Curated Video
Math Magic Trick: Guessing A Crossed Out Digit
Ask a friend to select a secret number. Tell them to multiply the number by 9. Let them cross out one of the digits (except 0), and then add up the remaining digits. You can guess which number was crossed out every time! Here is why....
Curated Video
Game Theory Puzzle: The Race To 15
I have seen this puzzle in a few places. Most recently I came across it in Peter Winkler's "Mathematical Puzzles: A Connoisseur's Collection" http://amzn.to/1DcPE4V The Race to 15 Game Theory Puzzle. Alice and Bob take turns selecting...
Curated Video
Can You Solve A "Genius" Math Riddle From The Movie "Little Man Tate"?
What is a number that when divided by the product of its digits the quotient is 3, and if you were to add 18 to the number the digits would be inverted? The scene from Little Man Tate (1991): http://www.youtube.com/watch?v=pfJVDiX3Bt4 If...
Curated Video
Make A 4x4 Magic Square From Your Birthday!
I have made a website so you can automatically generate your 4x4 birthday magic square: http://mindyourdecisions.com/MagicSquare.html A birthday magic square has all rows, columns, diagonals, and most 2x2 blocks add to the same number....
Curated Video
Amazing Math Trick Schools Don't Teach - Egyptians/Russian Peasant Method
You can multiply two numbers if you know how to double, halve, and add up numbers. This is really interesting: basically the Egyptians were using binary multiplication! Watch the video to see how it works. READ why this method works:...
Curated Video
Interior Angles | Geometry & Measures | Maths | FuseSchool
In this video we are going to look at the angles in polygons… the sum of all interior angles and the size of one interior angle. In another video we will look at exterior angles. Before we start, you should already know the names of...
storybooth
Living with ADHD
By Mack | Ready to "wear it out loud?” Merch store open, SHOP NOW: http://bit.ly/storybooth-merch | Subscribe: http://bit.ly/sub2storybooth | Record your story @ https://storybooth.com or our iPhone app for a chance to get animated....
Programming Electronics Academy
Using tabs to organize code with the Arduino IDE
Did you know in the Arduino IDE that you can organize your code using different tabs? In this lesson, you’re gonna learn how to add these tabs, how they get organized in the Arduino sketch folder and how to use them in order to better...
Curated Video
8+ Vocabulary for Mirrors for IELTS Speaking
Today we’ll explore 8+ vocabulary for mirrors for IELTS Speaking Part 1. There are some odd questions in IELTS Speaking Part 1! ‘Mirrors’ is a great example of one of these odd question sets, that you probably don’t talk about in your...
Curated Video
What is Narcolepsy and What to Do About It?
What is narcolepsy? It’s a neurological disorder that results when your brain is unable to regulate your sleep wake cycle. In this video I will discuss how to recognize narcolepsy and how it is treated. Two of the classic symptoms are...
Curated Video
Antibiotics
Antibiotics… one of the greatest discoveries of the 20th century. You’ve probably taken them at some point during your life… maybe for a throat or ear infection? About 20 doses of antibiotics are prescribed per 1,000 people every day...
Mr. Beat
The American Presidential Election of 1868
The 21st Presidential election in American history took place on November 3rd, 1868. It was the first one to take place after the Civil War, and the first to take place during a period historians refer to as the Reconstruction Era. The...
Curated Video
Quadrilaterals
What do these shapes all have in common?They are all 2 dimensional, 4 sided-shapes, with 4 angles.These are known as quadrilaterals. Quad means four Lateral means sidesIn this video we are going to look at the properties of...
Curated Video
Antibiotics | Health | Biology | FuseSchool
Antibiotics | Health | Biology | FuseSchool Antibiotics… one of the greatest discoveries of the 20th century. You’ve probably taken them at some point during your life… maybe for a throat or ear infection? About 20 doses of antibiotics...
Curated Video
Why video game doors are so hard to get right
Doors are hard because all of game development is hard. Subscribe and turn on notifications (🔔) so you don't miss any videos: http://goo.gl/0bsAjO Doors are so common in the real world that you probably don’t stop to think about how to...
Teacher's Pet
Hydrogen Ions and Acidity
Learn about the basis of the pH scale and how to do some pH and pOH calculations in this video! Transcript _____________________ When water gains a hydrogen ion, it becomes hydronium, H3O+. When water loses a hydrogen it becomes...
NileRed
How to make Alcohol at Home (Ethanol)
REUPLOADED DUE TO SOUND ISSUE. Note: For a sugar wash, you probably don't need to sterilize anything. Just wash it with soap and water. The presence of other microbes can alter the taste if you plan to drink it. This is a very basic way...
Curated Video
How scientists colorize photos of space
Yes, that’s a black and white photo. Become a Video Lab member! http://bit.ly/video-lab The Hubble Space Telescope only takes photos in black and white. To make those beautiful space photos you’ve probably seen, scientists add the color...
Big Think
Why libertarianism is a marginal idea and not a universal value | Steven Pinker
Is conflict humanity's natural state? Could we ever agree on a set of values? The knee-jerk response for any student of history would be 'no', but the data tells a different story. Psychologist and author Steven Pinker offers proof in...
Tom Scott
The Mushroom Cloud Over Britain: RAF Fauld and the Hanbury Crater
Near the village of Hanbury is RAF Fauld. Once it was a munitions dump: now it's a crater. Here's why. (I'm indebted to authors, archivists and aerial crews for this video: here's a full bibliography and list of image credits!) DOCUMENTS...
NPR
Future Humans: How Many Of Us Will There Be? | Goats & Soda | NPR
Over half of the 7.5 billion humans on Earth live in just seven countries. Sixty percent of us live in Asia. And population growth will probably stop around the year 2100. Watch to find out more facts about humans from NPR's resident...
Curated Video
Liquid Water Isn't Flowing On Mars
In 2015, scientists announced something incredible: they had strong evidence that there was liquid water flowing on Mars today. The implications were huge for the possibility of alien life and resources for future crewed missions to the...
Curated Video
Quadrilaterals | Geometry & Measures | Maths | FuseSchool
What do these shapes all have in common?They are all 2 dimensional, 4 sided-shapes, with 4 angles.These are known as quadrilaterals. Quad means four Lateral means sidesIn this video we are going to look at the properties of...
Infognostica
Buddhism explained: What is Emptiness?
What did Buddha mean when he talked about emptiness? It's often thought to be a depressing or nihilistic thing, but the original meaning of it couldn’t be further. What is seen to be empty are our thoughts about reality and ourself....