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Learning from Fossilized Raindrops 2.7 Billion Years Old

Updated on April 7, 2012
Raindrops fossil
Raindrops fossil

Imagine this - fossilized raindrops. How in the world would one know they are raindrops? I mean, foot prints, plants, skeletons, yes, but raindrops? Blows my mind.

In any case, scientists have found them, actually long ago. In fact, around the time of Charles Darwin, a scientist put forth a theory about how prehistoric raindrops could provide a window into the atmosphere of Earth. The theory indicated that fossil rain prints could show the density of long ago because the thickness will impact how fast the drops fall . The thicker atmosphere would slow rain and this indicates the size when hitting the ground.

Until recently, none were found but now some have. The results of Sanjoy Som and other scientists published their findings in Nature, a scientific journal. What they found in interesting. The atmosphere 2.7 billion years was similar, except, there was little oxygen, the sun was weaker, days were shorter but more of them. The scientists examined layers of sentiment and ancient tides and concluded that a day was about 18 hrs. long and a year comprised of 460 days. Some 620 million years ago, the day was 22 hrs. and a year 400 days.

These are incredible findings and I would like know how these discoveries were ascertained

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      Jayfort 6 years ago

      A co-worker and I have an ongoing disagreement over global warming. She says it's caused by humans and I feel it's part of the Earth's and Sun's natural cycles. Another part of the report you mention addresses the heating/cooling cycles.

      Perry, keep up the great Hubbing!

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