March 28 1747: The first in a series of letters from Benjamin Franklin to Peter Collinson was sent regarding his experiments with electricity. 1903: Jean-Maurice-Émile Baudot, who created a telegraphic code that eventually replaced Morse Code, and after whom the term "baud" is named, died. 1905: Ralph Scott received a patent for an electric arc lamp. 1923: James Dewar, inventor of the flask that bears his name, died. 1935: Robert Goddard first used gyroscopes to control a rocket. 1962: U.S. Air Force announced research into the use of lasers to intercept missiles and satellites. 1979: A nuclear accident occurred inside Unit Two reactor at Three Mile Island plant near Middletown, PA. |