Search Results: "frequency probability unfair coins"

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10:31 Popular
How I broke a wine glass with my voice (using science!)

1,036 views / 1 likes - added 6 years ago

If you sing at a wine glass at its exact resonant frequency, you can break the glass without the help of a speaker! Learn the physics behind that. To learn more about Brilliant, go to https://brilliant.org/PhysicsGirl and sign up for free. First 200 peopl
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02:37
Inventions: The Tesla Coil

700 views / 2 likes - added 6 years ago

The inventor Nikola Tesla had dreamed of supplying the world with electricity wirelessly. Tesla developed a device in 1891 which could produce bolts of high voltage electricity, known as the Tesla Coil. The device has a primary coil which passes a current
14:46 Popular
21 SIMPLE MAGIC TRICKS EVERY CHILD CAN MAKE

929 views / 1 likes - added 6 years ago

Do you believe in magic? Do you want to amaze your friends with wonderful magic tricks? Watch this cool video and learn awesomely simple magic tricks with coins, balloons or batteries! Subscribe to 5-Minute Crafts KIDS: https://goo.gl/PEuLVt -------------
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Musical Wooden Blocks - with Charles Taylor

628 views / 0 likes - added 6 years ago

The frequency of sound waves and the pitch of the sound we hear are inextricably linked; the higher the frequency, the higher the pitch. Charles Taylor demonstrates this in our final Ri Advent clip from the 1989 CHRISTMAS LECTURES "Exploring music", where
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How To Do 10 Magic Tricks

1,319 views / 12 likes - added 6 years ago

Easy Magic Tricks Anyone Can Do! Secrets that Magicians don't want you to know :) In this episode of How To Magic, Evan Era shows how to do 10 Easy Magic Tricks! Amazing magic tricks for kids, beginners, and all ages! Magic with cards, amazing tricks with
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Multiply Numbers By Drawing Lines

625 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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12:38 Popular
12 Minutes Of Great Sounds!

730 views / 0 likes - added 6 years ago

Think these sounds are great? Watch this video about computers learning to understand them → http://g.co/go/NFsound. The right-side visuals are spectrograms (representing the frequencies of the sounds over time) & were made with → https://go
13:07 Popular
GUMMY FOOD VS REAL FOOD CHALLENGE McDonald's Fries Burgers and Breakfast Food family fun taste test

3,008 views / 15 likes - added 6 years ago

GUMMY FOOD VS REAL FOOD CHALLENGE McDonald's Fries Burgers and Breakfast Food family fun taste test with Ryan ToysReview! Ryan and Mommy tried yummy candy treats and real food like fries, pizza, hamburgers, pancakes, eggs, donuts and more! Some have gross
07:49 Popular
The Photoelectric Effect: Light As A Particle

1,955 views / 0 likes - added 6 years ago

A simple, easy-to-understand explanation of the experiment that proved the particle nature of light and won Einstein a nobel prize. The Photoelectric Effect. Hi! I'm Jade. I make fun physics videos that will make you smarter while making you smile :) ***S
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The Haunting Hymn of the Taos Hum

538 views / 0 likes - added 6 years ago

In Taos, New Mexico, a strange, low-frequency hum plagues two percent of the local population. This persistent droning emerges seemingly from nowhere and affects those who hear it without relief. Some attribute “The Taos Hum” to hearing disorders, while o
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Putting Hurricane Harvey In Perspective

662 views / 4 likes - added 6 years ago

Replace Harvey with Irma… still true. Don’t miss our next video! SUBSCRIBE! ►► http://bit.ly/iotbs_sub ↓↓↓ More info and sources below ↓↓↓ Hurricanes Harvey and Irma have affected many in Texas, Louisiana, and Florida. Here's a few ways you can help if yo
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Resonant pendulum demonstration ///Homemade Science with Bruce Yeany

794 views / 0 likes - added 6 years ago

Can you make just one of the pendulums move and not the others? I call this my Frequency Amplified Kinesthetic Energy Demonstration (FAKED) device. Perhaps I can do it telepathically, probably not but you can get just one of them to move if you understand
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Handheld TESLA COIL GUN at 28,000fps - Smarter Every Day 162

729 views / 2 likes - added 6 years ago

GET Wizard here: http://www.audible.com/Smarter Click here if you're interested in subscribing: http://bit.ly/Subscribe2SED Click here to tweet this video: https://goo.gl/77z3yc ⇊ Click below for more links! ⇊ This is the musical Tesla coil used in the vi
03:47
At-Home DNA Tests Might Not Be as Accurate as You Think...

530 views / 0 likes - added 6 years ago

DNA tests are a popular resource for people wanting to understand their ancestry and disease probability. But how accurate are these tests? We Got Our DNA Tested, Here's How It Actually Works - https://youtu.be/dbiv6BAmdF4 Sign Up For The Seeker Newslette
02:40 Popular
How to Build Amazing Balancing Bridge out of Coins Without Glue

866 views / 1 likes - added 6 years ago

How to Build Amazing Balancing Bridge out of Coins Without Glue In this video I show you how to build amazing bridge from coins without glue! You will be surprised how easy you can build it! I used near 200 coins. If you like this video don't forget to su
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DIY GIANT FIDGET SPINNER PIZZA and Fidget Spinners Collections Toys with Ryan ToysReview

1,726 views / 0 likes - added 6 years ago

DIY GIANT FIDGET SPINNER PIZZA and Fidget Spinners Collections Toys with Ryan ToysReview! Ryan's Family tried to make a pizza fidget spinner at home! Then it's fun hand spinners playtime and toy hunt fort surprise toys! Great Kids Video for children who l
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Musical Saws, Chladni plates and a Homemade bow // HomeMade Science with Bruce Yeany

651 views / 0 likes - added 6 years ago

REPOSTED WITH VOLUME ADJUSTED Make "music" with a carpenter saw, produce frequency patterns on easy to make Chladni plates, AND make your own violin type bow to use with both activities. Science is better when you make it yourself!
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7 VANISH Magic Tricks REVEALED!! **Bermuda Triangle**

1,048 views / 3 likes - added 6 years ago

Mysterious Vanish Magic Tricks in the Bermuda Triangle! In this episode of How To Magic, Evan Era from EvanEraTV shows Vanish Magic Tricks from San Juan, Puerto Rico in the Bermuda Triangle! Recorded this on location in San Juan, Puerto Rico, one of the c
07:45 Popular
Jelly Belly Candy Electric Snow Cone Maker! DIY homemade Ice Shaver with Ryan ToysReview

1,341 views / 3 likes - added 6 years ago

Jelly Belly Candy Snow Cone Maker with different flavors! It's a family fun DIY shave ice with Ryan ToysReview! It creates homemade snow cones with your favorite Jelly Belly Syrup flavors! Great Kids Video for children who loves eating yummy kids treats!
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World's Largest Giant Chupa Chups Lollipops Magic Transform Candy! Kids Pretend Playtime Family Fun

2,236 views / 9 likes - added 6 years ago

World's Largest Giant Chupa Chups Lollipops Magical Transform Candy for Kids Pretend Playtime Family Fun with Ryan ToysReview! Ryan used his magical wand and transform regular size candy to a giant size candy! Then it's extreme giant Chupa Chups playtime!
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How fast is a Fidget Spinner?

926 views / 0 likes - added 6 years ago

Use some mathematics to work out how fast a Fidget Spinner spins. In fidgets/second. Maths and science teachers: please do torment your students with this experiment. All they need is a Fidget Spinner and a phone; the two things they refuse to be without.
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02:50 Popular
What Nuclear Bombs Taught Us About Whales

804 views / 0 likes - added 6 years ago

A monitoring system developed to listen for secret nuclear tests mostly hears other events happening all around Earth. Thanks to CTBTO for sponsoring this video: https://www.ctbto.org/ Thanks also to our supporters on https://www.patreon.com/MinuteEarth V
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10 MAGIC COIN TRICKS!

2,342 views / 14 likes - added 7 years ago

Magic Coin Tricks! In this episode of How To Magic, Evan Era from EvanEraTV shows 10 Greatest Magic Tricks with Coins! Easy magic tricks for kids, beginners, and all ages! Family friendly fun coin magic trick tutorials with step by step instructions for e
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GIANT CANDY CHALLENGE! World's Biggest Candy magic transform Family Fun Taste Test

2,360 views / 14 likes - added 7 years ago

GIANT CANDY CHALLENGE with Ryan ToysReview! Ryan's Family found the world's Biggest Candy like Giant Size Sour Patch Kids, Giant Skittles, giant rice crispy treats, and huge hershey's syrup! Ryan magical transform regular candy size to giant size candy ba
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How to Make a Coin Battery

1,198 views / 0 likes - added 7 years ago

Make your own battery using copper coins, vinegar, foil and cardboard. I had enough energy to power an LED with mine and also a TV remote! Really simple science project and easy to do yourself. Other Videos: Balloon Experiments - https://www.youtube.com/w
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03:29 Popular
Visualist Will Tsai: Close-Up Magic Act Works With Cards and Coins - America's Got Talent 2017

1,269 views / 1 likes - added 7 years ago

Take the act's recommendation and don't blink, because this style of close-up magic moves quickly! Check it out! » Get The America's Got Talent App: http://bit.ly/AGTApp » Subscribe for More: http://bit.ly/AGTSub » Watch America's Got Talent Tuesdays 8/7c
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Are We All Related?

502 views / 0 likes - added 7 years ago

This is part 3 of our special series on Human Ancestry! Watch the entire series here ►► http://bit.ly/OKTBSHuman ↓↓↓More info and sources below ↓↓↓ In part 3 of our special series on human ancestry, we investigate how closely related we all really are. Ba
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FIDGET SPINNER CHALLENGE and Amazing Spinners tricks with Ryan ToysReview

1,640 views / 1 likes - added 7 years ago

FIDGET SPINNER CHALLENGE showdown with Ryan ToysReview! Ryan's Family test out some rare and awesome Fidget toys and tried out some awesome spinning tricks for beginners! Which spinners were your favorite in our fidget spinner collection with cheap and ex
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10 MAGIC MONEY TRICKS!

1,490 views / 7 likes - added 7 years ago

Magic Tricks with Money! In this episode of How To Magic, Evan Era from EvanEraTV shows 10 EASY Magic Tricks with Money! Learn free magic tricks with money! Coins, Dollar Bills, and more magic you can do! Tutorials for each magic trick with step by step i
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7 MONEY MAGIC TRICKS!

891 views / 6 likes - added 7 years ago

How To Magic Tricks with Money! In this episode of How To Magic, Evan Era from EvanEraTV shows 7 Magic Money Tricks! Easy dollar bill magic tricks for kids, beginners, and all ages! Turn a $1 bill into a $100 dollar bill! Family friendly fun coin and doll
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Two-Thirds of All Cancers Are Caused By One Thing: Your DNA

476 views / 0 likes - added 7 years ago

While environmental factors can play a huge role, the number one cause of cancer is mutations from regular cell replication. Does this mean cancer in humans is simply inevitable? Why Did Our Early Ancestors Resort to Cannibalism? - https://youtu.be/dPmnoV
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Check your intuition: The birthday problem - David Knuffke

901 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/check-your-intuition-the-birthday-problem-david-knuffke Imagine a group of people. How big do you think the group would have to be before there’s more than a 50% chance that two people in the group have the same
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05:24 Popular
Can you solve the pirate riddle? - Alex Gendler

1,823 views / 3 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/can-you-solve-the-pirate-riddle-alex-gendler It’s a good day to be a pirate. Amaro and his four mateys – Bart, Charlotte, Daniel, and Eliza have struck gold – a chest with 100 coins. But now, they must divvy up
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05:04 Popular
Area of a Triangle - Fun challenging math problem

2,194 views / 0 likes - added 7 years ago

Can you solve the area of a triangle given points X and Y. This is not a basic problem, but it is a fun and challenging math problem. See if you are smart enough to find the area of a triangle for yourself. My name is Chris and my passion is to teach math
04:32 Popular
Math Word problems - Solving triangles

1,317 views / 0 likes - added 7 years ago

Become an expert in solving math word problems! In this problem you will learn how to use triangles to solve the height of a building. A man steps back 50 feet which the angle to the top of the building change 15 degrees. Using this information find the h
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How Does the Shape of Money Shape Life?

801 views / 0 likes - added 7 years ago

Why Are Coins Round? Give it a think.... Support us on Patreon! https://patreon.com/pbsideachannel We got merch! http://bit.ly/1U8fS1B Tweet us! http://bit.ly/pbsideachanneltwitter Idea Channel Facebook! http://bit.ly/pbsideachannelfacebook Talk about thi
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What Is Luck?

398 views / 0 likes - added 7 years ago

Take the 2017 PBS Digital Studios survey! https://www.surveymonkey.com/r/pbsds2017 ↓ More info and sources below ↓ Is luck real? It might feel like a mystical force tugging us toward good or bad fortune, but it turns out luck is really where probability r
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World's Largest Gummy Worm Gummy Bear and Snake Candy Challenge Real Messy Food Kids Candy Review

2,479 views / 8 likes - added 7 years ago

World's Largest Gummy Worm Gummy Bear and Snake Candy Challenge Real Messy Food Kids Candy Review World's Largest Gummy Bear Gummy Worm and Snake Candy Challenge Real Messy Food Kids Candy Review with Ryan ToysReview and his family! The super giant gummy
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Why is TV 29.97 frames per second?

651 views / 0 likes - added 7 years ago

I look at the historical quirks which gave us TV at 29.97 frames per second. In North America at least. It's a comfortable 25 fps in Europe. More on that thing I mentioned at the end of the video here: https://www.patreon.com/standupmaths Here is the sphe
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Generating π from 1,000 random numbers

833 views / 0 likes - added 7 years ago

Watch me calculate pi by rolling 1,000 random numbers on two d120 dice. All in the name of celebrating Pi Day 2017. You can watch all 500 rolls of the dice! https://www.youtube.com/watch?v=ESU4KdRLzu0 Here are some proofs that the probability of two rando
01:27 Popular
The Easiest Brain Teaser that will rack your brain

926 views / 0 likes - added 7 years ago

This is the easiest brain teaser that will rack your brain. 5 people can build 5 houses in 5 days. How long will it take 100 people to build 100 houses? My name is Chris and my passion is to teach math. Learning should never be a struggle which is why I m
01:07 Popular
The Easiest Brain Teaser You Might Get Wrong

945 views / 4 likes - added 7 years ago

Try and solve the easiest brain teaser you might get wrong. The chicken costs $1.00 more than the egg, and together they cost a total of $1.06. How much does the egg cost? My name is Chris and my passion is to teach math. Learning should never be a strugg
01:51 Popular
Test your math IQ - Part 1

823 views / 0 likes - added 7 years ago

Test your math IQ with this fun question. There are two 12 sided coins. Find the measure of the angle when the coins are side by side. Each side of the coin is equal length. My name is Chris and my passion is to teach math. Learning should never be a stru
02:56 Popular
SALTO - Berkeley's leaping robot

902 views / 0 likes - added 7 years ago

Roboticists at UC Berkeley have designed a small robot that can leap into the air and then spring off a wall, or perform multiple vertical jumps in a row, resulting in the highest robotic vertical jumping agility ever recorded. The agility of the robot op
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09:08
Quantum Mechanics - Part 2: Crash Course Physics #44

611 views / 0 likes - added 7 years ago

e=mc2... it's a big deal, right? But why? And what about this grumpy cat in a box and probability? In this episode of Crash Course Physics, Shini attempts to explain a little more on the topic of Quantum Mechanics. *** Get your own Crash Course Physics mu
10:54 Popular
Gummy Food vs Real Food challenge Parent Edition! Giant Gummy Worm Gross Real Food Candy Challenge

6,678 views / 17 likes - added 7 years ago

Gummy Food vs Real Food Parent Edition with Chef Ryan ToysReview! Giant Gummy Worm Gross Real Food Candy Challenge with Ryan's Daddy and Mommy! Some have gross food and some have yummy gummy food! Thanks for watching Ryan's Family version of gummy vs real
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Real Food vs Gummy Food Challenge! Kid React to gross candy world's largest gummy worms

2,533 views / 13 likes - added 7 years ago

Real Food vs Gummy Food Challenge with Ryan ToysReview! Kid React to gross candy world's largest gummy worms and realistic gummy worms. There were also gummy pizza, gummy coke, gummy fries and more! kids candy fun taste test in this gummy or real food cha
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Why Did T Rex Have Such Tiny Arms?

936 views / 2 likes - added 7 years ago

It's easy to assume that every trait - including stubby arms on a terrifying predator - must be beneficial, but the forces of evolution don't really work like that. Thanks to the University of Minnesota for sponsoring this video! http://twin-cities.umn.ed
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10:21 Popular
Hide and Seek Playing Chase with Gus The Gummy Gator! Kids playtime Rainbow Gummy Jello egg!

1,874 views / 9 likes - added 7 years ago

Kids playing Hide and Seek and playing chase with Gus The Gummy Gator and Ryan ToysReview! Great pretend play videos for kids! Click here to see Gus the Gummy Gator: https://www.youtube.com/channel/UCZkSuKAy5kMnZXoxo1PrmJQ Winner gets rainbow Gummy jello
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How to Break A Glass with Sound | Street Science

580 views / 0 likes - added 7 years ago

Street Science | Wednesdays at 10/9c on Science Full Episodes Streaming FREE on Science Channel GO: https://www.sciencechannelgo.com/street-science/ Every object has a natural resonant frequency: the speed it will vibrate if bumped. Wine glasses are espec
10:44 Popular
GIANT GUMMY CANDY MAKER! DIY gummy bear, Gummies worm! Kids Candy Review

2,761 views / 13 likes - added 7 years ago

GIANT GUMMY CANDY MAKER with Ryan ToysReview! This DIY gummies candy let kids make giant gummy bear, gummy worms, gummy fish like the Swedish fish! Ryan's Family also make giant gummy lego man! We love make gummy videos because it's so much fun for the wh
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Are you smart enough to solve this simple brain teaser?

777 views / 0 likes - added 7 years ago

This simple brain teaser is not so easy. A virus is doubling every singe day. On the 67th day the virus has reached its max population. When will the virus reach half of its max population. My name is Chris and my passion is to teach math. Learning should
03:02 Popular
Can you solve the never ending square root?

3,012 views / 0 likes - added 7 years ago

This never ending square root can actually be solve using basic alegra. Find the exact value of this never square root. This problem is much easier than it looks. My name is Chris and my passion is to teach math. Learning should never be a struggle which
04:33 Popular
Can you solve Zeno's paradox? - Brain Teaser

1,633 views / 0 likes - added 7 years ago

Zeno's paradox is one of the most well know math puzzles in history. Is it possible to add an infinite amount of numbers and get an exact value? This is one example of Zeno's paradox. Try and solve this paradox and learn about the Greek philosopher Zeno i
03:29 Popular
Mind blowing brain teaser - Folding paper to the moon

922 views / 1 likes - added 7 years ago

Can you solve this mind blowing brain teaser? How many times can you fold a piece a paper before it reaches the moon? Find out the solution in this brain teaser in this video. My name is Chris and my passion is to teach math. Learning should never be a st
04:55 Popular
Solve the right triangle - Trigonometry Brain Teaser

1,698 views / 0 likes - added 7 years ago

A square is inside of a right triangle. The length of each side of the triangle is 3-4-5. Given this information what are the dimensions of the square? Can you solve this right triangle? My name is Chris and my passion is to teach math. Learning should ne
06:45 Popular
Gummy Food Controller Candy for Kids Taste Test! Family Fun Lego Gummy Candy Review Ryan ToysReview

3,333 views / 13 likes - added 7 years ago

Gummy Food Controller Candy for Kids taste test with Ryan ToysReview! There are Game on Valentine Remote Control Gummy and we compare it to a real remote controller and prank daddy! Ryan melt the gummy and to make Lego Gummy and lego man. Thanks for joini
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Why is a Dollar Called a "Buck"?

734 views / 1 likes - added 7 years ago

→Subscribe for new videos every day! https://www.youtube.com/user/TodayIFoundOut?sub_confirmation=1 →How "Dick" came to be short for 'Richard': https://youtu.be/BH1NAwwKtcg?list=PLR0XuDegDqP2Acy6g9Ta7hzC0Rr3RDS6q Never run out of things to say at the wate
03:51 Popular
Can You Solve This MIT Admissions Question? Geometry Problem, 1869

952 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
10:12 Popular
Pancake Art Machine 3D Printer Food Challenge! Surprise Characters Poop Emoji Kirby Iron man

1,555 views / 4 likes - added 7 years ago

Pancake Art Machine 3D Printer Challenge with Ryan ToysReview! PancakeBot Surprise Characters guess who challenge between Ryan vs Mommy! We print out Kirby, Poop Emoji, and superheroes like Iron Man! The PancakeBot allows you to “print” out pancakes into
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GIANT CHOCOLATE CANDY taste test! Hershey's Kiss, Gold Coins, Peanut Butter Cups Candy Review

2,126 views / 10 likes - added 7 years ago

World's Largest giant chocolate candy taste test with Ryan ToysReview! We found giant Hershey'sKiss, Huge chocolate Gold Coins, Huge Snickers, Giant Reese's Peanut Butter Cups, huge crunch bar, York Patties, and Twix bars! We compare the size of many cand
07:08 Popular
PUCKER POWDER Custom Candy Kit! Sweet and Sour Kids Candy Review! Ryan ToysReview

2,377 views / 12 likes - added 7 years ago

PUCKER POWDER Custom Candy Kit! Kids Candy Review with Ryan ToysReview! The Sweet and sour kids candy comes in three Pucker Powder Candy flavors, Sour Lemonade, Sweet Strawberry, and Sour Fruit Punch! The colorful box it comes in is designed to store and
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GUMMY FOOD VS REAL FOOD CHALLENGE taste test! Kid Fun giant candy review Ryan ToysReview

4,123 views / 28 likes - added 7 years ago

GUMMY FOOD VS REAL FOOD CHALLENGE taste test with Ryan ToysReview! This is such a kid fun giant candy review video with real life size gummy food and real food pizza, hotdog, coca cola, watermelon, hamburger, fries (marshmallow), and corn! The food challe
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Hammerheads Can Hear Injured Fish From a Mile Away

655 views / 0 likes - added 7 years ago

Hammerhead sharks are so attuned to low-frequency sounds, they can hear them from over a mile away. Not only can they tell the distance and direction of their prey, they can even estimate its size. From: HUNTING THE HAMMERHEAD http://bit.ly/2akgsHV
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02:41 Popular
Watch a Piano Talk by Playing it!

721 views / 0 likes - added 7 years ago

A "speaking piano" reciting the Proclamation of the European Environmental Criminal Court at World Venice Forum 2009. Unfortunately it's all in German, but what the piano says is all English, and it's really neat to watch. UPDATE: Astera on hackaday wrote
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The EM Drive: Fact or Fantasy? | Space Time | PBS Digital Studios

576 views / 1 likes - added 7 years ago

Because you demanded it … we break down the EM Drive! Support us on Patreon! https://www.patreon.com/pbsspacetime Get your own Space Time tshirt at http://bit.ly/1QlzoBi Tweet at us! @pbsspacetime Facebook: facebook.com/pbsspacetime Email us! pbsspacetim
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How Do Sharks and Rays Use Electricity to Find Hidden Prey? | Deep Look

646 views / 3 likes - added 7 years ago

When it comes to spotting prey, sharks and rays have a secret sense beyond sight and smell. Tiny goo-filled organs called Ampullae of Lorenzini detect the invisible electric fields produced by all living creatures. DEEP LOOK: a new ultra-HD (4K) short vid
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Easy Puzzle - But can you solve it?

1,429 views / 0 likes - added 7 years ago

Solve this puzzle by cutting the piece of wood into two pieces. Both pieces must fit exactly into the hole. Can you solve this easy puzzle? Watch the video and find out. My name is Chris and my passion is to teach math. Learning should never be a struggle
02:41 Popular
Trick Question - True or False

875 views / 0 likes - added 7 years ago

Think you can answer this simple trick question? Does .9 repeating equal 1? Find the solution in this video. My name is Chris and my passion is to teach math. Learning should never be a struggle which is why I make all my videos as simple and fun as possi
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Test your math IQ - Part 2

690 views / 0 likes - added 7 years ago

Test your math IQ with this fun question. There are ten green socks and 10 blue socks in a basket. You can not see a thing. How many socks would you need to take out of the basket to ensure you had a least a pair? My name is Chris and my passion is to tea
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04:09 Popular
Easy algebra word problem - But can you solve it?

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

Two workers can build a house in 4 days. One worker can build the house by himself in 6 days. How long would it take the other worker to build the house by himself? Can you solve this easy algebra word problem? My name is Chris and my passion is to teach
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Math Challenge - Shrinking Pool Problem

1,198 views / 0 likes - added 7 years ago

Think you can solve this math challenge? Every time a boy jumps into the pool it shrinks by a certain amount. Thy boy jumps into the pool 3 times. You must find the original length of the pool My name is Chris and my passion is to teach math. Learning sho
07:25 Popular
Algebra Word Problem - Factoring

1,710 views / 0 likes - added 7 years ago

Learn how to solve this algebra word problem by factoring. A garden has an area of 84 square feet and the length is 8 feet longer than the width. You must find the dimensions of the garden using factoring. My name is Chris and my passion is to teach math.
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Algebra word problem - System of Equations

1,927 views / 0 likes - added 7 years ago

Solve this fun algebra word problem using a system of equations. If each jar has three cookies, one jar will be empty. If each jar has two cookies, there will be one cookie left over. Use a system of equations to find how many cookies and jars we have. My
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The Power of Mathematical Visualization | The Great Courses

1,076 views / 0 likes - added 7 years ago

https://www.thegreatcoursesplus.com/show/the_power_of_mathematical_visualization?utm_source=US_SocialMedia&utm_medium=SocialMediaEditorialYoutube&utm_campaign=138569 The Power of Mathematical Visualization teaches you these vital problem-solving skills in
04:14 Popular
Bicycle tuning fork - physics of toys // Homemade Science with Bruce Yeany

972 views / 0 likes - added 7 years ago

The front fork off of a bicycle makes a nice addition to a tuning fork set. The frequency of this one is very low, about 54 Hz (vibrations per second). The sound of fork is very deep and the camera does not do a good job of picking it up but otherwise, it
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Homemade bimetallic strips - Thermostat demonstration // Homemade Science with Bruce Yeany

1,180 views / 0 likes - added 7 years ago

Bimetallic strips bend due to the uneven expansion of two bonded metals. In this video, we are taking a look at making what I call bimaterial strips. Aluminum glued to paper will behave the same way as bimetallic strips and can be used to making a light b
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Can You Solve The Diluted Wine Puzzle?

766 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
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Can You Solve The Missing Sock Puzzle?

619 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
03:16 Popular
Can You Solve This 8th Grade Geometry Problem? 75% Got The Wrong Answer

1,005 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.
07:25 Popular
SUPERHERO KID SHARK attack dolphin! Ryan ToysReview T-Shirt Treasure Hunt Surprise Toys Kid Candy

1,596 views / 5 likes - added 7 years ago

Ryan ToysReview as Red Titan Kid Superhero In Real Life season 1 with Shark attack dolphin toy pretend play! Ryan's Family had a family fun time playing dress up with Ryan pretending to fish in a pirate ship, the bad shark attack and bully the toy dolphin
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PET GATOR ATTACK! Playing Chase and Hiding at Playground for Kids Egg Surprise Toys Kids Prank

1,172 views / 1 likes - added 7 years ago

Ryan ToysReview had so much fun playing pet shark attack, this time we played Pet Gator attack! (playing chase and hiding at playground for kids) It's such a family fun activities for kids playing with toy gator because children loves pretend play of chas
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The Many Worlds of the Quantum Multiverse | Space Time | PBS Digital Studios

585 views / 1 likes - added 7 years ago

Is our universe a definitive single reality or is it merely one within an infinitely branching multiverse? Be sure to check out Physics Girl’s Dianna Cowern for more awesome science https://www.youtube.com/c/physicsgirl Get your own Space Time tshirt at
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Can You Solve This Grade 12 Geometry Problem From Australia? The Marshmallow Chocolate Puzzle

912 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
05:27 Popular
Can You Solve The Mind-Bending Self-Counting Sentence Riddle?

961 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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Fair Dice (Part 1) - Numberphile

663 views / 0 likes - added 7 years ago

Probability expert Professor Persi Diaconis (Stanford University) talking about dice. Part 2: https://youtu.be/8UUPlImm0dM Tadashi and Dice: https://youtu.be/zzKGnuvX6IQ More dice videos: http://bit.ly/Dice_Videos More Persi Diaconi videos: http://bit.ly/
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Fair Dice (Part 2) - Numberphile

501 views / 0 likes - added 7 years ago

Probability expert Professor Persi Diaconis (Stanford University) talking about dice. Part 1: https://youtu.be/G7zT9MljJ3Y More dice videos: http://bit.ly/Dice_Videos More Persi Diaconi videos: http://bit.ly/Persi_Videos Diaconis/Keller paper on fair dice
04:30 Popular
Adults Are Arguing About This 3rd Grade Math Problem

894 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
07:49 Popular
Can You Solve The Viral 9 = 72 Puzzle? The Correct Answer Explained

1,079 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
07:47 Popular
Can You Solve The Probability The Newborn Is A Boy? Many Fail This Interview Question

828 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
02:45 Popular
The Day After Tomorrow Is Yesterday Riddle. Can You Solve It?

710 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
09:11 Popular
Can You Solve The Rectangle Ratio Puzzle? The Surprising Answer

855 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
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What's The Best Soup Can Size? The Optimal Cylinder Puzzle

803 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
03:39
Can Dogs And Cats Be Left-Handed?

652 views / 1 likes - added 7 years ago

10% of human are left-handed, but what about animals? Join DNews as we explore how apes, cats, and even kangaroos might have handedness. Big thanks to our sponsor for supporting DNews! Check out Monster's reimagined boombox at http://www.themonsterblaster
07:40 Popular
Can You Solve The 21 Flags Game From Survivor?

892 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
05:57 Popular
Can You Solve This 6th Grade Geometry Problem From Singapore? The Area Of A "Claw"

1,131 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
03:48 Popular
Can You Solve This Harvard Admissions Question? Algebra Problem, 1869

1,478 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
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Can You Solve The Viral 11x11 = 4 Puzzle? The Correct Answer Explained

3,057 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
07:39 Popular
Can You Solve The Alien Extinction Riddle? Hard Job Interview Question

871 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
11:57
The Wallis Formula For π

586 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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Can You Solve The Viral Matchstick Puzzle 6 + 4 = 4?

3,485 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
02:21 Popular
Trick Question - Test your math skills

711 views / 0 likes - added 7 years ago

Find the maximum and minimum values of X in this trick question. Each value of X must satisfy the given inequality. Test your math skills and have fun with this trick question. My name is Chris and my passion is to teach math. Learning should never be a s
03:04 Popular
Trick Question - Find the missing dollar

759 views / 1 likes - added 7 years ago

Trick question! Three friends are overcharged for their hotel room. The hotel decides to refund the difference. After the hotel issues the refund one dollar has mysteriously disappeared. Where is the missing dollar? Find the solution to this trick questio
02:51 Popular
The Horse Horseshoe Boots Viral Algebra Problem - The Correct Answer Explained

1,728 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:
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"Impossible" Logic Puzzle - How Many Liars Are At The Party?

814 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
08:05 Popular
Can You Solve The Hardest Easy Geometry Problem?

1,274 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
07:25 Popular
Can You Solve The Race To December 31 Riddle?

717 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
05:33 Popular
What is 6÷2(1+2) = ? The Correct Answer Explained

887 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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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
10:20 Popular
SURPRISING Coin Flipping Probability - Flips To HH Versus HT

876 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
04:53 Popular
Can You Solve The Friendship Riddle?

1,309 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
09:50 Popular
Can You Solve This 6th Grade Geometry Problem From China?

1,263 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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03:56 Popular
Will We Ever Stop Breaking World Records?

768 views / 0 likes - added 7 years ago

Every year, it becomes more difficult to break a world record. Is there a limit to human capability? Why Sports Are Unfair - http://bit.ly/1lgjZcl Sign Up For The Seeker Newsletter Here - http://bit.ly/1UO1PxI Read More: Have We Reached The Athletic Limit
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04:37 Popular
Can We Mathematically Prove Aliens Exist?

985 views / 2 likes - added 7 years ago

What is our probability of finding aliens and how close are we to encountering them?? The answer lies somewhere in these 2 equations. Could Life On Earth Have Come From A Comet? - http://bit.ly/2aXZC0a Sign Up For The Seeker Newsletter Here - http://bit.l
07:21 Popular
Can You Solve The Magical Pond Puzzle?

1,037 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
06:24 Popular
Can You Solve The Chameleon Riddle?

1,011 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
05:26
Can You Solve The Red Ball Lottery Puzzle?

673 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
01:49 Popular
This Matchstick Puzzle Is

859 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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04:00
Why Do We Need SO MANY Remote Controls?

475 views / 0 likes - added 7 years ago

We all have many remotes for many devices; why is it so difficult for manufacturers to create one remote that can control all our devices? How Does Wireless Charging Work? - http://bit.ly/28NAkUL Sign Up For The Seeker Newsletter Here - http://bit.ly/1UO1
05:11 Popular
What Is Obesity? - Mia Nacamulli

875 views / 1 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/what-is-obesity-mia-nacamulli Obesity is an escalating global epidemic. It substantially raises the probability of diseases like diabetes, heart disease, stroke, high blood pressure, and cancer. But what is the
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Can YOU Solve It? This Question Stumped 75% Of PhD Economists

610 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
05:57
How To Split A Cake Fairly Using Math

697 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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13:40 Popular
BEST Way To Play Memory (Card Game) - WIN Using Math

955 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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03:25 Popular
Can You Solve This? AA + BB + CC = ABC

2,485 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
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This SAT Math Question Has A Mistake

669 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
04:22 Popular
Impossible Algebra Problem

1,244 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
03:31 Popular
How Logical Are You? The Irrationality Illusion Tricks Most

805 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
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How Warren Buffett Tried To Trick Bill Gates In A Dice Game

688 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
06:57
When Is Christmas? Mentally Convert Date To Day Of The Week

532 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
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Moving Faster Than The Speed Of Light? Special Relativity Velocity Addition Formula

687 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
07:10
TOUGH Interview Question - Ways To Give 11 Coins To 3 People

614 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
07:52 Popular
Find The 10 Digit Number Classic Puzzle And Solution

891 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:
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Can You Make 4 Triangles From 6 Matches?

986 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
06:24 Popular
The Seemingly Impossible Escape Logic Puzzle

1,454 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
02:57 Popular
Viral Facebook Math Problem

1,293 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
04:52 Popular
Can You Solve The Two Rope Puzzle?

716 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
03:33 Popular
Can You Solve This Intelligence Test? Viral Facebook Puzzle

744 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
01:57 Popular
I Will Read Your Mind - Math Magic Trick

1,257 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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03:09
Can You Solve The Marriage Logic Problem? 80% Fail

680 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
02:57 Popular
Can You Solve This Crazy Equation? Ramanujan's Radical Brain Teaser

1,099 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
08:27
Can You Solve The 3 Cards Riddle?

681 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
05:09 Popular
Can You Solve The Snake Eyes Probability Riddle?

846 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
03:28 Popular
Flower Math Problem - Adults Stumped By Question For Kids In China

1,397 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
04:13 Popular
Adults Stumped By Geometry Problems For 10 Year Olds. Can You Solve Them?

846 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
02:37 Popular
Adults Stumped By Maths Questions For 15 Year Olds. Can You Solve Them?

800 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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How Do We Monitor All The Planes In The Sky?

530 views / 0 likes - added 8 years ago

With so many planes in and out of the skies each day, how is air travel kept safe? Here's more on the technology behind air traffic control. What Makes Airplanes Light Enough To Fly? ►►►► http://bit.ly/1O0nwJx Sign Up For The Seeker Newsletter Here ►►►► h
02:05
The High Road | Ninjago | Cartoon Network

675 views / 1 likes - added 8 years ago

Ronin is in hot pursuit of Nya and Kai - and unfortunately for the Ninjas, he's got an unfair advantage. CN GAMES: http://bit.ly/CNGames SUBSCRIBE: http://bit.ly/109Y6wq WATCH MORE: http://bit.ly/24BwQHH About Lego Ninjago: Lego Ninjago: Masters of Spinji
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Amazing Water & Sound Experiment #2

818 views / 0 likes - added 8 years ago

Add me on Facebook. (click LIKE on Facebook to add me) https://www.facebook.com/158773774166995 Download the song in this video Song Name: Monolith iTunes: https://itunes.apple.com/us/album/monolith-single/id596457486 Amazon: http://www.amazon.com/s/ref=n
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04:26
Why Does The Sound Of Chewing Drive Us Nuts?

491 views / 0 likes - added 8 years ago

Some people can’t stand the sound of others chewing, but researchers believe this annoyance might be more than just a pet peeve. Can Low Frequency Sound Waves Make You Sick? ►►►► http://bit.ly/1TrynbB Sign Up For The TestTube Newsletter Here ►►►► http://b
04:14 Popular
How Radiation Changes Your DNA

1,009 views / 0 likes - added 8 years ago

Radiation is all around us and a part of everyday life. But what exactly is it and what does it do to our bodies? Watch the premiere of Life After: Chernobyl, Tuesday, April 26 at 10/9c on Animal Planet! Sign Up For The TestTube Newsletter Here ►►►► http:
01:58 Popular
How Do Vending Machines Detect Fake Coins?

869 views / 1 likes - added 8 years ago

This machine can decipher coins with pinpoint accuracy. Light sensors measure the size while electromagnets detect the metal type of the coin. MACHINES: HOW THEY WORK Thursdays 10/9c on Science http://www.sciencechannel.com/tv-shows/machines-how-they-work
03:56
What Your Farts Say About Your Health

604 views / 1 likes - added 8 years ago

We all do it, but why exactly do we fart? And what can farting tell us about our health? Is it Dangerous to Hold in Your Farts? ►►►►http://bit.ly/1WqnxrL Sign Up For The TestTube Newsletter Here ►►►► http://bit.ly/1myXbFG Read More: Why We Need a Better W
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Shipwreck From Explorer Vasco Da Gama's Fleet Discovered

626 views / 0 likes - added 8 years ago

After 18 years of research, excavations and archaeological analysis, National Geographic grantee David Mearns has successfully discovered one of Vasco da Gama's ships lost at sea in 1503 off the coast of present-day Oman. Together with the Oman Ministry o
04:31 Popular
Can You Solve The Frog Riddle? - Derek Abbott

1,724 views / 2 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/can-you-solve-the-frog-riddle-derek-abbott You’re stranded in a rainforest, and you’ve eaten a poisonous mushroom. To save your life, you need an antidote excreted by a certain species of frog. Unfortunately, on
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04:19
Cousin Fal's Shape Collection | Geometry | Early Math | Khan Academy

694 views / 0 likes - added 8 years ago

Learn how to classify shapes based on their number of sides, number of corners, and side-lengths. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-geometry-topic/cc-early-math-shapes/e/n
04:31 Popular
Counting American Coins | Measurement And Data | Early Math | Khan Academy

738 views / 0 likes - added 8 years ago

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-measure-data-topic/cc-early-math-money/v/counting-dollars?utm_source=YT&utm_medium=Desc&utm_campaign=EarlyMath Watch the next lesson: htt
03:18 Popular
Counting Dollars | Measurement And Data | Early Math | Khan Academy

717 views / 0 likes - added 8 years ago

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-measure-data-topic/cc-early-math-money/v/counting-dollars?utm_source=YT&utm_medium=Desc&utm_campaign=EarlyMath Watch the next lesson: htt
04:27 Popular
How Close Are We To An Invisibility Cloak?

851 views / 3 likes - added 8 years ago

Invisibility cloaks seem to be science fiction, but science is making them a reality. Don't miss Telescope premiering Feb. 20 at 9/8c on Discovery! How Brain Waves Can Control Physical Objects ►►►►http://bit.ly/1XvLX1M Sign Up For The TestTube Newsletter
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03:59 Popular
Can Low Frequency Sound Waves Make You Sick?

827 views / 1 likes - added 8 years ago

Loud noises can give you a headache, but scientists think it’s the sounds we can’t even hear that are making us sick. What’s infrasound? The Coolest Things Sound Waves Do ►►►► http://bit.ly/1QWKVsW Sign Up For The TestTube Newsletter Here ►►►► http://bit.
05:37 Popular
Who Shares Your Birthday?

859 views / 2 likes - added 8 years ago

Tweet this ⇒ http://bit.ly/OKTBSbday Share on FB ⇒ http://bit.ly/OKTBSbdayFB Click here if you’d like to subscribe: http://bit.ly/iotbs_sub ↓ More info and sources below ↓ In case you have a strange new desire to get an IOTBS shirt: http://store.dftba.com
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03:10 Popular
Don't Checkmate - Brain Teaser

790 views / 0 likes - added 8 years ago

Don't checkmate the black king. In this brain teaser you must find one move for white which will not result in immediate checkmate for the black king. I also have a bunch of other fun brain teasers as well. My name is Chris and my passion is to teach math
02:04 Popular
Guess The Diagonal - Brain Teaser

1,097 views / 0 likes - added 8 years ago

Try to solve this brain teaser in less than a minute. You must guess the diagonal inside of the circle. There is enough information given which allows you to find the length of the diagonal in less than a minute. My name is Chris and my passion is to teac
01:51 Popular
Crossing The River - Brain Teaser

931 views / 0 likes - added 8 years ago

Try to solve this fun brain teaser. Cross the river with all of the zombies and humans. The boat can only fit two at a time. Also there can never be more zombies than humans. My name is Chris and my passion is to teach math. Learning should never be a str
04:09 Popular
Counterfeit Coins - Brain Teaser

892 views / 2 likes - added 8 years ago

Find the counterfeit coins in one of the eight bags! You may only use the weight scale once in this brain teaser. How do you know which bag has the counterfeit coins? I also have a bunch of other fun brain teasers as well. Heaven and hell - Brain Teaser h
06:35 Popular
Bisecting Yin And Yang - Brain Teaser

979 views / 0 likes - added 8 years ago

Can you bisect yin and yang using a straight line? Find the solution to this brain teaser in this video. I also have a bunch of other fun brain teasers as well. Heaven and hell - Brain Teaser https://www.youtube.com/watch?v=YOgKI0HWCnA Two burning ropes -
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Why Do Men Have Deeper Voices?

687 views / 1 likes - added 8 years ago

Cristen explains why male humans' voices generally get lower than female humans' during puberty. Learn more at HowStuffWorks.com: http://health.howstuffworks.com/sexual-health/male-reproductive-system/male-puberty2.htm Share on Facebook: https://goo.gl/Hg
03:40 Popular
Two Burning Ropes - Brain Teaser

786 views / 0 likes - added 8 years ago

Two burning ropes are needed to measure 45 minutes exactly. Each rope takes exactly one hour to burn, but they don't burn at a constant rate. Each rope is made of a different material and burns differently from the other. How do we measure 45 minutes exac
04:10 Popular
Can I Get My Face On Currency?

1,495 views / 0 likes - added 8 years ago

Forget the normal 15 minutes of fame – the real ticket to immortalizing your legacy is to get your face on currency. But how does it work? Join Cristen to learn more. Learn more at HowStuffWorks.com: http://money.howstuffworks.com/currency.htm Share on Fa
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02:43 Popular
Is WiFi Safe?

842 views / 2 likes - added 8 years ago

You've probably heard that wireless internet (WiFi) is dangerous. But is it true? Lauren breaks it down. Learn more at HowStuffWorks.com: http://computer.howstuffworks.com/wireless-network1.htm Share on Facebook: Share on Twitter: Subscribe: http://goo.gl
03:17 Popular
How Do Microwave Ovens Work?

1,623 views / 0 likes - added 8 years ago

They’re convenient, ubiquitous and easy to use. But how do these things work, exactly? What do people mean when they say a microwave cooks food inside out? Join HowStuffWorks as we answer engaging, everyday science questions, demystifying the amazing worl
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02:57 Popular
Banana Proportionality | Rated And Proportional Relationships | 7th Grade | Khan Academy

1,651 views / 0 likes - added 8 years ago

A proportionality problem about eating bananas Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-ratio-proportion/cc-7th-proportional-rel/e/analyzing-and-identifying-proportional-rela
03:19 Popular
Heaven And Hell - Brain Teaser

955 views / 1 likes - added 8 years ago

Fun brain teaser in which you have to choose between two doors. One of the doors leads to heaven and the other door leads to hell. You are allowed to ask the guards one question. What is one question that would guarantee certainty of choosing the door to
02:54 Popular
The NEW Periodic Table Song (Updated)

1,022 views / 1 likes - added 8 years ago

Download on ITUNES: http://bit.ly/12AeW99 Hey friends - we wanted to update a few things in our video to be more accurate and appropriate for everyone. And why not try and memorize this song all over again?! Thanks for all your support through the years,
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Seth Shostak: ET Is (probably) Out There — Get Ready

516 views / 0 likes - added 8 years ago

SETI researcher Seth Shostak bets that we will find extraterrestrial life in the next twenty-four years, or he'll buy you a cup of coffee. At TEDxSanJoseCA, he explains why new technologies and the laws of probability make the breakthrough so likely — and
04:55 Popular
Fall As You Know It Is Disappearing

744 views / 0 likes - added 8 years ago

Climate change is slowly taking away our seasons. The first to go? Fall. Why Do People Love Pumpkin Spice Lattes So Much? ►►►► http://dne.ws/1QAKByP DNews Live Tickets Here ►►►► http://dne.ws/1Fa2OCh Read More: Fall of fall: The mellow season of autumn is
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Movie Ticket Proportionality | 7th Grade | Khan Academy

1,009 views / 0 likes - added 8 years ago

When going to the movies, is the price you pay proportional to the number of tickets you buy? Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-ratio-proportion/cc-7th-proportional-re
02:39 Popular
Proportionality Between Side Length And Perimeter | 7th Grade | Khan Academy

844 views / 0 likes - added 8 years ago

Is the perimeter of a square proportional to the side length of the square? Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-ratio-proportion/cc-7th-proportional-rel/e/analyzing-and-
03:46 Popular
Testing Whether Area Is Proportional To Side Length | 7th Grade | Khan Academy

1,182 views / 0 likes - added 8 years ago

Is the volume of a square proportional to the side length of the square? Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-ratio-proportion/cc-7th-proportional-rel/e/analyzing-and-ide
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ET Is (probably) Out There -- Get Ready - Seth Shostak

595 views / 0 likes - added 8 years ago

SETI researcher Seth Shostak bets that we will find extraterrestrial life in the next twenty-four years, or he'll buy you a cup of coffee. At TEDxSanJoseCA, he explains why new technologies and the laws of probability make the breakthrough so likely -- an
10:36 Popular
Money And Finance: Crash Course Economics #11

850 views / 1 likes - added 8 years ago

So, we've been putting off a kind of basic question here. What is money? What is currency? How are the two different. Well, not to give away too much, but money has a few basic functions. It acts as a store of value, a medium of exchange, and as a unit of
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Colorful Coins - Sick Science! #193

1,195 views / 0 likes - added 8 years ago

Find out what is happening here: http://www.stevespanglerscience.com/lab/experiments/colorful-coins If you've ever needed to clean a coin like a nickel or a dime, you might have used vinegar. That's a perfect combination, unless you forget to dry the vine
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Coin Tower - Sick Science! #205

730 views / 0 likes - added 8 years ago

Check out cool science kits and toys: http://www.stevespanglerscience.com/ When it comes to scientific muses, Sir Isaac Newton is definitely near the top of our list. Our favorite laws to break involve physics, movement, and motion! That’s why we came up
02:48 Popular
How To Make A Digital Clock

849 views / 0 likes - added 8 years ago

How DO you make a digital clock? Hosted by: Michael Aranda ---------- Dooblydoo thanks go to the following Patreon supporters -- we couldn't make SciShow without them! Shout out to Justin Ove, Justin Lentz, David Campos, Chris Peters, Fatima Iqbal, and Li
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1:56:43 Popular
Blaze Of Steel: Explosive Chemistry - With Andrew Szydlo

758 views / 0 likes - added 8 years ago

Andrew Syzdlo, chemist and school teacher, explores the chemistry of iron and steel. Featuring cool science experiments, explosions and pyrotechnics, this inspiring teacher challenges our perception of these metals' permanence. Subscribe for regular scien
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Why Insects Love Summer – Flight, Fights And Booze

607 views / 0 likes - added 8 years ago

Have you ever wondered what happens when insects get drunk? Can you tell the temperature by the frequency of a cricket’s chirps? Do you know what temperature a butterfly has to be to take off? Kate buzzes around the science of summer insects. Subscribe fo
07:55 Popular
Confidence Intervals - Using T Distribution

726 views / 0 likes - added 8 years ago

Learn how to compute confidence intervals using a t-distribution in this easy to follow statistics video. I also provided the links for my other statistics videos as well Confidence Intervals - with 'z' value https://www.youtube.com/watch?v=lwpobQmUTd8 Hy
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Confidence Intervals - Statistics

789 views / 0 likes - added 8 years ago

Learn how to compute confidence intervals in this easy to follow statistics video. I also provided the links for my other statistics videos as well Confidence Intervals - with 't' value https://www.youtube.com/watch?v=UmAJJtEo6cQ Hypothesis Testing - http
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Meditation Changes Your Brain For The Better, Even If You're Not A Monk

735 views / 0 likes - added 8 years ago

You don't have to become a monk to learn from one, says Dr. Wendy Suzuki, professor of neural science and psychology at New York University. Research into how meditation affects the brain is conclusive: Meditating immediately changes the frequency of your
09:16 Popular
Quantum Entanglement & Spooky Action At A Distance

877 views / 0 likes - added 8 years ago

Does quantum entanglement make faster-than-light communication possible? What is NOT random? http://bit.ly/NOTrandoVe First, I know this video is not easy to understand. Thank you for taking the time to attempt to understand it. I've been working on this
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06:55 Popular
Beatboxing In Slow Motion - Smarter Every Day 109

890 views / 3 likes - added 8 years ago

Tweet this video: http://bit.ly/SlowMoBeatboxing Post to Facebook: http://bit.ly/SlowMoBeatbox Click to View Flula's SlowMo Video: http://bit.ly/FlulaLips ⇊⇊⇊ More info: ⇊⇊⇊ My favorite Flula Video: http://bit.ly/FLULACars It's pretty clear to me that Flu
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Is Climate Change Just A Lot Of Hot Air?

1,093 views / 3 likes - added 8 years ago

Check out www.lynda.com/minuteearth for 10 days of free online courses http://www.lynda.com/ Illustrations by: Jesse Agar - https://www.youtube.com/user/ThisPlaceChannel Thanks also to our Patreon patrons: - Jeff Straathof - Mark - Maarten Bremer - Today
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10:41 Popular
Muscles, Part 2 - Organismal Level: Crash Course A&P #22

1,386 views / 1 likes - added 9 years ago

Hank calls in a friend to do his push ups for him today to explain how skeletal muscles work together to create and reverse movements. Hank and Claire also demonstrate the role size plays in motor units, the three phase cycle of muscle twitches, and how t
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When Will We Run Out Of Names?

818 views / 0 likes - added 9 years ago

Vsauce is nominated for a Webby in Science & Education! You can support learning online by voting for Vsauce or any of the FANTASTIC nominees here: http://pv.webbyawards.com/2015/online-film-video/video-channels-and-networks/science-education THANKS!! SOU
14:07 Popular
STAR TREK: VOYAGER CAKE - Ft. Neil DeGrasse Tyson - NERDY NUMMIES

933 views / 2 likes - added 9 years ago

Today I made Tuvok's cloaking frequency cake from Star Trek Voyager with my special guest, Neil deGrasse Tyson! I really enjoy making nerdy themed goodies and decorating them. I'm not a pro, but I love baking as a hobby. Please let me know what kind of tr
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04:10 Popular
The Last Banana: A Thought Experiment In Probability - Leonardo Barichello

2,084 views / 1 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/the-last-banana-a-thought-experiment-in-probability-leonardo-barichello Imagine a game played with two players and two dice: if the biggest number rolled is one, two, three, or four, player 1 wins. If the bigges
10:24 Popular
Probability Of Making 2 Shots In 6 Attempts

764 views / 0 likes - added 9 years ago

Probability of making 2 shots in 6 attempts
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Free Throw Binomial Probability Distribution

825 views / 0 likes - added 9 years ago

Free throw binomial probability distribution
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Experimental Probability

1,460 views / 0 likes - added 9 years ago

Experimental probability
07:19 Popular
Frequency Tables And Dot Plots

770 views / 0 likes - added 9 years ago

Frequency tables and dot plots
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Probability From Compound Sample Space

669 views / 0 likes - added 9 years ago

Probability from compound sample space
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Constructing Probability Model From Observations

779 views / 0 likes - added 9 years ago

Constructing probability model from observations
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Making Predictions With Probability

786 views / 0 likes - added 9 years ago

Making predictions with probability
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Capitalism and the Dutch East India Company: Crash Course World History 229

1,183 views / 1 likes - added 9 years ago

Want to help keep CrashCourse going? Consider becoming a Patron and help us keep making awesome content for such awesome people. SUBBABLE SUBSCRIBERS READ FURTHER↓ https://www.patreon.com/crashcourse In which John Green teaches you about the Vereenigde Oo
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Sesame Street: Tyra Banks Sings the Alphabet

633 views / 0 likes - added 9 years ago

It's kind of unfair to go around calling the alphabet the ABC's. What about the letter Z? Doesn't he deserve some credit? He's all the way at the end of the alphabet always waiting patiently through all the other consonants and every single vowel and some

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