Recent content by fleem

I think I see what you are saying. From a classical perspective I could say that if we devise a very tiny mirror that has measurable per-photon recoil, then that movement in the mirror sufficiently scrambles the photon phase and frequency to negate interference, and it does so on theoretical...

@Cthugha, are you saying that the destructive interference can be disabled at any time simply by observing the recoil of the laser? I'm not sure I understand that.

Thanks, Cthugha. I agree that photon behavior will depend only on the configuration within its light cone and that there will be the classical delays as noted. But what I don't understand is how a single photon will decide to self-interfere according to when the laser "on" switch was flipped...

A laser's beam is split and then recombined, and the two path delays are adjusted so there is destructive interference at a detector. Let's also say one of the two paths has a measurable delay over the other. Classically speaking, when the laser is first turned on, the detector would be...

Just do the same steps you did to make the first coil to make the second coil. And it will have a different 'excitation', of course. (Remember an excitation can be a source or a load). You don't have to tell Maxwell anything about the fact that its a transformer. Maxwell's job is to simulate the...

agree with above but throwing my wording in... For any typical BJT ckt, you almost certainly want a fairly constant bias current going in the base. It wouldn't do for that current to vary wildly with, for example, temperature. When you have a NPN (for example) BJT with grounded emitter, the...

You'd use the transient solver. Here are some rough steps (from my notes) for creating one winding: Create a solid copper ring. Create a section: create a coord system that intersect the part that should have a section, and make sure that coord sys is selected: modeler/surface/section Delete...

You can convert it to the frequency domain, upsample or downsample it accordingly, and then convert back to time domain. If you just want to do it to an existing file of time domain data, then most audio editors (audacity, cooledit, goldwave, etc.) can do it for you.

This works fine for me in python 3.x. Of course, I did have to initialize the array with prior data. I used i=2. Perhaps you could post a compete chunk of code that fails?

I just realized I missed an important consideration when talking about UWB for your case. A properly source coded (data compression) and channel coded (modulation that fills the channel) signal is indiscernible from noise in the eyes of someone unfamiliar with the data compression and modulation...

There are several reasons a pulse-based UWB system yields profoundly higher capacity than a narrow-band system, when the same average transmit power is used: 1. Contrary to some common misconceptions, channel capacity increases with an increase in bandwidth (when transmit power is the same)...

Beyond the initial definition of prime numbers, they effectively have a random component (so far) in our eyes. That random component prevents us from proving anything else about them except statistical behavior, and disproofs of conjectures by finding counter examples. The twin prime conjecture...

yungman's right, but I'll throw my wording in, also... Each amplifier adds some noise. The noise contributed by a given amplifier is, of course, amplified by the following amplification stages. So if you have two amplifiers and one adds less noise than the other, then you should place the...

About this "stealing" of votes. The problem isn't third party candidates that don't play the system. The problem is the system, itself. The system uses ballots specifically designed to punish third party candidates. There are a myriad of simple ways to design a ballot that mitigates the third...

Which energy is defined as negative frequency and which is defined as positive depends on the timing (phase) of the FFT function itself, and is not some independent attribute of a signal. When thinking theoretically, you're in the habit of defining some t=0, which will define what is negative...