What makes the sun shine so brightly? What makes the sun shine so brightly?
Reply What makes the Sun shine? Its heat, because all hot objects shine–like filaments in lightbulbs. What makes the Sun hot? Energy is released in the core of the Sun by nuclear processes, which combine atoms of hydrogen into atoms of helium. Four hydrogen nuclei (aka protons) combine to form one of helium, with some energy left over, and that energy provides the heat. Many chemical reactions require a higher temperature (boiling an egg, for instance), and so do nuclear reactions. The temperature required for the solar energy release is enormous, and creates enormous pressure. Only near the center of the Sun can these conditions exist, with the weight of the higher layers of the Sun keeping the energy-release region confined. If that confinement did not exist and it had the chance to expand, it would cool down and all nuclear energy release would end. For more, see http://www.phy6.org/stargaze/Sun7enrg.htm Response to reply: thanks but my assignment was due like three days ago and i
