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Physics Girl
How do touchscreens work?
Season 2
Episode 3
How does a touchscreen work? Why can you text with your finger, but not with a q-tip? The physics of smartphones is a complicated and amazing mixture of engineering, physics, electronics and computer science.
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5:47
Pi can be calculated using a random sample of darts thrown at a square and circle target.
6:35
What are the scientific reasons that certain sports attract tall or short athletes?
6:11
Learn how to make antibubbles and the science behind these fun, unusual spheres.
4:58
This math brainteaser challenges you to find a simple solution to a complex problem!
7:48
How an 8000V electromagnet can be used to shrink a quarter.
9:04
Would you take a trip to Mars knowing the risks? What if it were a one way trip?
7:55
Watch a soda can rip itself apart in a fiery explosion!
5:44
How do you take copper wire, a battery and magnets and make electric train?