The quest for Absolute Zero temperature comes a step closer to reality.

Sometimes I can’t help but be awed at what physicists are accomplishing in the lab.

How cold is cold enough? Eliminating entropy picokelvins from absolute zero

When you think about the temperatures associated with “cold,” you probably imagine a cold winter day, or a block of ice (32 °F, 0 °C, or 273.15 K). This is downright balmy compared to the nanokelvin (10-9 K) temperatures physicists can regularly achieve in the lab. Now, things are about to get even chillier with a new technique that can reduce the entropy—and therefore temperature—of a cold gas to near-absolute zero by finely controlling the number and energy level of atoms.

At near-absolute…

1 thought on “The quest for Absolute Zero temperature comes a step closer to reality.

  1. Absolute Zero is not possible on earth, there is always matter nearby to pass on heat. Even in the vacuum of space, the instrumentation used to measure the temperature (Even non-contact tools like lasers) will prevent it from nearing zero.

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