2 min listen
How does red eye in photographs work?
FromBrainStuff
ratings:
Length:
2 minutes
Released:
Jul 31, 2015
Format:
Podcast episode
Description
The flash of a camera is bright enough to cause a reflection off the human retina -- the red we see in these photos comes from the blood vessels in the eye. Learn more about red eyes and cameras in this HowStuffWorks podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers
Released:
Jul 31, 2015
Format:
Podcast episode
Titles in the series (100)
What is the Difference Between a Carat and a Karat?: Carats are used for diamonds, while karats are used for gold. Learn more about the difference between carats and karats in this HowStuffWorks podcast. by BrainStuff