I have a small 'cryostat' which I would like to fill with liquid helium to conduct an experiment. It consists of a circular plastic kitchen measuring cup 3 inches wide at the top, 2 and 1/4 inches wide at the bottom, which is flat, and 1 and 1/2 inches deep. The plastic wall/floor is about 1/8th inch thick. The cup is surrounded by rigid foam used to insulate houses, which varies from 1/8th inch to about 1 inch in thickness. I've used this homemade 'cryostat' in earlier experiments with liquid nitrogen, and never had any problems. I have a 1/4 inch by 2 inch niobium-titanium alloy rod, drilled and tapped at both ends to accept 6-32 machine screws. Currently 22 gauge wires are secured to both ends via metal grommets with tabs, to which the wires are soldered, and the grommets are tightly secured with 6-32 screws. I'm currently designing a bracket that will suspend the rod slightly above the bottom of the cup. The plan is to fill the 'cryostat' with liquid helium and pass a large current through the rod. The whole experiment would probably take 15 or 20 minutes. I intend to take this setup to a laboratory that works with liquid helium. So my question is would it be possible to transfer liquid helium from a dewar into the cup, and how exactly would it be done? I was just reading in a book "Dark Sun" by Richard Rhodes, about the making of the hydrogen bomb, that special techniques were required to move liquid helium from one container to another, but there was no elaboration. Thanks for any answers.