Video Image
Video URL
https://www.youtube.com/watch?v=t-rxwYMrWMs
Video Description
Two things we need to know: 1. Super conductivity phenomena hold the property of no current resistance. so no energy lose. 2. If we set an external magnetic field on a closed conductive loop (ring! in our case) and change the magnetic field, currents will appear such that the total field will be unchanged (because currents produce magnetic field). Story: we use the non energy lose and the field conservation to lock a magnetic field in a super conductive material (our material: YBCO - Yttrium barium copper oxide). The YBCO at a normal phase is non-conductive. He become superconductive at about 90 Kelvin (which is about 183 Celsius). so we need to freeze he's ass to put him in SUPER CONDUCTIVE PHASE (which of course make the material conductive!) We use a MAGNET to induce constant external magnetic field and then we remove it. Removing the field is basically a change in the magnetic field through the YBCO ring. Field conservation (its called Lenz's Law if interested) cause currents to show up and they Produce a MAGNETIC FIELD!! So we transformed a non magnetic material into a magnetic material which can hold forever and ever and ever as long there is no energy lose. good luck .
Video Co-Creator(s)
Daniel Bannit, Ben Gurion University
Video Creator Bio
Two normal physics students. One is the strong guy and the other is the beautiful one. We study at Ben-Gurion University and were partners at the teaching labs. We love coffee. one drinks more turkish coffee and the other more enjoys cappuccino. One time we went to the desert together with 4 more friends and we succeeded to calculate the trajectory of most of the celestial object except comets due to lack of data but we made a pretty ruff estimation which no one knows if its good enough or not. thanks!