Ceiling fan be used to reduce the stratification of warm air in a room by forcing it down to affect both occupants' sensations and thermostat readings, thereby improving climate control energy efficiency. Punkah-type ceiling fans date back to 500 BC, and are native to India. Unlike modern rotary fans, these punkah fans move air by moving to and fro, and were operated manually by cord. The first rotary ceiling fans appeared in the early 1860s and 1870s in the United States. At that time, they were not powered by any form of electric motor. Instead, a stream of running water was used,
Rope-a-dope rope-a-dope this way: "Standing on one's feet, it is painful to absorb a heavy body punch even when blocked with one's arm. The torso, the legs and the spine take the shock. Leaning on the ropes, however, Ali can pass it along; the rope will receive the strain." Ali's preparation for the fight, which involved toughening himself up by allowing his sparring partners to pummel him, contributed to observers' sense that Ali was outmatched. But when Foreman became tired from the beating he was delivering, Ali took advantage and won the match. Manny Pacquiao used the strategy to gauge the