Show med Möbius-maglevtog i Nidzica
The show was held outside in sun and over 25 degrees Celsius, which had a noticeable effect on the levitation equipment and use of liquid nitrogen for cooling, compared to previous exhibitions inside and/or in cooler surroundings. As we can see on the video below, the larger black train is not sufficiently cooled, in that the superconductor is partly above its so-called “critical temperature” where it can no longer hold on to the magnetic field of the Möbius Track, and therefore falls off. The smaller blue train is cooled sufficiently and can fly around the track without falling off even when it is upside down:
Parents and children of all ages showed up and visited the different exhibitions at the picnic, with the Möbius Maglev show as the centerpiece. In addition to the physics of superconductivity and magnetic levitation itself, it was important to explain the safety precautions when working with liquid nitrogen and superstrong magnets, with suitable demonstrations using balloons and metal objects.
Before we could stop him, one unfortunate visitor that wanted to test the strength of the magnets, decided to put his mobile phone on the magnetic track… Indeed it was hard to pull the phone away from the grip of the magnets, but this “experiment” also proved that our warnings are not just for fun; the mobile phone did not work afterwards, and we do not know whether it was possible to make it work again.
Aside from this unfortunate incident, however, everybody enjoyed a lovely day and the excitement of quantum levitation in all directions. The audience saw large magnets levitating above superconductors, ultrathin superconductor plates levitating very high above magnets and the superconducting train flying around the Möbius Maglev Track.
In the words of Krzysztof Margol on behalf of the organizers:
Thank you very, very much on behalf of so many people for arrival and a fantastic show. We wish to book the Möbius show right away for the first Saturday of September 2014, please reserve this date. The reactions and interactions that I received on and after Saturday are fantastic. You can see the photo galleries on the website of the Olsztyn newspaper, we are waiting for the printed version. Sensational show and presentation, perhaps indeed the huge interest on Saturday can actually inspire somebody to become a “little Einstein”.
More photos by the Gazeta Olsztynska newspaper: