Episode

BrainStuff

HowStuffWorks

Science & Medicine, Natural Sciences, Society & Culture, Technology

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Science & Medicine 13
Natural Sciences 4

Whether the topic is popcorn or particle physics, you can count on BrainStuff to explore -- and explain -- the everyday science in the world around us.

Could I see a flashlight beam from Earth on the moon?

February 3rd, 2010

Episode 526 of 1068 episodes

If you shone a flashlight beam from Earth, would you be able to see it from the moon? It depends. Find out why -- and get a lesson in how light works -- in this episode of BrainStuff.

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