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What else can I help you with?
Why do heavier elements form at the centre of the sun?
Nuclear Fusion Processes, those that form new elements, require both high temperatures and pressures. These are only found at or near the center of the star. Hydrogen fusion is the easiest (excepting deuterium but that's a bit too detailed for here) and takes place in the smallest of stars. (Brown Dwarves don't count as no fusion is going on there). For successively heavier fusion reactions creating heavier elements higher temperatures and pressures are required and therefore take place nearer the center of the star within the sphere of hydrogen fusion. The very largest star therefore have an onion like structure where more and more internal layer are forming heavier and heavier elements. The heaviest element that can be formed by energy producing reactions is Iron. After that the formation of even heavier elements absorbs energy. This is why all the elements above Iron are thought to form in Super-novas reactions where there is incredible temperatures and pressures and no worry that energy absorbing reactions are going to shut things down.
What happens if our sun's hydrogen gets used up?
Stars are born from clouds of gas and then they enter a stable period of about 5 billion years. Their brightness is due to fusion reactions fuelled by hydrogen. As a star's supply of hydrogen runs out, the high radiation pressure produced by the fusion reactions decreases. Without this outwards pressure, the force of gravity causes the star's core to contract. This increases the temperature of the core, making it hotter than it was during the stable period. The core is now mainly helium. Eventually, the core temperature becomes high enough for further more complex nuclear fusion reactions to occur. The new fusion reactions cause a higher outward radiation pressure than before. At this point the inward gravitational forces are unable to balance the radiation pressure and the star expands. It expands so much that the outer layers cool to about 3000 °C. Because the surface is cooler it looks red (only red-hot, not white-hot), so this type of star called a red giant. When our Sun reaches this stage it will be so large that the Earth will be inside it! :O But this won't happen for at least another 2 million years...
Why is Rigel hotter than Betelgeuse?
Quite simply because Rigel is still on the main sequence whereas Betelgeuse has come off the main sequence and is only fusing helium in it's core, whereas Rigel is still fusing hydrogen in it's core. This is the reason for the difference in temperature.
Are stars bigger or the moon?
Stars are much much bigger than the moon. They only appear to be smaller because they are so far away as compared to the moon. ------------------------------------------------------------------------------------------------ A star is a gigantic celestial body of hot gas that radiates energy derived from thermonuclear reactions in the interior. The moon appears bigger because it is so much closer to us than the stars. The sun is also considered as a star.
What is the only one molten metallic interior Earth shell?
The outer core is the only molten metallic interior Earth shell. It is primarily composed of iron and nickel in a liquid state, which generates Earth's magnetic field through convection currents.
What does the core so for the sun?
The core of the Sun is the only part of the Sun (and all stars) that is compressed by gravity enough to maintain runaway thermonuclear reactions to counterbalance the star's own gravity.
Where does nuclear fussion only take place in the sun?
Only at the core where the temperature and pressure is high enough.
Why does fusion occur in he sun's core but not in other layers?
Thermonuclear reactions only occur in the core of the star because that's where the heat and pressure is so great that it overcomes the forces between the atoms. The surface stars is relatively cool. The Sun is only around 10,000° F on its surface. well below the several million degrees required for fusion.
Why does fusion take place only in the Sun's core and not in its outer layers?
Because the temperature needed to overcome the repelling nature of the two positively charged nuclei can only be found in the core.
Why is the inner core of the earth the scariest place?
No light only dark and hot. Always on fire.
What is thermonuclear warfare?
Thermonuclear warfare is the use of nuclear weapons in war, either tactically or strategically. Although the term "thermonuclear" technically applies only to the process of fusion, the term is loosely applied to conflict involving fission weapons, fusion weapons, or both (informal synonyms are "atomic war" or "nuclear war").
Does a bomb produce gamma rays?
Conventional bombs (dynamite, TNT, etc.) are not powerful enough to produce gamma rays. Gamma rays are only produced in a nuclear bomb or a thermonuclear (hydrogen) bomb where nuclear reactions take place.
How would mass be affected going to these other Solar System locations?
Within the solar system, the only place where mass would be affected is inside the sun. There, thermonuclear fusion could convert some of the mass to energy.
When a battery is used up why is its stored chemical energy used up?
Simply put, such a battery depends on a chemical reaction. Reactions can only take place when there is an inbalance between the chemicals. Once a balance is acheived then no more reactions can take place.
How are light reactions and dark reactions similar and different?
Differences: >light reactions occur in the thykaloid membranes, but dark occur in stroma >light reactions are light dependent, or they need light to take place, whereas dark reactions don't > dark reactions use the products of the light reactions >light reactions are the first step of photosynthesis and dark reactions are the second step Similarities: >both in photosynthesis Thats really the only similarity!!! hope this helps :)
Where does thermonuclear fusion mainly occur?
The only place in the universe where nuclear fusion can occur on its own is in the interior of stars. After closely observing nature, and adapting its laws to fulfill human requirements, our advanced civilization has succeeded in creating nuclear fusion at will, on a small scale. Unfortunately, the only useful application successfully developed so far with our superior intellect is the construction of nuclear bombs and weapons.
How do you get mw2 global thermonuclear 360 war on xbox?
You need to do some hacking to get it, considering that it's only programmed into the game partially.
