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absolute zero
The lowest temperature theoretically possible, corresponding to -459.67 degrees on the Fahrenheit scale and -273.15 degrees on the Celsius scale and it is 0 on the Kelvin temperature scale, which uses the same degrees as the Celsius scale.

Although absolute zero has not been reached, yet, the techniques of cryogenics, the technology for creating temperatures below -200 degrees Celsius, have come closer.

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