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Today in History: October 21, Edison perfects electric light
Associated Press via Yahoo! Philippines News· 2 years agoToday in History Today is Friday, Oct. 21, the 294th day of 2022. There are 71 days left in the year. Today’s Highlight in History: On Oct. 21, 1879, Thomas Edison perfected a workable electric ...
These are the best — and worst — lightbulbs for the planet
Yahoo Life· 2 years ago“Going from an incandescent to an LED is like replacing a car that gets 25 miles per gallon with...