A blinding flash of light is one of many effects of flashbang grenades

How do flashbangs work?

Mar 11, 2020

The noise and the bright light.

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Payal Patel, MD, and the host of the Daily Two.

Payal Patel, MD, on the Daily Two

Mar 11, 2020

All about diabetic eye care.

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A man wears goggles to keep his eyes safe at work.

How to keep your eyes safe at work

Mar 10, 2020

Keep your eye on safety.

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The Night Watch

Rembrandt and depth perception

Mar 05, 2020

How his art was affected.

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Night blindness.

Difficulty seeing in the dark

Feb 19, 2020

Blinded by the night.

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A woman with pepper spray.

How does pepper spray work?

Feb 11, 2020

Why it burns.

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