Embed Notice

TIL that the human body glows in visible light, but the glow is 1,000 times weaker than the human eye can detect. Scientists captured this faint bioluminescence using ultra-sensitive cameras and found that the glow fluctuates throughout the day, peaking in the late afternoon and lowest at night.

https://www.theguardian.com/science/blog/2009/jul/17/human-bioluminescence
#til #todayilearned
https://www.reddit.com/r/todayilearned/comments/1hqshwb/til_that_the_human_body_glows_in_visible_light/