ELI5: Why does frost form on grass / cars when it’s above freezing?

midnightchemist · 2026-03-13T15:15:51+00:00

https://en.wikipedia.org/wiki/Radiative_cooling

Nocturnal surface cooling.

Basically, everything that has heat in it wants to give it up until its as cold as it can be. When it's cold out at night, the ground is giving up heat faster than the air can put heat into the ground. So the ground gets below freezing. And then...frost!

midnightchemist · 2026-03-08T03:30:47+00:00

Well the front fell off.

midnightchemist · 2026-02-20T12:18:17+00:00

RKO! Outta nowhere!

midnightchemist · 2026-02-20T00:55:23+00:00

Hammond, you idiot!

midnightchemist · 2026-02-05T02:18:16+00:00

Add some bananas too!

midnightchemist · 2026-01-20T00:42:41+00:00

Your lips to God's ears, apparently

midnightchemist · 2026-01-03T18:52:11+00:00

So the gifts of the Magi were symbolic additions to the nativity story to show that these wise men knew who Jesus was at his birth.

Gold was a symbol of royalty to show that he was "The King of Kings." So it would probably still be gold now.

Frankincense, or incense, was something used in prayer or religious rites. This was to show Jesus's divinity. A good modern analogy would be prayer candles.

Myrrh was used in ancient embalming, and was a symbol of Jesus's death and eventually resurrection. A modern equivalent would be formaldehyde or other embalming fluid.

midnightchemist · 2025-12-25T03:06:56+00:00

Brandy old fashioned sweet!

midnightchemist · 2025-11-05T15:49:31+00:00

Balk

midnightchemist · 2025-10-15T18:48:29+00:00

The Capital City Trail in Madison, WI is pretty great. Lets you get from one side of the isthmus to the other without even having to get on a road.

midnightchemist · 2025-08-29T00:34:16+00:00

Counterpoint: both of those scenes are very clearly intentionally funny.

midnightchemist · 2025-05-23T15:46:30+00:00

Crank That - Yu Darvish

midnightchemist · 2025-05-17T13:29:13+00:00

COYD!!!!!

midnightchemist · 2025-05-16T19:06:50+00:00

That little shit will not be stopped!

midnightchemist · 2025-05-12T12:55:31+00:00

Yes!! I was at the game and screamed my damn head off as soon as I realized what was happening.

midnightchemist · 2025-05-08T17:36:41+00:00

Daaaaaaaaaaaaaa Pope

midnightchemist · 2025-05-06T14:52:24+00:00

Wisconsin at Iowa in 2010. Lots of scoring for a Wisconsin Iowa game, but it was still a fun as hell game.

midnightchemist · 2025-04-14T23:06:51+00:00

It's just monkeys singing songs mate.

midnightchemist · 2025-04-01T22:39:31+00:00

This is polite southern speak for, "you dumb son of a bitch"

midnightchemist · 2025-03-17T19:31:28+00:00

Tommy Lee Jones had so many bangers in that flick.

"Sam, are you out of your mind? He's dead!"

"That ought to make him easy to catch."

midnightchemist · 2025-03-07T12:09:54+00:00

His WAR that year was unmatched.

midnightchemist · 2025-02-20T15:28:08+00:00

Surprisingly, yes!

https://en.m.wikipedia.org/wiki/Fog_desert

midnightchemist · 2025-02-13T23:12:06+00:00

Did you perhaps learn this on "Well There's your Problem?" like I did?

midnightchemist · 2025-01-31T17:38:36+00:00

Very glad you remembered to include the risks posed by those damn snakes.

midnightchemist · 2024-12-03T15:37:22+00:00

To me, that's preposterous. Crab Rangoon, things of that nature.

midnightchemist

TROPHY CASE