Writting paper Essay Example | Topics and Well Written Essays - 1750 words

Writting paper - Essay Example It is also known as the Chase or Police and Thieves. The participants of the game are split in two teams. One team is the Cops or the Police- the good guys; the second team is the thieves- the bad guys. The cops chase the robbers and put them into a prison or jail. The robbers can not break free from the prison by themselves. Only a fellow thief can come and rescue the jailed robber by tagging him/her, while being vigilant about the police and trying that it does not catch them. The teams switch roles when all the robbers have been jailed. In a slightly modified version of the game, the robbers are given a few minutes margin before the chase begins. Both sides often use toy guns and assume a language and other artifacts that relate them to their role. Bimbo is another game that us popular amongst children, especially in Italy. The two main roles in the game are that of Bimbo (the leader) and the players who are chased. The players stand in two files facing each other, five yards apart, with their hands facing upwards behind their backs. The Bimbo has two leaves with him, and he struts behind the lines, discreetly placing the leaves in the hands of any two players, one from each line. Then he suddenly shouts â€Å"Stop! Thief! Lucky Leaf!† and that is the cue for the two players who are in possession of the leaves to run to the opposite side, avoiding being caught by the Bimbo (Cagel, 2010). These two players then pass the leaves to another two players who run across the play area to the opposite line and so on, while the Bimbo tries to catch them. If the Bimbo catches any person who has the leaf, then that person is the new Bimbo. Both Cops and Robbers and Bimbo are outdoor games and the theme of the game remains the same: the thrill of chase. The games are similar in the respect that there are two different roles that the participants are split into, and both games can involve a large group of children. The concept of assuming a pretended identity is

Air conditioning. What and when was it invented How did it develop Essay

Air conditioning. What and when was it invented How did it develop - Essay Example It was fan-powered. It was Ding Huan who made a fan which passed air from cold water which then spread in the house. This idea was found in the dynasties of Tand and Song. First, people powered the fans manually. Later on, water was used to drive the fans. One very difficult design of powering the fan was found in the Tang dynasty in which the fountain water that went upwards was used to push the gears and hence, the fans were turned on. In the air-coolers in which water was used as the main cooling thing, the evaporation of water made the space very humid. Michael Faraday as a scientist of British origin who in 1820 made a compressor in which, ammonia was used. The challenge in front of Faraday was to exhaust the fumes of ammonia. This was difficult because of the toxic property of ammonia. Although the cooling agent was unsafe, yet the technology of compressing he introduced is used even today. Compression was later used by John Gorrie who was from Florida. He made ice with it. With this ice, he cooled down the structures. The commercial air conditioner was invented by Willis Haviland Carrier in the year 1902 (â€Å"History of Air Conditioning†). Carrier was a very hard working person. â€Å"I fish only for edible fish, and hunt only for edible game even in the laboratory† (Carrier cited in Bellis). His air conditioner was to be used to lower down the temperature of the machinery that was used in the process of printing. But one thing that Carrier noticed and was very good about his design was that in addition to cooling down the air, his air conditioner also regulated the humidity in the air. This property assisted in calibrating the ink in the printing press and also made the alignment of the papers very good. This was a very wonderful achievement and laid the basis of air conditioning in both the commercial and the industrial sectors. Carrier decided to do good business with his air conditioners, so he opened up