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“picokelvin”
picokelvin (pK)
Scientists at the Massachusetts Institute of Technology (MIT), in Cambridge, USA, led by Aaron Leanhardt, announced in September, 2003, that they had achieved a temperature of 450 picokelvin above absolute zero (0.000 000 000 45 degrees above absolute zero). This is considered the lowest man-made temperature to have been achieved.
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pico- [PEE koh]
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