Take this example in 1803 the House turned to the affairs of the District of Columbia and began discussing a bill to return portions of the Territory of Columbia to Virginia. I suppose the Territory of Columbia was no longer used after the District lost what home rule it had in the second half of the 19th century.
The windlass is an apparatus for moving heavy weights. Typically, a windlass consists of a horizontal cylinder (barrel), which is rotated by the turn of a crank or belt. A winch is affixed to one or both ends, and a cable or rope is wound around the winch, pulling a weight attached to the opposite end. A windlass would be constructed above a shaft which allowed heavy buckets to be hauled up to the surface. 2  This process would be used until the shaft got below 40 metres deep when the windlass would be replaced by a 'whip' or a 'whim' .
One of the fastest-growing sources of energy in the world, wind turbines generate electricity without emitting greenhouse gases into the environment (unlike fossil fuels). These modern-day windmills convert mechanical energy from the wind into electrical power.Most wind turbines have three main parts: the tower (the long stem that connects to the ground); the blades, which connect to a central hub (the rotor); and the nacelle (a box behind the blades that contains the generator).hese modern-day windmills convert mechanical energy from the wind into electrical power. Most wind turbines have three main parts: the tower (the long stem that connects to the ground); the blades, which connect to a central hub (the rotor); and the nacelle (a box behind the blades that contains the generator).