You need to have such a high temperature so that the positively charged nuclei can get close enough together for the strong nuclear force to be greater than the electromagnetic repulsion between them.
got to get enough energy to get positively charged nuclei that strongly repel each other to collide head on and stick together. Lots of heat and pressure is easiest way.
For nuclear fission reactors there is no critical temperature, though they do have a temperature coefficient which makes the efficiency of the chain reaction vary slightly with temperature. This can be negative or positive, obvously a negative coefficient is preferred and is safer. Nuclear fusion is another matter, and very high temperatures are required in tokamaks to get fusion started
condense
Friction of the particles will increase the temperature. This is how a microwave works.
The vibrate less vigorously.
Ice will melt when the surrounding temperature is above 0.C (Zero Degrees Celsius)
The minimum temperature is about 10,000,000 degrees Celsius.
Hydrogen undergoes nuclear fusion to form helium at a temperature of 107 K
Between 10 and 15 million degrees.
The core of the protostar reached an extremely high temperature
For nuclear fission reactors there is no critical temperature, though they do have a temperature coefficient which makes the efficiency of the chain reaction vary slightly with temperature. This can be negative or positive, obvously a negative coefficient is preferred and is safer. Nuclear fusion is another matter, and very high temperatures are required in tokamaks to get fusion started
5 min
The core will reach between 250,000,000 to 500,000,000'C at its stable temperature. Beforehand it will rapidly gain heat from hundreds of thousands to its stable temperature, where it can begin the process of nuclear fusion. Hope that helps!
Addition and subtraction.
one particle has to travel rely fast
During the main sequence of the star.
This is a rule in some versions of darts; the World Championships does not require it, for example.
The primary things that happen before a blizzard are a drop in temperature and an increase in cloud cover. The sky will begin to darken as the imminent storm approaches.