The rain that fell 2,700 million years ago left its
mark. An international team of scientists has analyzed the fossil
footprints of those raindrops was to figure out how the early atmosphere of
Earth.
"Precise measurements of atmospheric pressure back to 1644, when the
Evangelist Torricelli invented the first barometer", tells SINC the
researcher Sanjoy M. Som, University of Washington (USA).
Contrary to popular belief, the results of the study, published this week in
Nature, suggest that the atmospheric density bent not current levels.
