It’s Okay To Be Smart Presents: How To See Time Travel

Time is an illusion; lunch time, doubly so. But cosmic rays—AKA, high-energy radiation charged particles from outer space—are real, and if you have a cloud chamber handy, you can test the theory of relativity while viewing these strange particles. It’s the closest we’re ever going to get to watching time travel—short of a Doctor Who marathon, of course.

Previously in smart!

• How to Measure the Speed of Light With Pizza at Home and Other Important Pizza Science
• Your Space Battle Physics Are All Wrong, and It’s All George Lucas’s Fault
• It’s Okay To Be Smart Explains Some Summer Science

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Victoria McNally

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