Question

the astronomer copernicus was the first person to publicly state that the earth is

Answer 1

I think Copernicus said that the Earth was the center of the universe and that Earth is round (but I'm not sure :/)

Answer 2

do u think so

Answer 3

yeah, wait lemme search it for you :)
here you go:
http://csep10.phys.utk.edu/astr161/lect/retrograde/copernican.html

i'm right :)))

Answer 4

ok thanks

Answer 5

No, the link indicates correctly that Copernicus believed the Sun is the center of the universe, though he was not the absolute first to state that.

Answer 6

oh ! then i'm wrong
sorry :/

Answer 7

then who's the other guy who told that the earth was the center of the earth?

Answer 8

*universe

Answer 9

We usually call the Earth-centered model the Ptolemaic model after Ptolemy, who lived many centuries earlier.

Answer 10

Good work.

Answer 11

not Aristotle? O.o

Answer 12

ok now who can define what friction is?

Answer 13

friction is a force that opposes the object's motion or prevents it to move
now i'm sure with my definition ... XD

Answer 14

am a teacher u re wrong

Answer 15

O.O
okay, then can you please teach me the right thing if I'm wrong

Answer 16

heliocentric model of solar system