Stars
The internal heating within stars are so great that they sustain thermonuclear reaction of hydrogen to helium and can make heavier elements. The Sun for example has a core temperature of 13,600,000 K. The bluer, more massive, hotter, and older the stars are, the more internal heating it has. During the end of its lifecycle, the internal heating of a star increases dramatically, caused by contracting core, eventually becoming hot enough to fuse helium then carbon or oxygen.
Read more about this topic: Internal Heating
Famous quotes containing the word stars:
“To understand
The signs that stars compose, we need depend
Only on stars that are entirely there
And the apparent space between them. There
Never need be lines between them, puzzling
Our sense of what is what.”
—John Hollander (b. 1929)
“It becomes the moralist, too, to inquire what man might do to improve and beautify the system; what to make the stars shine more brightly, the sun more cheery and joyous, the moon more placid and content.”
—Henry David Thoreau (18171862)
“And in their blazing solitude
The stars sang in their sockets through the night:
Blow bright, blow bright
The coal of this unquickened world.”
—Philip Larkin (19221986)