where did the term swamp cooler come from
Evaporative cooler The evaporative cooler was the subject of numerous US patents in the 20th century; many of these, starting in 1906,[2] suggested or assumed the use of excelsior (wood wool) pads as the elements to bring a large volume of water in contact with moving air to allow evaporation to occur. A typical design, as shown in a 1945 patent, includes a water reservoir (usually with level controlled by a float valve), a pump to circulate water over the excelsior pads and a centrifugal fan to draw air through the pads and into the house.[3] This design and this material remain dominant in evaporative coolers in the American Southwest, where they are also used to increase humidity.[4] In the United States, the use of the term swamp cooler may be due to the odor of algae produced by early units.[5]
Roman Baths (Bath) The name Sulis continued to be used after the Roman invasion, leading to the town's Roman name of Aquae Sulis ("the waters of Sulis"). The temple was constructed in 60â€“70 AD and the bathing complex was gradually built up over the next 300 years.[8] During the Roman occupation of Britain, and possibly on the instructions of Emperor Claudius,[9] engineers drove oak piles to provide a stable foundation into the mud and surrounded the spring with an irregular stone chamber lined with lead. In the 2nd century it was enclosed within a wooden barrel-vaulted building,[5] and included the caldarium (hot bath), tepidarium (lukewarm bath), and frigidarium (cold bath).[10] After the Roman withdrawal from Britain in the first decade of the 5th century, these fell into disrepair and were eventually lost due to silting up,[11] and flooding.[12] The Anglo-Saxon Chronicle suggests the original Roman baths were destroyed in the 6th century.[13]