Happy Mole Day! No, no, no, not that kind of mole. This mole — a concept used in chemistry to count molecules, atoms, or anything super, super small. Because atoms and molecules are so tiny, scientists like to bundle them into groups to keep better track of them, and a mole is a group of 602 sextillion — or 6.02 x 10^23. Hence Mole Day, which started at 6:02 AM today, October 23 (10/23).
To learn more fun facts about moles, check out the TED-Ed lesson below:
And for more insight into the wonderful world of chemistry, check out these 3 great Mole Day-worthy TEDx Talks: