The blue flame is the higher energy
Happy 200th birthday Robert Bunsen! I know Bunsen coz I have used a Bunsen burner. So I checked him out. & apparently Bunsen researched the emission spectra of heated elements. Is it about the colors of flame? Like how yellow flame is the lower energy, and blue flame is the higher energy ☆ Particle
I think that's how they determine a star. Simply by its color.
OK I have yet to work out how the color changes.* Is it at the atomic level - when stuffs get energized, the vibrations emit photon (light)? And so it glows. The light bulb is an example - a metal filament wire is heated until it glows.
Then we can run that light through a prism, & analyze its color spectrum. [spectral analysis] This is how we know what a star is made of bcoz chemical elements emit certain lines in the spectrum. We can also discover its temperature, speed, distance and age.
Spectrum of hydrogen, helium, lithium, oxygen, carbon and iron
HIGH | LOW |
* do colors change when particles gain, lose energy
I seek refuge in Allah SWT from errors
Only Allah SWT Knows Best والله أعلم
Visible Invisible | Supernova | Particle | Pulse | Genie |