First Superconducting Transistor Created

holy_calamity writes "New Scientist reports that the first working superconducting transistor has been created, by researchers at the University of Geneva. Field effect transistors with zero electrical resistance would allow much faster operations. Only drawback is they need to be supercooled, something that may be addressed by improving the materials used."

Comments

Bad timetable.

[Tatarize]

We have no idea how far away we are. We don't fully get it and are pretty much trying substances at random. We might figure out something that works next year or never. It's not something you can predict with any accuracy.

Re:Gift for understatement

[UnderCoverPenguin]

Having LIQUID NITROGEN in my desktop PC would seem to present maintenance and disaster potential an order of magnitude greater than that: what if the enclosure ruptures and explodes like a capacitor? What if it leaks nitrogen into the room and asphyxiates my cat sleeping on the floor?

Years ago, I did Unix administration for the School of Science for a small university. The server room was behind the NMR lab (with its large superconducting magnets) and I had to go through the NMR lab to get to the sever room. In fact, the sever room was also used to store a 100 litre tank of LN and 100 litre tank of LH. The tanks will not explode. In fact, they leak a tiny amount of nitrogen and helium all the time. Even in the closed sever room (it had its own AC, seperate from the building AC), this was not a problem.

Also, a PC is not like a superconducting magnet: It will not 'quench' and cause the LN to rapidly evaporate. Even if it did, a PC is not going to contain much LN - less than 1 litre. A magnet (at least back then) would have 50 (or more) litres of LN (and LH). The affect on a the nitrogen level of the 20x20 room was negligible, even at floor lever. And, if your PC did quench, the noise of the escaping gas would almost certainly wake your cat or dog (with the likely size of the relief orifice in the PC would result in a piecing ultrasonic whistle, which cats and dogs cat hear).

(FWIW, the most, be far, dangerous aspect of a magnet quench is the helium. But that clings to the ceiling. Being cold, it also condenses water vapor, forming a cloud.)