Ever wonder why your shadow has a blue tint? ☀️🔵

Added: 2026-05-25

[00:00:00]So those of you out there haven't sat through this, go outside on a sunny day, if you're in Ithaca, New York, where I went to college, there is >> sun There is no sun.

[00:00:08]>> sunny day scheduled in the next 10 years.

[00:00:10]>> Yes. Yeah. Then you make a shadow on something white like my shirt would be good, and you'll see the shadow is gray, to be sure, but it's also ever so slightly light blue.

[00:00:23]And that's because the sun is not the only source of light here on Earth's surface.

[00:00:28]>> Blue sky.

[00:00:30]>> is a source of light.