No you don't need to rely fully on vision. You can observe something by feeling it, tasting it, smelling it, or hearing it.
beacuse of there good qualities that can observe him a smallest detail
Observe is a verb
it can't observe itself
the world
An astronomer need not have any particular need to observe any part of the sun's atmosphere.
No you don't need to rely fully on vision. You can observe something by feeling it, tasting it, smelling it, or hearing it.
a telescope
the receptionist needs to observe the following: if they need a cup of tea
to observe the solar system
a hand lens check answer
The umbra.
If you don't observe the safety rules in a laboratory, you or someone else may be injured, made sick, or killed.
The need to observe personal protection and hygiene procedures at all times is critical. This will prevent any form of germ infection from getting to the body.
because if you don't you could get hacked, etc.
No. If you carefully study or observe a subject it won't help you sleep better. You need to think and dream, not study or observe.
You need to provide more information in your question.