What Are the Numerical Breakdowns and Variations of Earth's Magnetic Fields?

  • Thread starter Thread starter Randomize
  • Start date Start date
  • Tags Tags
    Magnetic Numbers
AI Thread Summary
The discussion revolves around an experiment attributed to Nikola Tesla, where a magnetized sphere was launched into the air, supposedly mimicking Earth's magnetic field. Participants express skepticism about the validity of this experiment, with one requesting references to support the claims. A book titled "Tesla: Man out of Time" by Margaret Cheney is mentioned as a potential source for verification, though specific details are lacking. The main inquiry focuses on obtaining numerical data regarding Earth's magnetic fields and their variations, as well as the necessary electrical charge for replicating such an experiment. Overall, the conversation highlights a blend of curiosity about Tesla's work and the need for scientific validation of the claims made.
Randomize
Messages
4
Reaction score
0
through lots of research I came across a little experiment conducted by Nikola Tesla. This Experiment consisted of magnetizing a sphere to the same the Earth produced in the given area where the experiment was to take place. Taking the spin of the Earth approximate wind effects on the sphere a location was determined and the area was informed of falling objects. Once the Sphere was charged it shot into the air, apparently with great force and speed, never to be seen again.

with that said, I would like to know the numerical break down of Earths magnetic fields and variances that would have and would allow an experiment like that to take place. This would include the construction of the the magnet. How much electricity would be needed to charge a given material to permit the to be repeated?
 
Physics news on Phys.org
Welcome to PF!

Hi Randomize! Welcome to PF! :smile:
Randomize said:
through lots of research …

:confused: Sorry, but so far as I know this is rubbish …

Tesla did no such thing …

can you please provide a reference and a link for this? :redface:
 
I was young at the time so my note taking is not what is today. But it was a biography written about Tesla by a female author. it was worn by the time I got to the book but I did mange to get all the reference used to write the book. I will look over my notes and see if I did write down the book and ISBN and give that information. If not I will do the research to find the book and then post the information for verification.
 
Okay I found the book, it is "Tesla: Man out of Time" written by Margaret Cheney. The page number is unknown to me. I no longer have the book to get it for you. This should help to support my statement even slightly.
 
While I wait for the book the main point of this post before it's forgotten is acquiring the magnetic wave length(s) and numerical representation of those wave length(s) for the planet. Being that the wave length(s) vary depending on where one is on the planet then a mean number should be able to be acquired. This is what I am looking for.
 

Thread 'Maxwell stress tensor'

This is from Griffiths' Electrodynamics, 3rd edition, page 352. I am trying to calculate the divergence of the Maxwell stress tensor. The tensor is given as ##T_{ij} =\epsilon_0 (E_iE_j-\frac 1 2 \delta_{ij} E^2)+\frac 1 {\mu_0}(B_iB_j-\frac 1 2 \delta_{ij} B^2)##. To make things easier, I just want to focus on the part with the electrical field, i.e. I want to find the divergence of ##E_{ij}=E_iE_j-\frac 1 2 \delta_{ij}E^2##. In matrix form, this tensor should look like this...
View full post »
Thread 'Applying the Gauss (1835) formula for force between 2 parallel DC currents'

Thread 'Applying the Gauss (1835) formula for force between 2 parallel DC currents'

Please can anyone either:- (1) point me to a derivation of the perpendicular force (Fy) between two very long parallel wires carrying steady currents utilising the formula of Gauss for the force F along the line r between 2 charges? Or alternatively (2) point out where I have gone wrong in my method? I am having problems with calculating the direction and magnitude of the force as expected from modern (Biot-Savart-Maxwell-Lorentz) formula. Here is my method and results so far:- This...
View full post »

Similar threads

I Charge movement relative to magnetic field frame dependence/invariance
Replies
5
Views
916
Forces on magnets in a uniform magnetic field
Replies
2
Views
2K
Induced current in a coil from a constant uniform magnetic field?
Replies
5
Views
2K
What if Earth was exposed to a huge magnetic field?
Replies
6
Views
1K
Calculating the magnetic field in this seemingly simple case?
Replies
3
Views
1K
Extend Magnetic Field Density from magnetic object's surface?
Replies
3
Views
5K
What exactly is magnetism, anyway?
Replies
7
Views
13K
I Do black holes have magnetic fields?
Replies
44
Views
3K
Lorentz force on a wire in earth´s Magnetic field?
Replies
26
Views
10K
I Is this analogy between Magnetic Force and Gravitational Force accurate in helping to understand what contributes more to a stronger magnetic force?
Replies
11
Views
2K

Hot Threads

Recent Insights

Back
Top