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Planet Hearth by Calibre. A personal, poignant record from the Belfast DJ and producer, dedicated to a close friend of his who passed away last year. Spiral Revelation by Steve Roach. The latest from celebrated electronic composer Steve Roach, which uses only analog synths, is rich, warm, and pulsing with life. Channelview by Curved Light. Bandcamp Album of the Day May 25, Opalescent synth waves crash gracefully on top of each other on this enlightened electronic album.
Explore music. Scattered Disc by Seabat. Coffee Head Duck. Coffee Head Duck This is fantastic in all of its cinematic sci-fi glory. A real Stargate ritual. Museums typically display smaller vacuum flasks fitted in a protective casing. The field of cryogenics advanced during World War II when scientists found that metals frozen to low temperatures showed more resistance to wear.
Based on this theory of cryogenic hardening , the commercial cryogenic processing industry was founded in by Ed Busch. With a background in the heat treating industry, Busch founded a company in Detroit called CryoTech in This evolved in the late s into the treatment of other parts that did more than just increase the life of a product such as amplifier valves improved sound quality , baseball bats greater sweet spot , golf clubs greater sweet spot , racing engines greater performance under stress , firearms less warping after continuous shooting , knives, razor blades, brake rotors and even pantyhose.
The theory was based on how heat-treating metal works the temperatures are lowered to room temperature from a high degree causing certain strength increases in the molecular structure to occur and supposed that continuing the descent would allow for further strength increases. Using liquid nitrogen, CryoTech formulated the first early version of the cryogenic processor.
Unfortunately for the newly-born industry, the results were unstable, as components sometimes experienced thermal shock when they were cooled too quickly. Some components in early tests even shattered because of the ultra-low temperatures. In the late twentieth century, the field improved significantly with the rise of applied research, which coupled microprocessor based industrial controls to the cryogenic processor in order to create more stable results.
Cryogens, like liquid nitrogen , are further used for specialty chilling and freezing applications. Special cryogenic chemical reactors are used to remove reaction heat and provide a low temperature environment.
The freezing of foods and biotechnology products, like vaccines , requires nitrogen in blast freezing or immersion freezing systems. Certain soft or elastic materials become hard and brittle at very low temperatures, which makes cryogenic milling cryomilling an option for some materials that cannot easily be milled at higher temperatures. Cryogenic processing is not a substitute for heat treatment, but rather an extension of the heating - quenching - tempering cycle.
Normally, when an item is quenched, the final temperature is ambient. The only reason for this is that most heat treaters do not have cooling equipment.Feb 13, · Planets Outside Of The Milky Way Galaxy and Our Solar System - Discovery Space Documentary Touch Your Heart 4, watching Live now.