Episode

BrainStuff

HowStuffWorks

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

Chart Positions

Science & Medicine 12
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.

What Causes Red Eye In Photos?

October 17th, 2016

Episode 1054 of 1067 episodes

How can a camera's flash make your eyes glow red? Tune in to learn how it works -- and how to prevent it.

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