It all depends on the gas and concentration, and of course, the safety factor. Obviously any gaseous anesthesia will do it. Many organic solvents will do it to some extent. Of interest would be nitrous oxide (laughing gas) or various ethers. Too much carbon dioxide or carbon monoxide will do it, each with different consequences. And, of course, anything that displaces oxygen can knock you out.
Anesthesia...
It cuts the cross of nerves of pain being sent to the brain basicly shuts your whole system down or in this case sleep.
I started to knock on the door. I will knock before I open the door.
Neutral gases do not; ionized gases do.
Gases.
Its a truly renewable power source, with a very low "fuel" cost. No green-house gases, no smoke.
conscious and unconscious- APEX
yes
In boxing, K.O. Stands for knock out. Being knocked unconscious.
Knock them unconscious then they wont be able to bother you
Knock the patient unconscious.
Knock the patient unconscious.
There are many gases which can be referred to sleeping gas, as they can make people unconscious or asleep. One of the the most famous is Chloroform (vapors)
you have oo knock your head on something hard and pass out this could cause notcia(pronounced nor-zi-a)
The Bear Hug is meant to look that it is driving the wind out of someones body, and crushing there internal organs.
a rolling pin Wrong, anything that you hit someone with WILL hurt them!
I would presume so, if you pinched a nerve that made the person fall unconscious or feel tired.
no.
Knock Knock who there is the start of a joke. This can not be answered because some people have different answered.