In Nature
Most interstellar hydrogen is in the form of atomic hydrogen because the atoms can seldom collide and combine. They are the source of the important 21 cm hydrogen line in astronomy at 1420 MHz.
Read more about this topic: Nascent Hydrogen
Famous quotes containing the word nature:
“There are some things, my dear Fisher, which do not bear much looking into. You undoubtedly have heard of the Siberian goat herder who tried to discover the true nature of the sun. He stared up at the heavenly body until it made him blind. There are many things of this sort, including love and death.”
—Stanley Kubrick (b. 1928)
“Perestroika basically is creating material incentives for the individual. Some of the comrades deny that, but I can’t see it any other way. In that sense human nature kinda goes backwards. It’s a step backwards. You have to realize the people weren’t quite ready for a socialist production system.”
—Gus Hall (b. 1910)