CERN (European Organization for Nuclear Research) is a renowned and highly respected international laboratory situated in Meyrin, Switzerland.

A chemical element is a pure substance that is composed of atoms with the same number of protons in their atomic nuclei.

Enthalpy is a fundamental concept in thermodynamics that measures the total heat content of a system.

Helium is a chemical element with the symbol He and atomic number 2.

Helium-3 is a light, non-radioactive isotope of helium, consisting of two protons and one neutron.

Helium-4 is a stable isotope of the element helium.

An isotope is a variant form of a chemical element that has the same number of protons but a different number of neutrons, giving it a different atomic mass.

Kelvin is a unit of temperature widely used in the scientific field.