Sundials

How do

How did people tell time before clocks? Can a shadow tell you what time it is? Why does a

Squeaks broke his watch! Luckily Jessi knows of a handy way to tell time, with a

Learn how to read a

A guided explanation of how the simplest

http://tomscott.com - http://twitter.com/tomscott - http://facebook.com/tomscott A few centuries ago, the arbiter of "local noon" wasn't ...

In this video, I explain how to use a

This video shows how the apparent motion of the Sun across the sky affects the length of a shadow cast by a pole. This can be ...

Join Chelsea in learning about an ancient form of time-telling technology-

The type of

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Use science and math to create a paper

Get 50% off your first month of a monthly club with code KURZGESAGT at https://www.kiwico.com/kurzgesagt This video was ...

Learn how to make a

Bring Ancient Egypt to life! Visit our shop for replica artefacts - perfect for hands-on learning: ...

For thousands of years, people used