The sun - Flat Disc??

If the sun was a flat disc with a diameter of 32miles?

Would this not only illuminate a circulated area on the earth with a diameter of 32miles?

No, take a desk lamp. Is the area on the wall light up the same diameter as the desk lamp? I think not.

No, take a desk lamp. Is the area on the wall light up the same diameter as the desk lamp? I think not.

It's a sphere though a desk lamp...well it aint flat thats for sure.

A laser is not a sphere, in illuminiates its circumfrence, which is what a flat disc sun would do.

A light bulb is indeed 3 dimensional, but light travels both in the form of waves and particles. As they travel in waves, they spread outwards much like sound does. This being so, it does not matter if the surface is flat it will still cover a larger area than the sun itself.

A light bulb is indeed 3 dimensional, but light travels both in the form of waves and particles. As they travel in waves, they spread outwards much like sound does. This being so, it does not matter if the surface is flat it will still cover a larger area than the sun itself.

so why does a laser differ then?

Laser light is amplified in a way that stimulates the emission so that it is similar in wavelength, phase, and polarization. This can be explained by quantum mechanics; but these three traits allow the light to have a coherence to form a beam which is a laser.