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How does the sun get most of its energy?

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The sun has been producing light for about five billion years but where does all its energy come from? The most common idea is that the sun is burning gas - like a giant fireball in the sky. If this were true, the sun would have gone out long ago. So how is the sun actually fuelling itself? It is converting... read more
The sun has been producing light for about five billion years but where does all its energy come from? The most common idea is that the sun is burning gas - like a giant fireball in the sky. If this were true, the sun would have gone out long ago. So how is the sun actually fuelling itself? It is converting its own mass into energy. By combining protons (the nucleus of hydrogen) into helium, it squeezes some mass into energy - 4.3 billion kg per second. It is Einstein's famous E=mc^2 which gives us the quantitative relationship between mass and energy, where c is the speed of light. read less
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I love teaching since my schooling later i continued my interest in engineering also by teaching co-students and children.

Sun gets its energy from its nuclear fission reaction.
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The Sun produces energy by the nuclear fusion of hydrogen into helium in its core.
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I love teaching since my schooling later i continued my interest in engineering also by teaching co-students and children.

By proton-proton chain fusion reaction.
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B. Tech graduate with 6 years of teaching experience

It is converting its own mass into energy. By combining protons (the nucleus of hydrogen) into helium, it squeezes some mass into energy - 4.3 billion kg per second. It is Einstein's famous E=mc^2 which gives us the quantitative relationship between mass and energy, where c is the speed of light.
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Teacher

The Sun produces energy by the nuclear fusion of hydrogen into helium in its core.
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Civil Engineering and Languages Subject tutor

The Sun produces energy by the nuclear fusion of hydrogen into helium in its core. What that means is that, since there is a huge amount of hydrogen in the core, these atoms stick together and fuse into a helium atom. This energy is then radiated out from the core and moves across the solar system. It... read more
The Sun produces energy by the nuclear fusion of hydrogen into helium in its core. What that means is that, since there is a huge amount of hydrogen in the core, these atoms stick together and fuse into a helium atom. This energy is then radiated out from the core and moves across the solar system. It is not enough to just answer the question, so here is a breakdown of how the energy is transferred from the core to the Earth and the other objects in our solar system. read less
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Tutor

Sun gets most of its energy by nuclear fusion of hydrogen into helium. The energy released during the nuclear fusion reaction is huge in amount and this energy is the major source of sun's energy.
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The sun has been producing light for about five billion years but where does all its energy come from? The most common idea is that the sun is burning gas - like a giant fireball in the sky. If this were true, the sun would have gone out long ago. So how is the sun actually fuelling itself? It is converting... read more
The sun has been producing light for about five billion years but where does all its energy come from? The most common idea is that the sun is burning gas - like a giant fireball in the sky. If this were true, the sun would have gone out long ago. So how is the sun actually fuelling itself? It is converting its own mass into energy. By combining protons (the nucleus of hydrogen) into helium, it squeezes some mass into energy - 4.3 billion kg per second. It is Einstein's famous E=mc^2 which gives us the quantitative relationship between mass and energy, where c is the speed of light. Thanks! read less
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Tutor

Hydron Fusion, fusing hydrogen atoms together to form different elements, up to iron. The most abundant element it forms is helium..
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