With its top in heaven

God caused the people to speak different languages when they built a tower to heaven. What would he do if the people flew to the Moon?


Art Benjamin: Mathemagician

Arthur Benjamin: Lightning calculation and other “Mathemagic”

In this video Arthur Benjamin calculates squares of 2, 3, and 4 digit numbers faster than you can do it on a calculator. I know. I tried to keep up while watching the video. Audience members give him their birthdate and he tells them what day of the week they were born. Wait until you see what he does for his grand finale.