# Educational

## Perfect Games – Numberphile

Do you want to figure out how to get a perfect game? Here is the math behind it in various sports and games. Perfect Games – Numberphile – YouTube.

## How far is a second?

If you think this question doesn’t make sense, check out this video and you will find out why people like to measure distance both in length and time. How far is a second? – YouTube.

## How to Count Infinity

Some infinities are bigger than other infinities and if you want to see the simple 2 minute video to prove it, here it is. How to Count Infinity – YouTube.

## Brown’s Criterion – Numberphile – YouTube

Numberphile shows you a cool mathematical party trick and how to discover any number from 1 to 30 based on the powers of 2 or the Fibonacci numbers.

## Is Time Travel Possible?: Mind Blow

Find out if time travel is possible and what stands in the way of doing it. Is Time Travel Possible?: Mind Blow (Special Edition) – YouTube.

## Numbery Card Trick – Numberphile

Card Tricks are not all about slight of hand and magic. Here is an amazing mathematical card trick that any math wiz can do! Numbery Card Trick – Numberphile – YouTube.

Are you bored on the internet? Here are 21 fun websites, including one which will show you how secure your password is. How Secure is Your Password? And 21 Other DONGs – YouTube.

## Einstein’s Proof of E=mcÂ²

What’s the easiest way to visualize and prove that E=mc^2? It involves a space ship, a cat, and the Doppler effect, so it might not be that easy after all. Einstein’s Proof of E=mcÂ² – YouTube.

## What was up with Pythagoras?

Do you think you know everything about Pythagoras? Think again and check out this video. What was up with Pythagoras? – YouTube.

## Proof Without Words: The Circle

Do you want to learn how to derive the area of a circle with just a chain and a ruler? Here is how. Proof Without Words: The Circle – YouTube.