thanks for these replies, most of my questions were very well answered but one which was complety forgotten, how does energy affects molecules ( that's what I meant by micro level )
In Ox/Red reactions there 3 factors that can speed up a reaction between 2 compounds:
the first being a greater concentration, which is pretty easy to comprehend.
What I don't understand is how heat affects the speed of a reaction ( at a micro level)
and how is adding a third component to...
one of the searches led to something like '...The source of this mysterious gravity is known as the Great Attractor. What it is, exactly, is still unknown.'
and I posted the topic after I did a research on google, but haven't understood it quite well
some objects of the same material can be broken applying different amounts of strenght in a certain way, and this goes back directly to their shape and their mass.
and to break any object we have to put an amount of pressure sufficient enough and in the optimum places to get the best results...
I want to know about the center of our galaxy, and every other galaxy by the way, I heard that the condensed matter and light comes from a Super massive black hole that 'aspires' everything around it & I want to know if it's true ( If we have proved it ) or is it just a suposition, & by the way...