something..
something goes on.
They do something, or have a chemical reaction
it sinks
Dejavu
To observe is to see what happens; to experiment is to see what happens, and then to see what happens when you change something.
if you have ESP you will know what happens without seeing it
Do something and then see what happens.
Experimentation means trying something to see what happens. When this is done by scientists, experiments can be complex, and very careful measurements and observations are used to learn as much as possible. Nonetheless, they are still trying something to see what happens.
probably something very bad, go to a doctor.
they have to get something and put it in a hand and see who has the ball first?
because they are able to see what happens and discover something
When you foresee something and it happens, some people call it dejávu, others may call it prophecy. Depends on your forté
The answer is that the image appears on your retina
You're either mistaking something that is not the devil, or flat out hallucinating.
Nothing happens if you see the same thing twice. People who are said to have already experienced something before it actually happened are said to be having deja vu. This means a person is doing something or seen something they feel they've already done before.
if something happens to you it oviesly matters but it depends on what happens to you on what you do.