[–] rbanffy 4y ago ↗ The obvious next step is to build one large enough for a person. [–] pfdietz 4y ago ↗ Not possible. The required magnetic field increases with the size of the levitated region, and would greatly exceed limits set by strength of materials. A magnetic field that strong might also be directly harmful. [–] mrfusion 4y ago ↗ Why not 200 frog sized fields? [–] pfdietz 4y ago ↗ The force is proportional to ∇ B^2, so the necessary field goes as sqrt(linear dimension of the levitation region). [–] rbanffy 4y ago ↗ > A magnetic field that strong might also be directly harmful.Maybe make a monkey-sized one first. ;-) [–] plebianRube 4y ago ↗ In handheld gun form?
[–] pfdietz 4y ago ↗ Not possible. The required magnetic field increases with the size of the levitated region, and would greatly exceed limits set by strength of materials. A magnetic field that strong might also be directly harmful. [–] mrfusion 4y ago ↗ Why not 200 frog sized fields? [–] pfdietz 4y ago ↗ The force is proportional to ∇ B^2, so the necessary field goes as sqrt(linear dimension of the levitation region). [–] rbanffy 4y ago ↗ > A magnetic field that strong might also be directly harmful.Maybe make a monkey-sized one first. ;-)
[–] mrfusion 4y ago ↗ Why not 200 frog sized fields? [–] pfdietz 4y ago ↗ The force is proportional to ∇ B^2, so the necessary field goes as sqrt(linear dimension of the levitation region).
[–] pfdietz 4y ago ↗ The force is proportional to ∇ B^2, so the necessary field goes as sqrt(linear dimension of the levitation region).
[–] rbanffy 4y ago ↗ > A magnetic field that strong might also be directly harmful.Maybe make a monkey-sized one first. ;-)
[–] guga42k 4y ago ↗ A.Geim got an Ig Nobel prize for the frog paper. Then got real Nobel prize for graphene research. Probably the only scientist who got both.
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[ 2.6 ms ] story [ 27.2 ms ] threadMaybe make a monkey-sized one first. ;-)