Mondadori via Getty Images
The original kinetograph
Do you have an idea for something that may be useful but doesn’t exist yet? Try inventing it! This February 11 is Inventors’ Day. The American inventor Thomas Edison was born on this day in 1847. The U.S. has marked it as Inventors’ Day since 1983.
Edison is credited with hundreds of inventions, including the light bulb. He also invented the first movie projector, which he called a kinetograph. Many inventions have come a long way. Today, you can buy portable projectors for your smartphone.