WHY WE HAVE INVERSE SQUARE LAW
ORAC HAVE FLAT LINE AND MATHEMATICA
http://web.media.mit.edu/~raskar/trillionfps/
http://youtu.be/9RbLLYCiyGE You have an inverse square law if you setup properties so that light radiates in 3D.
The key point you ignore is light can be made not to go in 3D it can be made to go in 2D and 1D if you want.
The answer is given in the link
http://en.wikipedia.org/wiki/Inverse-square_lawHERE IS THE QUOTE: The inverse-square law
generally applies when some force, energy, or other conserved quantity is
evenly radiated outward from a point source in three-dimensional space.
NOTICE IT DOES NOT SAY LIGHT ALWAYS TRAVEL THIS WAY.
You are apply that law that is how light
always travels and that is a lie.
To make light work like that in a light bulb you get a filament and wind it in a coil to make the beam fly in every direction so the 3D dispersion is a feature of the bulb filament not light itself.
A laser doesn't have that coiling and so the light simply flies in a straight line
You can actually make a laser like a light globe by firing it off a rotating and moving platform
Again pretty easy for even children to understand.