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Ask a Scientist Video Series

Ask a Scientist Video Series

Why can't you see colors well in the dark? Do fish have eyelids? Why does saltwater sting your eyes? Select a video below to get answers to questions like these and more with our Ask a Scientist video series.

Ask a Scientist: Eyes at Night

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Dr. Cheri Wiggs explains what our eyes do while we sleep and why we can't see colors well in the dark.

Ask a Scientist: Nearsighted or Farsighted

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Dr. Cheri Wiggs talks about what happens to our eyes when we cry and what it means to be nearsighted or farsighted.

Ask a Scientist: Sharks and Barks

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Dr. James Raber answers whether fish have eyelids and if animals get blurry vision.

Ask a Scientist: All Eyes on Animals

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Dr. James Raber answers questions like why all animal eyes don’t look the same and if dogs see the same way humans do.

Ask a Scientist: Underwater Eyes

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Dr. Michael Steinmetz explains why salt water stings our eyes, why it does not sting whales' eyes, and whether opening our eyes in a pool is harmful.

Ask a Scientist: Perfect Vision and Glasses

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This video features Dr. Rachel Bishop explains the concept of "perfect vision," how glasses work, and how we can tell if we need glasses.

Ask a Scientist: Eye Myths and Facts

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Dr. Emily Chew sheds light on common eye-related myths to tell us fact vs. fiction.

Ask a Scientist: Why Did You Become a Scientist?

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This video features Dr. Pat Becerra discussing why she became a scientist and encourages girls who are interested in science to pursue this interest. Created on April 30, 2013.

Ask a Scientist: What Is an Optical Illusion?

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This video features Dr. Matt McMahon describing optical illusions and how they play tricks on our eyes. Created on April 30, 2013.

Ask a Scientist: What Is Color Blindness?

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This video features Dr. Sheldon Miller answering children's questions on colorblindness, whether it can be treated, and how people become color blind. Created on April 30, 2013.

Ask a Scientist: How Did You Become a Scientist?

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This video features Dr. Chris Thomas answering children's questions about how you can become a scientist and the variety of jobs they do. Created on April 30, 2013.

Last updated: June 10, 2022