I Is it possible to create an electromagnet to pull itself to Earth?

AI Thread Summary
Creating an electromagnet that can pull itself to Earth is theoretically possible if it is positioned over ferromagnetic ground, as it would attract the ground and itself. The design must be under 500 pounds and capable of tripling or quadrupling its weight while using no more than 1,470,997.5 joules of energy. If the ground is not ferromagnetic, an external object, such as a large piece of steel, would be necessary for the electromagnet to exert a pulling force. The feasibility of this project hinges on the materials used and the energy constraints. Overall, the concept presents interesting challenges in physics and engineering.
Ghostxodus
Messages
1
Reaction score
0
TL;DR Summary
I want to know if it is possible to create an electro magnet that can pull itself to earth. Not just using gravity but create more weight if you know what I mean.
I am not a physicist by any means I just have this question that has been on my mind for a while and if anyone can help me with that it would be great. If it can be done I would like to try and attempt to do it. Some My goal is that it has to be like under 500lbs and be able to triple or quadruple its weight. While trying to use less than or equal to 1470997.5 jules. Thanks.
 
Physics news on Phys.org
If your standing over ground that happens to be ferromagnetic, then yes, the electromagnet will try to pull the ground up and itself down. Otherwise, you'll have to put something in the ground for the electromagnet to pull on - like a ton of steel.
 
  • Like
Likes davenn and berkeman
Thread 'Motional EMF in Faraday disc, co-rotating magnet axial mean flux'
So here is the motional EMF formula. Now I understand the standard Faraday paradox that an axis symmetric field source (like a speaker motor ring magnet) has a magnetic field that is frame invariant under rotation around axis of symmetry. The field is static whether you rotate the magnet or not. So far so good. What puzzles me is this , there is a term average magnetic flux or "azimuthal mean" , this term describes the average magnetic field through the area swept by the rotating Faraday...
Back
Top