2007-10-06 19:01:44 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
Andrea doesn't seem to know (or understand) the difference between 'fusion' and 'fission'. What she says is very correct for a fission reaction, but in a fusion reaction the nucleii of two atoms are fused together to form a new atomic nucleus. Hydrogen fuses to form helium in the Sun. It's the exact same reaction that takes place in a Hydrogen Bomb. And the amount of mass converted to energy is only on the order of a few tens of grams. The Sun, by comparison, converts several -tons- of mass into energy every second.
Doug
2007-10-06 19:22:18 · answer #1 · answered by doug_donaghue 7 · 3⤊ 0⤋
When fusion takes place a lot of radiation is created, this radiation has a pushing effect to neutralize the crushing force of gravity, the star in which the fusion is taking place will reach a point of stabilization and retain a steady diameter.
2007-10-09 06:42:59 · answer #2 · answered by johnandeileen2000 7 · 0⤊ 0⤋
And to add to what Doug said, the energy released by fusion raises the temperature of the gas and provides outward pressure to balance the inward force of gravity (at least inside a star.)
2007-10-07 00:38:59 · answer #3 · answered by Peter T 6 · 0⤊ 0⤋
nuclear fusion takes place when a radioactive substance splits and it realeases 3 neutrons with every slight split or fusion reacton. this realease of 3 neutrons starts the chain reaction which is very fast and takes place at high temp. so answering the question the release of the neutrons and the chain reaction compresses the air around it cause the air around it gets hotter thus incereasing the pressure
2007-10-06 19:12:27 · answer #4 · answered by Andrea G 1 · 0⤊ 6⤋