If a chessboard were to have wheat placed upon each square such that one grain were placed on the first square, two on the second, four on the third, and so on, with 64 squares on a chessboard, then the total number of grains equals 18,446,744,073,709,551
Naked 5k race in Argentina 2017. 30 photos in this album. I found this event on Twitter last year. I have participated in four nude races very similar to this one.
