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== Reaching Towards Absolute Zero ==
== Reaching Towards Absolute Zero ==
It is considered theoretically impossible to achieve absolute zero, as an object with this temperature would have a theoretical volume of zero, but scientists have come quite close. The first example of this occurred in 1908 when [[Kammerlingh Onnes]] liquefied [[Helium]]. The temperature he reached was approximately four kelvin. Lower temperatures have been reached with different [[isotope]]s of Helium. A temperature of 0.3 kelvin has been reached with <sup>3</sup>He. The lowest temperature ever reached by any substance was 280 picokelvins.
It is considered theoretically impossible to achieve absolute zero, but scientists have come quite close. The first example of this occurred in 1908 when [[Kammerlingh Onnes]] liquefied [[Helium]]. The temperature he reached was approximately four kelvin. Lower temperatures have been reached with different [[isotope]]s of Helium. A temperature of 0.3 kelvin has been reached with <sup>3</sup>He. The lowest temperature ever reached by any substance was 280 picokelvins.
== Sources ==
== Sources ==