0
The sun keeps shining and throwing out masses of heat, and calculations show that the fusion of hydrogen to form helium would enable it, and other stars, to keep going for billions of years. Of course we can't get there to examine it closely, but I think the evidence is mainly based on not being able to account for it any other way. Try the question in 'Sun and Stars' category to see if an astronomer can give you a better answer.
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
Fusion is a type of?
Fusion is a type of
Is fusion reaction limitless?
Fusion reactions are not limitless. The fusion process can exhaust the supply of fuel and cause fusion to stop. Additionally, there are fusion processes that are not exothermic, but are endothermic and require energy to be put in to sustain them. Without the requisite input energy, fusion ceases.
Why sint fusion currently used as a source of energy?
If you mean synthetic fusion, it is not. Technology is not ready yet to use this commercially; fusion is only done experimentally.If you mean synthetic fusion, it is not. Technology is not ready yet to use this commercially; fusion is only done experimentally.If you mean synthetic fusion, it is not. Technology is not ready yet to use this commercially; fusion is only done experimentally.If you mean synthetic fusion, it is not. Technology is not ready yet to use this commercially; fusion is only done experimentally.
What is different between fusion and non fusion welding?
Fusion is the blending of elements and can only be achieved by melting. Welding by definition is fusion. Brazing ,soldering etc are non fusing.
Why is it more difficult to start a fusion reaction than fission?
Fission reactions start naturally if the proportion of U-235 is high enough; there is evidence this has happened in places in Africa in the distant past of Earth's history. Fusion reactions require more heat and pressure than we really know how to provide so as to keep a reaction going.
How can temperature either help fusion to occur or prevent fusion from occurring?
How can temperature either help fusion to occur or prevent fusion from occurring?
Where would you find a nuclear fusion reaction occurring?
You can find nuclear fusion in a star.
What is the process occurring in stars to produce energy?
Nuclear fusion
Does a red giant start have fusion occurring in its core?
No. In a red giant, fusion occurs in a shell around the core.
Is nuclear chain reaction is called fusion?
The idea of nuclear fusion occurring at room temperature is called cold fusion.
What is triple-fertilization?
Double fertilization + syngamy occurring in angiosperms is called triple fusion.
What fusion is occurring in your sun right now?
The sun is currently a main sequence star.
What is events of occurring in the sun?
Nuclear fusion: mainly of hydrogen into helium. To a lesser extent there is fusion of helium into larger elements - all the way to iron.
Where has the process of nuclear fusion been occurring for over four billion years?
In the Sun's interior
Which type of radiation would you look for in a star to demonstrate that nuclear fusion was occurring inside?
neutrinos
The hottest part of the sun?
The very center of the core, where nuclear fusion is occurring; millions of degrees.
What are sources of bright light in the universe?
Primarily stars, more specifically stars where fusion is occurring.
