The internet only just got over Lexus’ real working hover board, but as it turns out, a team of researchers from the University of Paris Diderot already built one, over 4 years ago (machine translation)!
Using the same principles as the hover board Lexus build, the researchers built a very expensive neodymium magnet track to test the board on. Only difference here is that they didn’t hide the magnets. The hover board itself was machined out of wood, and houses a large sealed metal tray which contains the superconducting bricks.
Pour in some liquid nitrogen through the funnel, and you’re ready to witness some of the quantum properties of superconductors! The board floats a few centimeters above the magnetic rails, and in their tests was able to lift people over 100 kg in weight (hint for most Americans… there are 2.2 pounds to one kilogram).
The funny thing is, the French researchers make no mention of BTTF, and instead, compare its likeness to the flying carpet from Arabian Nights… Seems like a bit of a stretch to us.
[Thanks for the tip Pierre!]
No reference to BTTF? I thought this was a pretty clear one
“Le Magsurf”
https://youtu.be/VRNU_D_UImk?t=189
Back to the future
https://youtu.be/7unIVflJaLQ?t=27
Wow thats alot of Pyrolitic graphite! I am 99.99% sure they mentioned BTTF considering at the end of the video they play the first part of the theme.
… and the closing credits identify the Back to the Future theme. Mind you they might have gone back to the past and re-edited the film.
Too bad it isn’t reddit, would have +1’d your comment for sure.
Since when was pyrolytic graphite considered a superconductor? Regardless, these impractical, hyped up demonstrations of a now-common scientific principle is starting to get old.
Pyrolitic graphite is much different than graphite. It is essentially graphene stacked, meaning when super cooled it superconducts. You can also float pyrolitic graphite on an array of four neodymium magnets at room temperature as its conductance is high enough to lock it in the magnetic field.
CaC6 is the best evidence so far for a room temp superconductor it is pyrolitic graphite intercalated with Ca+ ions.
Sorry I meant its diamagnetism alone is enough to be levitated at room temperature.
This isn’t pyrolytic graphite, genius.
Yah you are right sorry I was up for 36 hours before this, completely faded thanks for being nice anyway.
It’s not graphite, it is Cuprate (Yttrium barium copper oxide). Which is superconducting at liquid nitrogen temperature.
you are right thanks for clearing that up,
And then there’s this thing: https://www.youtube.com/watch?v=dyWo7_NVWBM that I guess uses an active oscillating magnetic field rather than superconductors. Works on any conducting, non-ferromagnetic surface, and doesn’t use any LN2. It does have an (apparently extremely short-lived) battery, though.
It also remains to be seen how much a loaded hendo board acts like a magnetic brake.
I can only imagine they tested that before they started announcing it to the media.
And then there is this https://en.wikipedia.org/wiki/Shanghai_Maglev_Train
a magnetic levitation train, or maglev line that operates in Shanghai, China. The line is the first commercially operated high-speed magnetic levitation line in the world.:
“The top operational commercial speed of this train is 431 km/h (268 mph), making it the world’s fastest train in regular commercial service since its opening in April 2004
Here I am…waiting for somebody to turn a helicopter upside down and call it a hoverboard….
very tricky to land apparently (unless you like been spun round really really fast )
You mean like a hovercraft ironing board? Been done, lots. Pretty crappy “hoverboard” but they do go over land and water. And have propulsion, so you don’t end up stuck in the ornamental lake.
My hovercraft is full of eels!
Here you go:
https://www.youtube.com/watch?v=Bfa9HrieUyQ
This and the Lexus build are hover boards like the Perendev motor is free power.
but these boards do hover and are explainable by science. they may not be practical but they do what they say.
Except the general consensus seems to be that everyone is expecting a hover board that can hover over any service… much like most recent companies have suggested in their advertising. So can they hover? Of course! Can they hover over anything except pre-constructed platforms/bases? NO
surface* not “service”. apparently I can’t brain today.
Yes, I remember seeing this on popsci.
wondered at the first place why the guys wear such big gloves when unpacking the magnets. then saw one of them at 1:35 with two bandaged fingers…
they were the first non-brazilian country to make a hoverboard.