If cold isn't real, then how can I feel it? Subscribe to It's Okay To Be Smart: http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/jtotheizzoe...
========== [MUSIC]It is currently -1 degree Celsius, it is raining
and I am cold, really, really cold, at leastI think I am. Technically speaking there's
no such thing as cold, it's not a substance,you can't literally feel cold, it doesn't
float around in the air around us. When youtouch something frigid, there's nothing called
"cold" in there. It's what isn't there thatreally matters.[MUSIC]Matter it makes up air, ice, human beings,
everything. It's composed of atoms, and nomatter how solid something feels, those atoms
are jiggling around like crazy.Temperature is really a measure of all that
jiggling, the kinetic energy of anything’satoms. The scale of that temperature ranges
from lead ions smash...