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location Lowell, MA
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visits member for 1 year, 8 months
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I'm an engineering consultant specializing in the applications of DSPs, FPGAs and microprocessors -- both hardware and software development.

You can see my resumé here.


Aug
20
awarded  Commentator
Aug
20
comment amplification of magnetic field
@user1964232: Can you describe in a little more detail what the concept of "magnetic signal" means to you?
Aug
20
comment Are voltages discrete when we zoom in enough?
@user22180: Note that I carefully didn't say "defined", I said "relationship". The OP's question is whether the quantization of charge implies a quantization of voltage, and my example shows that it doesn't.
Aug
20
comment Are voltages discrete when we zoom in enough?
@sbell: The article also says, "There is currently no proven physical significance of the Planck length".
Aug
20
comment Are voltages discrete when we zoom in enough?
@sbell: Yes, I was wondering if someone would bring that up. But the Planck length doesn't imply a quantization; it simply puts an ultimate limit on our ability to measure position.
Aug
20
comment amplification of magnetic field
@NikosM.: The question is ambiguous, and I think you have misunderstood it. I interpret it as asking about amplifying a magnetic signal, using a direct analogy to electrical signal amplification. You seem to be interpreting it as being about concentrating a magnetic field (as an analogy to doing the same thing to an electric field?). I guess we'll just have to wait until the OP clarifies his intent.
Aug
20
awarded  Nice Answer
Aug
20
comment amplification of magnetic field
@NikosM.: But the point is that the fundamental mechanism is magnetic; the fact that the signals are transduced from and to electrical signals is merely an implementation detail.
Aug
19
awarded  Yearling
Aug
19
answered amplification of magnetic field
Aug
19
answered Are voltages discrete when we zoom in enough?
Apr
19
comment Faradays Law: How Does Curl E Change Over Time In a Coil?
You can't assume that the derivative tends toward zero unless you introduce some other component that's going to limit the current in some way. For an ideal inductor and an ideal voltage source, the current will indeed increase indefinitely.
Jan
11
awarded  Citizen Patrol
Jan
7
comment Relationship between height and velocity in conservation of mechnical energy
I would just like to point out that your energy equation isn't comnplete. A rolling marble also has angular momentum in addition to its linear momentum.
Jan
7
answered Energy loss in pipe/hose with hot water (how its affected by pipe/hose size, temperature)?
Jan
6
comment Energy loss in pipe/hose with hot water (how its affected by pipe/hose size, temperature)?
Rock wool (asbestos) is an environmental hazard. You'd need a really good reason to use it over, say, fiberglass (less of a hazard) or closed-cell foam pipe insulation (no hazard).
Jan
5
awarded  Supporter
Jan
5
awarded  Teacher
Jan
5
answered How do superconducting materials float in magnetic field?