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:
“The stars have grooved our eyes with old persuasions
Of love and hatred, birth,—surcease of nations . . .”
—Hart Crane (1899–1932)
“Where were you when I laid the foundation of the earth? Tell me, if you have understanding. Who determined its measurements—surely you know! Or who stretched the line upon it? On what were its bases sunk, or who laid its cornerstone when the morning stars sang together and all the heavenly beings shouted for joy?”
—Bible: Hebrew, Job 38:4 -7.
God, to Job.
“Among the earliest institutions to be invented, if I read the stars right, is a Protestant monastery, a place of elegant seclusion where melancholy gentlemen and ladies may go to spend the advanced session of life in drinking milk, walking the woods & reading the Bible and the poets.”
—Ralph Waldo Emerson (1803–1882)