the hardest easy geometry problem because it can be solved by elementary methods but it is notoriously difficult to work out. Can you
05:57 Popular
Can You Solve This 6th Grade Geometry Problem From Singapore? The Area Of A "Claw"

1,123 views / 1 likes - added 7 years ago

This problem was given to Primary 6 (age 11-12) students in Singapore. What is the area of the shaded region in the video, which consists of the region bounded by 4 quarter circles in a 3x3 grid of squares, and each square has a side length of 4? The shad
03:51 Popular
Can You Solve This MIT Admissions Question? Geometry Problem, 1869

944 views / 0 likes - added 7 years ago

The Massachusetts Institute of Technology (MIT) is one of the top ranked universities in the world. This question appeared on its admissions exam nearly 150 years ago. "The perpendicular dropped from the vertex of the right angle upon the hypotenuse divid
06:24
Can You Solve The Missing Sock Puzzle?

614 views / 0 likes - added 7 years ago

A statistician keeps a simple wardrobe. He only purchases pairs of black socks and white socks, and he keeps all of the socks in a pile in the drawer. Recently one of the socks was lost in the laundry. The socks have a mathematical property. If you select
02:51 Popular
The Horse Horseshoe Boots Viral Algebra Problem - The Correct Answer Explained

1,720 views / 2 likes - added 7 years ago

A lot of people are arguing over the correct answer to this algebra problem involving horses, horseshoes, and boots. A Facebook post with this problem has over 500,000 comments. Can you figure it out? In this video I explain the correct answer. Blog post:
14:22
Why Heat Pumps are Essential for the Future - Explained

341 views / 0 likes - added 1 year ago

Heat pumps explained. Go to https://curiositystream.com/Undecided to get Curiosity Stream for only $14.99 for the whole year! We have a home heating and cooling (HVAC) solution that could move 3-5x more heat than the electricity we put into it. Air source
11:27 Popular
Can You Solve The Viral 11x11 = 4 Puzzle? The Correct Answer Explained

3,046 views / 1 likes - added 7 years ago

If 11x11=4 and 22x22=16, what is 33x33=? This puzzle has been shared with the claim that only geniuses can solve it. It has gotten millions of views on the internet and Facebook as people have debated the correct answer. In this video I present what many
03:16 Popular
Can You Solve This 8th Grade Geometry Problem? 75% Got The Wrong Answer

997 views / 0 likes - added 7 years ago

What is angle A in the star-shaped figure? This problem appeared on the 1999 AMC 8 test (intended for 8th grade students in the US). Approximately 75% of test-takers did not mark the correct response. Can you figure it out? Watch the video for a solution.
05:26
Can You Solve The Red Ball Lottery Puzzle?

668 views / 0 likes - added 7 years ago

(Same video without the music: https://youtu.be/sz5oLEpc8xE) This problem involves 100 red balls, 100 blue balls, and 2 urns. First you distribute all the balls between the 2 urns, placing at least 1 ball in each urn. Next, you select an urn at random, an
07:21 Popular
Can You Solve The Magical Pond Puzzle?

1,029 views / 1 likes - added 7 years ago

(Same video with music: https://youtu.be/nF-Gpk0ZpRk) You visit a shrine that has 3 temples. Before each temple, you have to swim in a magical pond. Your path is pond-temple1-pond-temple2-pond-temple 3. Each time you swim, the pond magically triples the n
02:37 Popular
Adults Stumped By Maths Questions For 15 Year Olds. Can You Solve Them?

791 views / 0 likes - added 7 years ago

How hard are math tests? A survey asked 2,000 UK adults to answer sample GCSE test questions intended for 15 year old students. On average, the survey questions were missed by about 40% of adults. Can you solve them? The video presents 2 questions that ma
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Can You Solve The Marriage Logic Problem? 80% Fail

674 views / 0 likes - added 7 years ago

Surveys have found 80 percent get this logic problem wrong. Alice is looking at Bob, and Bob is looking at Charlie. Alice is married; Charlie is not. Is a married person looking at an unmarried person? Answer choices are A) Yes, B) No, and C) Cannot be de
04:13 Popular
Can You Solve This Grade 12 Geometry Problem From Australia? The Marshmallow Chocolate Puzzle

904 views / 0 likes - added 7 years ago

A marshmallow has the shape of a cylinder with diameter 5 and height 3. A dessert is made with 24 marshmallows: there are two stacked layers of marshmallows, and each layer has 3 rows of 4 marshmallows. The gaps between the marshmallows are filled with ch
05:33 Popular
What is 6÷2(1+2) = ? The Correct Answer Explained

879 views / 0 likes - added 7 years ago

What is 6÷2(1+2) = ? This problem went viral and generated millions of comments on Facebook, Twitter, YouTube and social media sites. I explain how to get the correct answer by using the modern interpretation of the order of operations. I also explain how
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03:54 Popular
What's The Best Soup Can Size? The Optimal Cylinder Puzzle

795 views / 0 likes - added 7 years ago

A cylindrical can with volume V can be made in different ways. The cylinder can be wide and short (large radius and small height), or it can be narrower and taller (small radius and larger height). Which shape uses the least material? That is, which can h
07:40 Popular
Can You Solve The 21 Flags Game From Survivor?

884 views / 1 likes - added 7 years ago

Contestants on the TV show "Survivor" faced off in a series of challenges for a grand prize of $1 million. Most of the challenges were physical like hiking many miles or diving underwater. But one challenge was mathematical. The game had 21 flags and cont
08:51 Popular
The Viral Balloon Puzzle - The REAL Answer Explained (Using Ph.D. Level Math)

765 views / 0 likes - added 5 years ago

They say only geniuses can solve this puzzle, and this time they are correct. Thanks to all patrons! Special thanks to: Shrihari Puranik Yildiz Kabaran Kyle My blog post for this video https://wp.me/p6aMk-82U Sources https://puzzling.stackexchange.com/que
09:50 Popular
Can You Solve This 6th Grade Geometry Problem From China?

1,260 views / 1 likes - added 7 years ago

What is the total area of the red spots? The diagram involves a rectangle with dimensions of 10 and 20. Inside the rectangle one of its diagonals is connected. There are two circles of equal size that are tangent to each other and the rectangle. The video
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05:52
Can You Solve The "MEANEST" SAT Test Question Ever?

698 views / 0 likes - added 5 years ago

On the SAT exam, you have about 2 minutes to read and solve each math question. This one about averages can send you in a loop, unless you approach it systematically. In the video I also explain a shortcut to help you solve this type of problem quickly. S
02:06 Popular
Can You Solve The Viral Matchstick Puzzle 6 + 4 = 4?

3,468 views / 0 likes - added 7 years ago

Can you fix 6 + 4 = 4 by moving 1 matchstick? This problem has gone viral on Facebook, with one post having over 400,000 shares. The ground rules are you cannot break a stick, it should be an equality (=), and you have to use 7-segment numbers (the block
06:18 Popular
Can You Solve The Diluted Wine Puzzle?

759 views / 1 likes - added 7 years ago

A servant has a method to steal wine. He removes 3 cups from a barrel of wine and replaces it with 3 cups of water. The next day he wants more wine, so he does the same thing: he removes 3 cups from the same barrel (now with diluted wine) and replaces it
04:30 Popular
Adults Are Arguing About This 3rd Grade Math Problem

887 views / 0 likes - added 7 years ago

"If Sue runs around the track twice, and John runs around the track four times more than Sue, how many times does John run around the track?" This problem was given to 3rd graders. A parent disagreed with the answer the teacher was marking. After it was p
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The Wallis Formula For π

581 views / 0 likes - added 7 years ago

Start with the pair of fractions (2/1)(2/3). Now increment each number by 2 to get the pair of fractions (4/3)(4/5). Repeat this to get the next pair, and repeat this infinitely many times. If you then multiply all the fractions, you get a marvelous value
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Toyota T-HR3 Humanoid Robot

638 views / 0 likes - added 6 years ago

http://www.Motorward.com - Subscribe For More Cool Videos: https://goo.gl/2nkv2Z Toyota Motor Corporation (Toyota) today revealed T-HR3, the company's third generation humanoid robot. Toyota's latest robotics platform, designed and developed by Toyota's P
07:39 Popular
Can You Solve The Alien Extinction Riddle? Hard Job Interview Question

867 views / 0 likes - added 7 years ago

A single alien lands on Earth. Every day after that, each alien on Earth undergoes a transformation, which could be any of the four equally likely events: (a) the alien dies, (b) the alien does nothing, (c) the alien replicates itself (2 aliens total), (d
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What's Your Personality? (Test with Answers / Mind Reading)

666 views / 1 likes - added 6 years ago

★★ Find your personality here below! ★★ ...see if it accurately describes your personality: ##### COLORS ########## Blue: You are deep, calm, caring, reliable and trustworthy. Also you appear strong and confident. You also crave harmony and peace. Red: Yo
05:27 Popular
Can You Solve The Mind-Bending Self-Counting Sentence Riddle?

952 views / 0 likes - added 7 years ago

"In this sentence, the number of occurrences of the digit 0 is __, of the digit 1 is __, of the digit 2 is __, of the digit 3 is __, of the digit 4 is __, of the digit 5 is __, of the digit 6 is __, of the digit 7 is __, of the digit 8 is __, and of the d

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