What can you observe?

It's a personal thing, to observe: to observe a religion, a belief; to believe in a philosophy; to accept an ideology. People might be looking for structure for their daily lives, a support...

to look at something ;to find out what it is

by placing the gas into a container of any kind and it will simply fill up the whole container, therefore you can observe it and what it does.

notices have to be observed..

Its not the result yet but theories:)