History
In 1857, Siemens introduced the regenerative cooling concept with the Siemens cycle. In 1895, William Hampson in England and Carl von Linde in Germany independently developed and patented the Hampson-Linde cycle to liquefy air using the Joule Thomson expansion process and regenerative cooling On 10 May 1898, James Dewar used regenerative cooling to become the first to statically liquefy hydrogen.
Read more about this topic: Regenerative Cooling
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“Most events recorded in history are more remarkable than important, like eclipses of the sun and moon, by which all are attracted, but whose effects no one takes the trouble to calculate.”
—Henry David Thoreau (1817–1862)
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