Dat concludes Dat concludes today's lecture on "String Theory".....do any of da hoomans in the audience haz any questions ? uhm, yessir. ober heer pleez! Give the gift of kindness this holiday season by donating to our Giving Tuesday fundraiser to help homeless pets and animals in need! It's time to pay your cat tax! Add to Preferred Sources Comments From Len314159 Tags german shepherd physics professor science teacher Like See all captions Recaption Show Comments Hide Comments