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R-407C is a mixture of hydrofluorocarbons used as a refrigerant. It is a zeotropic blend of difluoromethane (R-32), pentafluoroethane (R-125), and 1,1,1,2-tetrafluoroethane (R-134a). Difluoromethane serves to provide the heat capacity, pentafluoroethane decreases flammability, tetrafluoroethane reduces pressure. [ 1 ]
The term subcooling (also called undercooling) refers to a liquid existing at a temperature below its normal boiling point. For example, water boils at 373 K; at room temperature (293 K) liquid water is termed "subcooled". Subcooled liquids are frequently used in refrigeration cycles, steam turbine cycles, and some rocket engines use subcooled ...
The Scratch Perverts are a collective of turntablist DJs from London, formed in 1996 by Tony Vegas, Prime Cuts and DJ Renegade. World DMC team champions in both 1999 and 2001. Additionally Prime Cuts won 2 consecutive ITF World Scratching titles, first beating A-Trak in Hawaii in 1999 and then defending the title in Los Angeles the following ...
Clark passed a few Bird marks over the weekend. Clark became the fastest player in league history to reach 350 points and 150 assists, doing so in her 22nd game to Bird’s 25th. And she overtook ...
Supercooling is the cooling of a liquid below its freezing point without it becoming solid. Freezing point depression is when a solution can be cooled below the freezing point of the corresponding pure liquid due to the presence of the solute; an example of this is the freezing point depression that occurs when salt is added to pure water.
Breaking at the Olympics is a testament to hip-hop's influence around the world. Logan Edra grew up learning about the four elements of hip-hop: rapping, graffiti, DJing and breakdancing. Now, she ...
Mixxx is a DJ Automation and digital DJ performance application [6] and includes many features common to digital DJ solutions as well as some unique ones: It natively supports advanced MIDI and HID DJ controllers, is licensed under the GPL-2.0-or-later and runs on all major desktop operating systems. [7] The project was started in early 2001 ...
July 10, 2024 at 1:58 PM. The world’s largest coffee chain is handing out freebies today. On July 10, Starbucks customers who order any cold handcrafted drink including cold brews, iced espresso ...