How do motion sensing lights and burglar alarms work?
What makes bridges strong?
An informative video on an easy level
Thanks to SciShow Kids
This is how a flashlight works:
Spaghetti bridge using different materials
Thanks to James Dyson Foundation
It's hard to believe, but everything in the world is in motion, all the time. Even things that look perfectly still are packed with atoms that are vibrating with energy. Understanding how motion works was one of the great milestones of science and it's credited to the brilliant English physicist Sir Isaac Newton. Here is great introduction:
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