If fusion reactions suddenly ceased in the sun, the energy production that sustains the sun's heat and light would stop. This would cause the sun to cool and shrink, leading to a decrease in its brightness and energy output. Eventually, the sun would become a white dwarf, a dense and cooling remnant of a once active star.
Nuclear fusion occurs in the core of stars, including our sun. It is the process by which light elements, such as hydrogen, fuse together to form heavier elements, releasing large amounts of energy in the process. Fusion reactions require high temperatures and pressures to overcome the electrostatic repulsion between positively charged nuclei.
Fusion reactions generally require extremely high temperatures, on the order of tens of millions of degrees Celsius, to overcome the electrostatic repulsion between positively charged atomic nuclei and allow them to collide with enough energy to merge together. This high temperature is necessary to create a plasma state where nuclei can move freely and collide with sufficient energy to undergo fusion.
They occur in the thylakoid membranes of the chloroplasts in plant cells.
Well, whether they're important or not is up to the single individual. But let me explain why someone could find them important:Fission and fusion are two reactions which either split or combine atoms. Let's start with fission, let's say you have a given unstable atom (heavier than iron). You bombard it, the nucleus, with a free particle and the nucleus will split - resulting in more free neutrons. Thereby starting a chain reaction of fission, releasing energy everytime the nucleus splits.The other reaction, fusion, is the opposite. The reaction requires two atoms, lighter than iron, which will go together and release energy during this process.To fully understand why they release energy and how much they release, you should seek out pages about bound energy in atoms, etc.In order for fusion to happen, we currently need the temperature to be very high - which, unfortunately, makes it impossible for us to use the process as an energy source. Though, if we were able to create "cold-fusion", we wouldn't be short in terms of energy.Thereby, it's up to you whether you find the reactions important or not. I for one, think it's good knowledge to have and especially if we, someday, get to use it positively for our society and environment.
It depends. For nuclei lighter than nickel, fusion usually releases energy while fission requires energy. For nuclei heavier than nickel, fission usually releases energy while fusion requires energy.
core and radiation
Is the question what might happen if computers suddenly ceased to exist, or is the question what might happen had computers - computer science and technology as we currently know it - never existed at all?
No, nuclear fusion does not occur in the convection zone of a star. Fusion reactions primarily take place in the core region of a star, where the temperature and pressure are high enough to sustain the nuclear reactions that power the star. The convection zone is a region of the star where heat is transported through the movement of gas, but fusion does not occur there.
Fusion reactions in bigger stars happen at a slower rate than in smaller stars because the higher pressure and temperature in bigger stars allow them to overcome the repulsive forces between positively charged atomic nuclei, enabling fusion to occur even at lower rates. Additionally, bigger stars have a larger supply of fuel, which can sustain fusion over longer periods compared to smaller stars.
Fusion reactions occur in the core of stars, where high temperatures and pressures allow hydrogen atoms to collide and merge to form helium. This process releases a tremendous amount of energy in the form of light and heat.
The Floods that happen suddenly are called Flash Floods.
Metroid Fusion happened in 2002.
Wipeout Fusion happened in 2002.
Dark Fusion happened in 1988.
It happen when it happen
Dancing Stage Fusion happened in 2004.
Fusion - video game - happened in 1989.