Hello,
I would like to know whether it is possible to cause a person to enter deep sleep (state as an anesthetic by drugs) by using a specific voice or sound ...
Thanks.
Is there one way valve that allows a liquid flow in one direction and prevent air flow (under pressure) in the other direction?
Thanks for any help ...
The water is in a tank and I want them to flow through a pipe at the bottom of the tank (by the force of gravity)
Now I do not want that air will enters the tank back form the pipe while the pipe is open (in the pipe can be pressurised air)
What do you mean by active elements ?
Hello,
I do not really know if this is the right place to post this message ... if it's not then I'm sorry
I am looking for a valve that allows the flow of liquid but prevent air escaping out form let's say a sealed container ...
Is there such a thing?