So the discovery process was "Ow! Haha, hey, put your finger there, you've got to try this!"

"Ow! Haha, hey, put your finger there, you've got to try this!"

"Ow! Haha, hey, put your finger there, you've got to try this!"

"Ow! Hey what happens if we put a shovel in it?"

<CRACK>

"FFFUFUUUUUUUU! Let's stop putting our fingers in that..."

And thus science marches on.