
Getting charged up as he slid down the slide definitely had a shocking result on his hair. Luckily, he knew how to expend his excess charge, as documented in the next picture. It is difficult to see, but he is touching a small metal bolt with his right hand.

He also tested the bolts on the other side of the slide to see if he could achieve the same effect:

Lest you think that we have merely doctored the photos in order to give Jacob an undeserved reputation for scientific genius, here is a video clip of one of his many experiments that day: