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Jun
26
awarded  Nice Answer
Jun
26
comment How much does the Earth's rotation affect a golf ball?
@Padarom: Yes it would still affect it. The ground doesn't magically prevent the "Corellolis effect" from existing. However, the ground friction would partially counteract the effect by "dragging" the ball along with Earths rotation.
Jun
21
comment 1 Tesla electromagnet?
Materials saturate, meaning that the impressive B = 200000*knI hits a limiting B, above which the relative permeability drops off to 1, bringing us back to B = knI
Jun
21
comment Effect of humidity on static electricity
The main mechanism is probably the adsorption of atmospheric water molecules on surfaces, a function that depends on humidity. This water film, which may even mobilize ions, makes surfaces more conductive (NOT the air!). Like anti-static spray, this allows charges to dissipate.
Jun
21
suggested suggested edit on Can electromagnetic fields be used to shield electromagnetic radiation?
Jun
18
revised Single-mode fibers and ray-theory of light
deleted 4 characters in body
Jun
18
answered Single-mode fibers and ray-theory of light
May
5
comment Is it possible to create artificial gravity by magnetizing iron in the blood stream?
@Anixx: Yes that is a good way to put it. I just made the scaling laws more robust.
May
5
revised Is it possible to create artificial gravity by magnetizing iron in the blood stream?
added 58 characters in body
May
1
comment Magnetic field resistance material: are there any?
Ok thanks and welcome to Stack exchange!
Apr
30
comment Magnetic field resistance material: are there any?
If you like the answer please click the checkmark to "accept" it (you get 2 free rep when you accept answers). Speaker and hard disks magnets are shielded with a thick piece of steel or similar material, which act as a "conductor" of magnetic fields.
Apr
30
answered Magnetic field resistance material: are there any?
Apr
26
revised What Happens When A Gravitational Wave Interacts With Another One?
deleted 142 characters in body
Apr
26
answered What Happens When A Gravitational Wave Interacts With Another One?
Apr
26
comment What does “optical conductivity” mean?
Maybe it is AC conductivity but at such a high frequency that instead of electronically generating an AC signal and measuring the conductivity you use light.
Apr
7
comment Calculating the most probable radius for an electron of a hydrogen atom in the ground state
We use area because we want the probability that r is exactly 0.1 nm (technically probability density), not the probability that r is less than 0.1 nm.
Apr
7
comment Thomson's jumping ring experiment
Yes the ring will move toward (be attracted to) the field when the flux drops, but the ring will tend to repel more than attract overall (the explanation is complex, however). See youtube.com/watch?v=dw73DcwIX-A for a similar example: you get more repulsion on average.
Apr
7
revised Calculating the most probable radius for an electron of a hydrogen atom in the ground state
added 75 characters in body
Apr
7
comment Thomson's jumping ring experiment
At 60Hz it will levitate in a relatively fixed place. The current is constantly changing. Each "pulse" causes a repulsion of the ring.
Apr
7
answered Thomson's jumping ring experiment