venerdì 19 giugno 2015

NYT Science: 37.2 Trillion: Galaxies or Human Cells?

37.2 Trillion: Galaxies or Human Cells?
By NICHOLAS BAKALAR

The counting does not come easily, or exactly, but there are estimates for the number of cells in the human body and galaxies in the observable universe.

Published: June 23, 2015 at 06:00AM

via NYT Science http://ift.tt/1RhnOXS