Lever a place to stand, and I shall move the Earth with it' is a remark of Archimedes who formally stated the correct mathematical principle of levers (quoted by Pappus of Alexandria). It is assumed that in ancient Egypt, constructors used the lever to move and uplift obelisks weighing more than 100 tons. A lever is a beam connected to ground by a hinge, or pivot, called a fulcrum. The ideal lever does not dissipate or store energy, which means there is no friction in the hinge or bending in the beam. In this case, the power into the lever equals
The Prince Who Wanted to See the World an inn so he could ask his father for leave to present her as his bride, but in his joy at seeing his family, he forgot her. She called on her sisters. They persuaded the innkeeper to sell them as doves to the prince. He was delighted with them, but they spoke to him, put the ring on his finger and the collar on his neck, and showed him the feather. He remembered and married her. The Prince Who Wanted to See the World The Prince Who Wanted to See the World is a Portuguese fairy tale. Andrew Lang included