Charles Hard Towns
An American Theodore Maiman / devoloped the laser in 1960?
Raman spectroscopy is the vibrational spectroscopy. The ancient days the scientist use sunlight as a source for getting spectrum.but the modern world, the scientist use high energy laser for characterisation.so, it is called laser raman spectroscopy.
Joseph Kilpatrick, at Honeywell Avionics led the team which developed the ring laser gyroscope.
It is laser printers a famous scientist told me
it has devoloped over time because more electrics and objects were introduced to it
1932
Parker Brothers.
French
Mesopotamia
I regret that the phrase "decimal current" is not recognised. Perhaps decimal current is yet to be developed (or devoloped, even).
Bohr
The man!