it depends on the level of brightness.

Are these simulations done with the light source billions of radii away from the sphere?

lol maybe in your area it is

I actually just made a quick simulation with a parallel light.

on a sphere

It makes all physics on light thrown out the window.

you guys can test out light physics better in unity if you want

better demonstrations there

I just did it in After Effects

This is like saying if you are playing pool it matters not where a pool ball is hit.

yeah make the light the same relative distance away from sphere as spherical earth models it to be

What causes moon phases

which is like billions of radii

i'm gonna need a really bright light lmao

the position of the moon around the Earth

I don’t get it

The Moon is like a movie screen. We see what is projected from it. So how it all works.

Ohh ok

where's the projection from

the sun

we should also see the projection then

From further up in the Firment.

Then shouldn’t the moon be tilted or something

if it's real that's a huge projector

it should get power from somewhere

Because u said moon flat

the moon is't on a tilt (i don't think)

yes, the moon produces it's own lightsource which slowly changes and causes the phases

Ok which is it

why would it change if it produced its own lightsource

There’s been like 3 theories here

the moon orbits the Earth faster than the earth rbits the sun so you will have different phases of moon

Nine pictures of the Moon. Taken at the same time. The Moon is all over the place. The creators not in the same place in even two of the nine pictures.

@Steve Angell Here's a quick simulation I did up in After Effects
https://i.imgur.com/Px52sHC.png

probably because they were all taken from different perspective around the world

This was a round earth to prove the distance to the moon. It instead proved the moon is something other than a ball.

remember the military uses maybe 5x the money NASA uses

No

i meant the lightsource is changing position over time and lights up different parts of the moon at different times

so u blame it on NASA