When HN users recommended it
1 HN user recommended this in 2023, in one comment.
20072026
Each tall tick is one HN user's first recommendation. A short tick is the same user again. Click a tick to jump to the comment.
1 HN user recommended this in 2023, in one comment.
Each tall tick is one HN user's first recommendation. A short tick is the same user again. Click a tick to jump to the comment.
not qualified to explain the levitation, seems to be some sort of self-stabilizing magnetic field due to zero-resistance current.
But there is plenty of magnetic levitation right now without power:
https://www.amazon.com/dp/B01N2Z9QAP
also, balloons.