A hand sack is any sack or similar object, typically made of cloth and filled with sand or a similar material, that is tossed on the back of the hand for the purpose of mastering tricks or playing games.
The sack race or potato sack race is a competitive game in which participants place both of their legs inside a sack or pillow case that reaches their waist or...
Hand percussion is a percussion instrument that is held in the hand. They can be made from wood, metal or plastic, bottles stops and are usually shaken, scraped, or tapped...
The Vanishing Hand theory is a concept first conceived of by economist Richard Normand Langlois. The term is an intentional play on both Adam Smith's invisible hand and Alfred Chandler's...
Fleming's right-hand rule shows the direction of induced current when a conductor attached to a circuit moves in a magnetic field. It can be used to determine the direction...
