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:
“When we understand that man is the only animal who must create meaning, who must open a wedge into neutral nature, we already understand the essence of love. Love is the problem of an animal who must find life, create a dialogue with nature in order to experience his own being.”
—Ernest Becker (1924–1974)
“For Nature is the noblest engineer, yet uses a grinding economy, working up all that is wasted to-day into to-morrow’s creation;Mnot a superfluous grain of sand, for all the ostentation she makes of expense and public works.”
—Ralph Waldo Emerson (1803–1882)