1a-created=coined;"the word"laser" was coined an...." 2c-invervention=influence
3b-when an atom and molecule holding into excess energy has been.... 4a-amplify stimulated emissition of visible light waves 5b- instead of working with light, however, he worked with microwaves, which have a much longer wavelength,........before long, many other physicists were building masers and trying to discover how to produce stimulated emission at even shorter wavelengths
6c-Charles H. Townes, then at Columbia University in New York...he worked with microwaves........and built a device he called a “maser”, for Microwave Amplification by the Stimulated Emission of Radiation
