Dr. Ralph I. Lipman, Stress Physiologist, at the age of 11 in 1952, converted an early dry cell flashlight into a two part book light. The switch and power were from the remains of the flashlight, and the removed bulb was clipped to the top of the book binding. The bulb illuminated the open pages and was connected by two flexible copper wires to the switch remaining on the old flashlight cylinder. That cylinder containing weighty batteries lay securely on the bedding or nightstand. Thus the illuminated book could be moved around accommodating the reader's position in bed or on a nearby chair. Lipman never patented his new light because he chose to use the necessary funds for his education.
so people could read at night without disturbing anyone else.
snuggie world
who invented the white light
thomas Edison invented the light ballWRONG Tomas Edison invented the light BULB!!!! NOT LIGHT BALL
what year was the book bag invented
The first traffic light was invented in December 10, 1868. The electric traffic light was invented in 1912. The Automatic Traffic light was invented in 1927.
Garret A. Morgan invented the taffer light
If you meant to say WHEN was the light bulb invented, it was invented October 22, 1879.
Robert Hooke invented the first light microscope
Johann Wilhelm Ritter invented ultraviolet light
December 24,1877 he invented the light bulb.
yes it was invented in 1990 yes it was invented in 1990 it was in my social studies book yes it was invented in 1990 it was in my social studies book yes it was invented in 1990 it was in my social studies book
Absorpbtion of light doesn't have to be invented. It's a natural characteristic of both light and matter.