Aircraft engine spray blue fire and red color of the fire, what is the difference between the two?
Visible photons are enhanced in the order of red orange, yellow, green and blue.
From the point of view of nuclear physics, the color of the flame produces the high temperature so that the electron energy is strengthened, the electrons move to the high energy level, absorb the energy, and at the layers of the flame, the electrons also release energy to the low energy level transition and release a photon to form visible light
Engine flame color is different, the engine flame color determined by a number of factors, which from simple to difficult, for a variety of reasons.
Obviously, the blue is higher than the red energy, need to absorb the larger energy to jump to a higher level and then release the photon, so the blue flame temperature is higher than the red.
