Research Suggests that Earth Day Lasted only 19 Hours for About a Billion Years.

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For almost a billion years, if you had lived on Earth you would have had days of only 19 hours. Less light time, less night and a planet that turned faster than today. What does this have to do with the atmosphere, with the Moon and with the very life that we breathe now? Geophysicists begin to fit the pieces and the result is quite surprising. A day “stuck” in 19 hours What is taught in the books is simple. The Moon pulls the oceans, generates …

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If you look too small for 24 hours, imagine how you would fit your entire daily routine in just 19. According to a new study published in Nature Geoscence magazine, it was...