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An ultra low temperature (ULT) freezer is a refrigerator that stores contents at −80 to −86 °C (−112 to −123 °F). [1] An ultra low temperature freezer is commonly referred to as a "minus 80 freezer" or a "negative 80 freezer", referring to the most common temperature standard. [2] ULT freezers come in upright and chest freezer formats.
Separate freezers became common during the 1940s; the term for the unit, popular at the time, was deep freeze. These devices, or appliances, did not go into mass production for use in the home until after World War II. [27] The 1950s and 1960s saw technical advances like automatic defrosting and automatic ice making.
Deep or Big Freeze, a purported cooling effect of the expanding universe; Deep Freeze Range, a mountain range in Antarctica; Deep freezer, a stand-alone freezer unit for preserving food; Operation Deep Freeze, a series of American expeditions to Antarctica beginning in 1955; Deep Freeze, a kernel-level software utility by Faronics
Solar-powered refrigerators are characterized by thick insulation and the use of a DC (not AC) compressor. Traditionally solar-powered refrigerators and vaccine coolers use a combination of solar panels and lead batteries to store energy for cloudy days and at night in the absence of sunlight to keep their contents cool.
He was dismayed to find that the deep freezer was not cold enough to produce a "cloud" using breath air. He decided to move the process along by adding a chunk of dry ice just to lower the temperature of his experimental chamber. To his astonishment, as soon as he breathed into the deep freezer, he noted a bluish haze, followed by an eye ...
A representative pressure–volume diagram for a refrigeration cycle. Vapour-compression refrigeration or vapor-compression refrigeration system (VCRS), [1] in which the refrigerant undergoes phase changes, is one of the many refrigeration cycles and is the most widely used method for air conditioning of buildings and automobiles.
Mother India ₹60 lakh [131] 1960 Mughal-e-Azam ₹ 1.5 crore [132] [133] 1975 Sholay ₹ 3 crore [134] 1980 Shaan ₹ 6 crore [135] 1983 Razia Sultan ₹7 crore [136] 1991 Ajooba ₹8 crore [137] Shanti Kranti ₹10 crore Kannada Telugu Tamil Hindi [138] 1995 Trimurti ₹11 crore: Hindi [139] 1996 Indian ₹ 15 crore Tamil [140] 1998 Jeans ...
A Depression and Deep Depressions are categories used by the India Meteorological Department (IMD) to classify tropical cyclones, within the North Indian Ocean tropical cyclone basin between the Malay Peninsula and the Arabian Peninsula.
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