Lunar eclipse

I can say picture from space but, you dont belive anyone expect yourself soo

why a Lunar Eclipse proves that the earth is an oblate spheroid

Easy, shadow of earth is slowly eating a moon, before 45min I went outsied and saw half-moon, banana moon or lunar eclipse. Moon in 340.000KM away from earth so that means shadow is more than possible.

how do you prove such thing

Lol?

that the earth is 340.000 km from the moon

How do I prove it's 340KM. Maybe because they were on moon and before that scinetist counted distance by moon position.

hmmmm, not a strong enough proof

try again please

If Earth is not making that shadow, than what does it?

idk, could be many different things

your the one that must justify it

Ok

There are two ways to measure the distance from the Earth to the Moon on your own: using a Lunar eclipse and using parallax.

interesting

You don't know parallax means right?

I googled it now

but please procede

we can also use the light speed

Parallax is a displacement or difference in the apparent position of an object viewed along two different lines of sight, and is measured by the angle or semi-angle of inclination between those two lines.

Use light speed?

Lights needs 1.25 seconds from earth to moon

ya

shoot a laser beam on da moon and see how much time it takes to come back

That means 8 earth, round earths can fit in that distance

It practically needs 2.50sec for laser beam to come from moon

Am I wrong?

idk

but it would be

299 792 458 * 2.5

Lol?

and there ya go, distance from the earth to da moon

So whats distance

299 792 458 m/s, the speed of light

749.481.145 meters

There are light seconds, light minutes, hours, and light years. Which one?

it's the speed of light on meters per second

299 792 458m/s*2,5s

cancel the two s

Ok, and even that far, shadow of Earth isnt possible on moon?