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*It is the baseline for the [[Kelvin]] [[temperature]] scale.
*[[Absolute Zero]] is equivalent to -273.15°C.
*[[Absolute Zero]] represents the lower limit of the thermodynamic temperature scale.
*Achieving [[Absolute Zero|absolute zero]] is impossible; it can only be approached asymptotically.
*At [[Absolute Zero|absolute zero]], the entropy of a perfect crystal is exactly zero, per the third law of thermodynamics.
*Near [[Absolute Zero|absolute zero]], quantum mechanical effects such as Bose-Einstein condensation can be observed.
*Laboratories use techniques such as laser cooling and evaporative cooling to reach temperatures close to [[Absolute Zero|absolute zero]].
===Examples===