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:
“Throw the children into the river; civilization has given us too
many.
It is better to die than to grow up and find that you are colored.
Pluck the stars out of the heavens. The stars mark our destiny. The
stars marked my destiny.
I am tired of civilization.”
—Fenton Johnson (1886–1958)
“In my stars I am above thee, but be not afraid of greatness. Some are born great, some achieve greatness, and some have greatness thrust upon ‘em.”
—William Shakespeare (1564–1616)