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The first lighter was invented at 1823 where as the first match stick was invented at 1826 this means that lighter was the first to be invented than a match stick Photo credit:printest.com Info:justifoundout.com

When the Three Gorges Dam was built, 39 trillion kilograms of water from the Yangtze River built up behind it to 175 meters above sea level. NASA has calculated that the dam only slows the rotation by 0.06 microseconds, which is six hundredths of a millionth of a second. Our planet’s rotation speed actually fluctuates fairly often, as it can be influenced by earthquakes, the moon, and the climate change-induced movement of the North Pole. Photo credit:interesting engineering. Com Source kinetica. Com