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medical technology is producing of junk. with two syringes you can make a very beautiful
pump. you need a fat syringe and a thin syringe. now remove the plunger from the big syringe
and then remove the black rubber piston from it. take the small syringe and put a ball
bearing in its barrel and put its piston as a stopper. now ball will act like a little
valve. take the rubber piston of the big syringe and make a hole in it and then apply glue
to the nozzle of the small syringe and you stick the piston of the big syringe in it.
you will see that there will be a clear nozzle. now make a hole in the small syringe. this
will be the port from where the water will come out or the delivery port. now put a small
steel ball bearing in the big barrel. put the small piston with syringe inside it. your
pump is almost ready now. you can see the balls moving, they act like valves. place
it in a mug of water, hold the lower one and move the upper syringe up and down. soon the
valves will open and close, water will be filled in and water will gush out at very
large speed.