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Where has the process of nuclear fusion been occurring for over four billion years?
Nuclear fusion has been occurring in the core of the Sun for over four billion years. The intense heat and pressure at the Sun's core allow hydrogen atoms to fuse into helium, releasing a tremendous amount of energy in the process.
At what point in its evolution will a protostar stop shrinking and stabilize into a star?
A protostar will stop shrinking and stabilize into a star when the inward force of gravity is balanced by the outward pressure generated by nuclear fusion in its core. This marks the beginning of the star's main sequence phase where it will remain stable for several billion years.
What are the main reasons why nuclear fusion have not been used in nuclear reactors?
Well, scientists have been researching fusion reactors for over 50 years, but nuclear fusion is much more difficult to achieve than nuclear fission, which is what current nuclear power technology is based on. There are many reasons for this, but while there have been tests and advancements in the field, scientists have yet to a) create a sustainable and stable nuclear fusion reaction and b) create a reaction that has a greater output than input.
Can nuclear fusion continue indefinitely?
Nuclear fusion, like any process of producing power, uses fuel in doing so. In the stars, where fusion is the source of their energy, hydrogen is being used in fusion, producing helium plus energy. In any star the supply of hydrogen will eventually run out and the star will die, but its lifetime will be immensely long, many billions of years. On earth, if fusion can be made to work, it will use isotopes of hydrogen which are abundant, so as a source of energy it would last for many thousands of years.
What are the risks of nuclear fusion?
The main disadvantage of fusion is that no scientists have been able to contain a fusion reaction long enough for there to be a net energy gain, but nuclear fission is already producing 11% of the worlds energy needs.The atomic bomb.
Where dies the suns nuclear fusion occur?
In about 4 - 5 billion years. I'm pretty sure it's 4.4 billion years.
Why the sun will die?
The Sun will die, in some 5 billion years, because it will run out of hydrogen to power its process of nuclear fusion.
Is nuclear fusion used for nuclear power?
No, not yet. Maybe in another 20 years when its perfected (which they have been saying every 20 years since they originally began work in the 1950s on lab prototypes of controlled nuclear fusion reactors for power generation).
What is the power of the atom?
Not sure what you mean; but you can get quite a lot of energy from the so-called atomic energy, or nuclear energy. For example, the Sun has been shining for about 5 billion years, and will continue shining for another 5 billion years; currently, the rate of energy production (the power emitted) is about 3.846 x 10^26 watts. The Sun gets its energy from nuclear fusion.
Where has the process of nuclear fusion been occurring for over four billion years?
Nuclear fusion has been occurring in the core of the Sun for over four billion years. The intense heat and pressure at the Sun's core allow hydrogen atoms to fuse into helium, releasing a tremendous amount of energy in the process.
What is the percentage of current nuclear power plants that use nuclear fusion energy?
Zero, and it will stay zero for many years to come!
Why dont you use nuclear fusion power plants?
Because we do not have the technology to build them. It may be 50 years before we do.
How long does the sun shine?
Our sun will shine for another 5 billion years
What energy source would allow the sun to shine 5 billion years?
The sun shines due to nuclear fusion in its core, where hydrogen nuclei fuse to form helium. This process provides the sun with the energy needed to shine, and it is estimated that the sun will continue to shine for another 5 billion years before it exhausts its hydrogen fuel and transitions to the next stage of its life cycle.
What is the lifespan of the Sun?
The Sun is about 4.6 billion years old and is estimated to have a total lifespan of about 10 billion years. It is currently in the middle of its main sequence phase where it is converting hydrogen into helium through nuclear fusion. It is expected to continue shining for another 5 billion years before evolving into a red giant and eventually a white dwarf.
At what point in its evolution will a protostar stop shrinking and stabilize into a star?
A protostar will stop shrinking and stabilize into a star when the inward force of gravity is balanced by the outward pressure generated by nuclear fusion in its core. This marks the beginning of the star's main sequence phase where it will remain stable for several billion years.
How long can fire last on the sun?
It is not ordinary fre but nuclear fusion. The sun will "burn" for about 10 billion years in total. It is coming up to the half-way mark.
