Is that the Ω (ohm) symbol you are referring to? An ohm is the unit of electric resistance.
No one invented light. Light is a natural phenomenon produced by the suns heat energy. If you mean the light BULB then it was Thomas Edison
The only thing in our solar system that gives off light of its own is the sun.
The phrase 'give off light' means to have a lot of light.
its from the little amount of light reflecting off the retna You mean retina? Just for the record, the "glow" come from a reflective layer behind the retina. The eyes themselves don't glow.
Photosynthesis
What do you mean like did he invent the light bulb because if you do mean that then yes he did invent the light bulb
If you mean the little metal thingy that loops around, it's a filament.
the horseshoe shaped light is your low tire pressure warning light. check your tire pressure in all of your tires. the light will turn off once the tires are at the proper PSI.
Burned out exterior bulb
Tire pressure warning light
Turn it off for a little while and see if it is loose in the socket (screw it in tighter). It could also be a short where the bulb screws into.
Uncorrect tire pressure
The "BRAKE BULB" light means that a brake bulb is not working and may require replacing.
You probably have a light bulb burn.
it means that a bulb is burned out
== == well first what is a light bull do you mean a light bulb?
It means that the power consumption of the bulb is 40 watts.