“Did you hear about the guy who cooled himself to absolute zero? He’s 0K now”

A science joke about the Kelvin scale has been printed on several images:
 
“Did you hear about the guy who cooled himself to absolute zero? He’s 0K now.”
 
The joke was first posted on Twitter on June 2, 2011.
 
   
Wikipedia: Kelvin
The kelvin is a unit of measure for temperature based upon an absolute scale. It is one of the seven base units in the International System of Units (SI) and is assigned the unit symbol K. The Kelvin scale is an absolute, thermodynamic temperature scale using as its null point absolute zero, the temperature at which all thermal motion ceases in the classical description of thermodynamics. The kelvin is defined as the fraction  1⁄273.16 of the thermodynamic temperature of the triple point of water (exactly 0.01 °C or 32.018 °F).[1] In other words, it is defined such that the triple point of water is exactly 273.16 K.
 
The Kelvin scale is named after the Belfast-born, Glasgow University engineer and physicist William Lord Kelvin (1824–1907), who wrote of the need for an “absolute thermometric scale”. Unlike the degree Fahrenheit and degree Celsius, the kelvin is not referred to or typeset as a degree. The kelvin is the primary unit of temperature measurement in the physical sciences, but is often used in conjunction with the Celsius degree, which has the same magnitude. The definition implies that absolute zero (0 K) is equivalent to −273.15 °C (−459.67 °F).
 
Twitter
Chris E
‏@Christoffelees
Did you hear about the guy that cooled himself to absolute zero? He’s 0K now.
8:48 PM - 2 Jun 2011
 
Twitter
Tim ✈️ Indiecade EU
‏@marmalade_tim
Did you guys hear about the guy who cooled himself to absolute zero?        He’s 0K now though.      #cringe
9:13 PM - 2 Jun 2011
 
Reddit
Did you hear about the guy who cooled himself to absolute zero? (self.funny)
submitted June 3, 2011 by AMathmagician
He’s 0K now.
 
Bodybuilding.com
Did you hear about the guy who cooled himself to absolute zero?
SuppRatings
06-03-2011, 12:47 AM
He’s 0K now.
 
Reddit
Did you hear about the guy who cooled himself to absolute zero?
submitted July 4, 2013 by ThatIsMrDickHead2You
He’s OK now
 
Skoon Studios
Chemistry Thought Of The Day: Mpemba
Posted on January 16, 2014
(...)
I don’t think this explains the guy who cooled himself to absolute zero, but I did read that he is 0K now.
Posted in Chemistry and tagged chemistry, mpemba.
 
Twitter
SciencePorn 🚀
‏@SciencePorn
Did you hear about the guy who cooled himself to absolute zero? He’s 0K now. #awjeez #fargo http://bit.ly/1hJsqtf  #ad
8:46 PM - 15 Apr 2014
 
Twitter
J Hizzle
‏@jessiehofficial
Did you hear about the man who got cooled to absolute zero? He’s 0K now. #ClassicJokeWednesday
11:56 AM - 10 Feb 2016