The Wall Game as played at Eton College is a vigerous form of football played on a narrow strip of ground along a 110-foot long, slightly curved brick wall.
The last time anyone scored a goal playing the game was is 1909 although points are arwarded for "shy"
... light emitting diodes powered by a little generator embedded in the gyroscope.
The physics of this device looks confusing at first sight, but is surprisingly simple. It ...