Science
Related: About this forumFossil raindrops probe ancient atmosphere
The imprints of raindrops preserved in 2.7bn-year-old rock are being used to figure out what the atmosphere was like on the early Earth.
Scientists have used the depressions drops left to calculate how fast they were going as they impacted the ground.
This has allowed them to determine the density of air in ancient times.
This "palaeobarometry" approach, revealed at the AGU Fall Meeting, will help constrain the models that try to simulate conditions in Archaean times.
http://www.bbc.co.uk/news/science-environment-20575250
Diclotican
(5,095 posts)dipsydoodle
Interesting - I have no idea that they could discover ancient rain drops at all - not to say 2.7bn year ago..
Diclotican
HereSince1628
(36,063 posts)you just have to admit that sometimes nature is AWESOME!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Diclotican
(5,095 posts)HereSince1628
The more I look at the nature, the more I must admit - it is amazing to put it carefully. And we are lucky enought to be able to get to know it
Diclotican
HereSince1628
(36,063 posts)sakabatou
(42,152 posts)It's exciting what science can find.