In 1894, Lord Kelvin predicted that radio had no future; he also predicted that heavier-than-air flying machines were impossible.

The paperclip was invented by Norwegian Johann Vaaler.

Traffic lights were used before the advent of the motorcar.

One hour before Alexander Graham Bell registered his patent for the telephone in 1876, Elisha Gray patented his design. After years of litigation, the patent went to Bell.

Count Alessandro Volta invented the first battery in the 18th century.