Request - What other things can compare to the amount of kinetic energy in the bowling ball? image

Useless Yet Interesting Calculations (/r/theydidthemath): And they said math has no real world applications

For photos that are, you know, mildly interesting (/r/mildlyinteresting): Aww, cripes. I didn't know I'd have to write a description. How many words is that so far, like a hundred? Soooo, yeah. Mildly interesting stuff. Stuff that interests you. Mildly. It's in the name, ffs.