THINGS TO NOTE IN PHYSICS .
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Boltzmann constant (k) is equal to R/L=1.3806 x 10-²³,Jk(joule per Kelvin) where R= gas constant and L= Avogadro constant.
It was named after an Australian physicist Ludwig Boltzmann(1844-1906).
The instrument for measuring fluid pressure which consist of a coiled flattened tube that tends to straighten when pressure inside it increases is called Bourdon gauge. It was named after Eugène Bourdon, a French engineer .
Bohr theory is an atomic theory that assumes all atoms are made up of a central positively charged nucleus surrounded by electrons which incorporate a quantum theory to limit the number of allowed orbitals in which electrons can move.