Charles Townes, physicist who helped develop lasers, dies at 99
Source: New York Times
Charles H. Townes, a visionary physicist whose research led to the development of the laser, making it possible to play CDs, scan prices at the supermarket, measure time precisely, survey planets and galaxies and even witness the birth of stars, died on Tuesday in Oakland, California. He was 99.
His daughter Linda Rosenwein confirmed his death.
In 1964, Townes and two Russians shared the Nobel Prize in Physics for their work on microwave-emitting devices, called masers, and their light-emitting successors, lasers, which have transformed modern communications, medicine, astronomy, weapons systems and daily life in homes and workplaces.
One of the most versatile inventions of the 20th century, the laser amplifies waves of stimulated atoms that shoot out as narrow beams of light, to read CDs and bar codes, guide missiles, cut steel, perform eye surgery, make astronomical measurements and carry out myriad other tasks, from transmitting a thousand books a second over fiber optic lines to entertaining crowds with light shows.
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