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 (symbol: K) is the base unit of temperature in the International System of Units (SI). The kelvin is defined as the fraction of the thermodynamic temperature of the triple point of water (exactly 0.01 °C or 32.018 °F). 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 Thomson, 1st Baron 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 degree Celsius, which has the same magnitude. The definition implies that absolute zero (0 K) is equivalent to . 

In 1848, William Thomson, who later was made Lord Kelvin, wrote in his paper, "On an Absolute Thermometric Scale", of the need for a scale whereby "infinite cold" (absolute zero) was the scale's null point, and which used the degree Celsius for its unit increment. Kelvin calculated that absolute zero was equivalent to −273 °C on the air thermometers of the time. This absolute scale is known today as the Kelvin thermodynamic temperature scale. Kelvin's value of "−273" was the negative reciprocal of 0.00366—the accepted expansion coefficient of gas per degree Celsius relative to the ice point, giving a remarkable consistency to the currently accepted value. QUESTIONS:

Q1:
1. What ceases at absolute zero?
2. What is there none at all of at absolute zero?
3. 
Q2:
1. What scale uses absolute zero as its null point?
2. Which way of measuring temperature uses absolute zero as a null point?
3. 
Q3:
1. Who does the Kelvin scale get its name from?
2. Who is the source for the name of the Kelvin scale?
3. 
Q4:
1. What was William Thomson's title?
2. What official title did William Thomson go by?
3. 
Q5:
1. When was William Thomson born?
2. What was the year of William Thomson's birth?
3. 
Q6:
1. Where was WIlliam Thomson born?
2. What was William Thomson's birthplace?
3. 
Q7:
1. When did William Thomson die?
2. What was the year of William Thomson's passing?
3. 
Q8:
1. What school did William Thomson work at?
2. Which school employed William Thomson?
3. 
Q9:
1. What was the title of William Thomson's paper?
2. What did Lord Kelvin call his manuscript?
3. 
Q10:
1. When did Lord Kelvin write his paper?
2. What was the year of publication of William Thomson's paper?
3. 
