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Light bulbs
Light bulb invented by Thomas Edison Oct. 21, 1879. Light bulb then lasted 13 hours, now LED light bulbs last up to 100,000 hrs. In honor of the 133 yr anniversary here’ s a joke: How many divorced...
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Polyphasic sleep: powernaps along the day.
Some of us NEED 8 hours of sleep, we hear of people who need 4, but how about people who need a couple naps and that’s it! Taking naps along the day and night to stay awake and productive is called...
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