Show WHAT DR SHOULD SHOU KNO inventions the lightning rod was invented by benjamin franklin in 1752 for a great many years practical minded men disputed the worth of the lightning rod as a preventive measure agents used to swindle people by the wholesale by putting up useless lightning rods however there Is no longer any question raised against lightning rods when they are property properly installed every big building ties has lightning conductors which represent the old principle of the lightning rod thomas A edison Is one of the greatest inventors the world has ever known he brought out the quadruples telegraph in 1874 the talking machine in 1877 the incandescent lamp in 1878 slid and the motion picture machine in 1893 I 1 4 the sewing machine was invented by howe in 1846 before that time all sewing was done by hand 4 trolley cars were first used in richmond virginia about 1884 0 41 motor busses which bre are now becoming very common were practically unknown ten years ago 0 0 the first american typewriter was brought out by sholes in 1873 0 O the mowing machine with the dif alt ferent lal gear was invented by eickele yer in 1876 e 4 0 10 the gasoline motor that Is used in autom automobiles 0 biles was invented by in 1879 0 o 0 00 0 0 the linotype typesetting machine was invented by baller in 1885 0 the telephone was the invention ot of bell in 1876 0 O practically fill all the great electrical inventions vent ions have been brought 0 out ut within the past fifty years 0 O 0 funny wor I 1 d wa s n t it before all these there big things were invented |