Page "Absolute zero" Paragraph 2

The zero point of any thermodynamic temperature scale, such as Kelvin or Rankine, is set at absolute zero.

By international agreement, absolute zero is defined as on the Kelvin scale and as − 273. 15 ° on the Celsius scale.

This equates to − 459. 67 ° on the Fahrenheit scale and 0 R on the Rankine scale.

Scientists have achieved temperatures very close to absolute zero, where matter exhibits quantum effects such as superconductivity and superfluidity.