How was the gel pen invented?

Answer Gel pens were invented in the 1980s by a Japanese company called the Sakura Color Products Corporation. Sakura created these pens, with their unique ink formula, to compete with the innovative rol... Read More »

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Who invented pickleball&what year was it invented?

Pickleball was invented in 1965 by Joel Pritchard and Bill Bell. The court included a badminton net that had been lowered to a height of 36 inches. A plastic ball was used along with paddles that w... Read More »

Who invented the bullet train and when was it invented?

Japan's "Bullet Train" was developed by Dr. Hideo Shima (1901 - 1998). Dr. Shima began investigations in 1948 and in 1958 it was decided to go ahead with a new line which followed the Tokaido road... Read More »

When was the first earbuds invented and who invented it?

I know this sounds weird but where the speaker is suck on it and try using it again

Who invented invented the vacuum cleaner?

The first upright vacuum cleaner was invented by a janitor in Canton, Ohio- James Spangler in 1907. On June 2, 1908, he received US Patent Number 889,823 for a Carpet Sweeper and Cleaner.