 Well, he did the obvious experiment that I'm sure all of you were thinking of, and that is to hook up his tongue with his eyeball, right? Oh, no. And now he got the jolt, the taste, and a flash. And he reported this in a letter to Joseph Banks that was reported in 1800. And that really set off an incredible train of excitement in chemistry. And chemists have been, I think, putting their tongues to batteries ever since.