* Kelvin's work on thermodynamics: Kelvin was a pioneer in thermodynamics, and his work focused on understanding heat, temperature, and their relationship to energy. He recognized that temperature was a fundamental property and that a scale based on absolute zero would be more scientific and consistent than the existing Celsius or Fahrenheit scales.
* Defining absolute zero: Kelvin's key contribution was determining the concept of absolute zero, the theoretical temperature at which all molecular motion ceases. He calculated this point to be approximately -273.15 degrees Celsius.
* The Kelvin scale emerges: The Kelvin scale wasn't explicitly "announced" but rather gradually developed as a consequence of Kelvin's research and his understanding of thermodynamics. He established the scale based on absolute zero as the starting point and used the same size of degree as the Celsius scale.
* Adoption by the scientific community: The Kelvin scale, being based on a more fundamental and scientific principle, gained traction and was gradually adopted by scientists. Its practicality in fields like thermodynamics and physics led to its widespread use.
So, while there wasn't a specific "telling" moment, Lord Kelvin's research and theoretical framework led to the development and adoption of the Kelvin scale, fundamentally changing how temperature is measured and understood.
