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An ice resurfacer is a vehicle or hand-pushed device for cleaning and smoothing the surface of a sheet of ice, usually in an ice rink. The first ice resurfacer was developed by American inventor and engineer Frank Zamboni in 1949 in Paramount, California. [1] As such, an ice resurfacer is often referred to as a "Zamboni" as a genericized trademark.
Illustration of an ice storage air conditioning unit in production. Ice storage air conditioning is the process of using ice for thermal energy storage. The process can reduce energy used for cooling during times of peak electrical demand. [1] Alternative power sources such as solar can also use the technology to store energy for later use. [1]
Bridgeville, California (population 25) was the first town to be sold on eBay in 2002, and has been up for sale three times since. [1] In January 2003, Thatch Cay, the last privately held and undeveloped U.S. Virgin Island, was listed for auction by Idealight International. The minimum bid was US$3 million and the sale closed January 16, 2003. [2]
A liquid (glycol based) chiller with an air cooled condenser on the rooftop of a medium size commercial building. In air conditioning systems, chilled coolant, usually chilled water mixed with ethylene glycol, from a chiller in an air conditioning or cooling plant is typically distributed to heat exchangers, or coils, in air handlers or other types of terminal devices which cool the air in ...
Now, it’s fetching upwards of $2,300 on platforms like eBay. Similarly, the original Sony Trinitron color TVs are valued at $1,000 or more among collectors. ... Old Navy's Break a Sweat Sale has ...
Then, in 1949, he invented a machine that transformed the job of resurfacing an ice rink from a five-man, 90-minute task to a one-man, 15-minute job. [4] The initial machine included a hydraulic cylinder from an A-20 attack plane , a chassis from an oil derrick, a Jeep engine, a wooden bin to catch the shavings, and a series of pulleys.
Interior of the Glaciarium in 1876. Early attempts in the construction of artificial ice rinks were first made in the 'rink mania' of 1841–44. The technology for the maintenance of natural ice did not exist, therefore these early rinks used a substitute consisting of a mixture of hog's lard and various salts.
Free cooling is an economical method of using low external air temperatures to assist in chilling water, which can then be used for industrial processes, or air conditioning systems. The chilled water can either be used immediately or be stored for the short- or long-term. When outdoor temperatures are lower relative to indoor temperatures ...