what is the minimum temperature ever achieved in practice and who achieved it?

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what is the minimum temperature ever achieved in practice and who achieved it?

2007-03-19 02:59:06 · 2 answers · asked by vishal singh 1 in Science & Mathematics ➔ Physics

2 answers

If I'm not mistaken, the lowest temperature ever achieved on earth is around 3 Kelvins (-270 deg C), really close to absolute zero. It is used in those big Physics reasearch institutes to bring the temperature of the superconductors used in particle accelerators to the critical temp. Can't remember who the first person was. He used something way more expensive than liquid nitrogen.

2007-03-19 03:08:00 · answer #1 · answered by the scientist 3 · 0⤊ 0⤋

4.5 picoKelvins (pico is 10 to the minus 12th power)

http://en.wikipedia.org/wiki/Coldest_temperature_achieved_on_Earth

2007-03-19 10:12:15 · answer #2 · answered by Gene 7 · 0⤊ 0⤋