It’s National Inventor’s Day!

Thomas Edison claimed that all you need to invent is “a good imagination and a pile of junk.” Given that he’s credited with over 1,000 patents, he must have had an enormous pile of junk, but other inventors had clever minds and rubbish of their own. Do you know who gave us the following groundbreaking items?

1. Bifocal glasses

2. Fluorescent lighting

3. Computer programming

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Answers:

1. Benjamin Franklin

2. Nikola Tesla

3. Ada Lovelace (in the 1840s!)