Just noticed that you didn't specify what type of 15 kHz wave we're talking about, I assumed sine. Obviously a 44.1 kHz rate can't reproduce any arbitrary wave shape at 15 kHz, because by Fourier theory that arbitrary wave shape could contain frequency components well above Nyquist - even a 4 times greater sampling rate probably wouldn't be enough to reproduce a nice-looking square wave at 15 kHz, as you'd only be getting the fundamental and the first square wave Fourier term (3rd harmonic.)

The maximum achievable dynamic range of an ADC is determined by the bit depth of the converter. In practice, this dynamic range is limited by the steepness of the roll-off of the anti-aliasing filter - you can have a 16 bit converter, which implies 16*6 = 96 dB of dynamic range, but if your low pass filter only rolls off 12 dB before you hit the Nyquist frequency, your dynamic range will be limited to 12 dB. The OP is working under the assumption that the "final" sample rate, as indicated by the information on the .WAV file, for example, is the sample rate used throughout the entire ADC system. This is not how modern audio ADCs work. The input signal is oversampled, an analog lowpass filter is applied (based on the Nyquist frequency being k*F_s/2, where k is the oversampling amount.) The signal is then converted to digital, a _digital_ filter is then applied, and the signal is then decimated back down to the "final" sampling rate. In fact the ADC block in the system for most audio converters is of the sigma-delta type, which are only "1 bit" converters and have their own interesting properties, but the same basic principle applies.

I don't know why you say that three data points isn't nearly enough, as the whole point of Nyquist's theorem is that it is, if the signal is perfectly bandlimited. If you mean that it's probably not enough to reproduce a 15 kHz wave accurately given the imperfections of most consumer 44.1 kHz ADC or DAC systems, I think I'd agree with that.

Almost all modern audio ADCs use oversampling to relax the requirements on the input analog anti-aliasing filter, regardless of what the final sample rate is going to be. The digital anti-aliasing filter still has to roll off before the Nyquist frequency of the final sample rate, but since it's much easier to construct good filters with sharp stop bands in the digital realm, I'd think what sonic advantages you get from brickwalling between 20kHz and 24khz vs. 44 to 48 khz would be debatable.

There is an issue I haven't seen mentioned in the article or in the discussion, but that I hope will become more common knowledge: many of these anti-depressant and anti-psychotic medications can cause devastating withdrawal symptoms upon attempting to reduce or discontinue them. I've never spoken with any mental health professional who has acknowledged openly that such effects exist, but all the studies are available on the Web, along with patient support websites like www.paxilprogress.com. It seems some drug companies have started to put small blurbs about "discontinuation syndromes" in the list of drug side-effects in an attempt to mitigate their liability.

I believe all psychoactive medications are, to a greater or lesser degree depending upon individual physiology, going to have the same issues of drug tolerance, dependence, and withdrawal that many "street drugs" have. When one is modifying the sensitivity of serotonin, dopamine, or norepenephrine receptors with chronic consumption of a medication, causing them to up or down-regulate depending on the drug, when the drug is removed there is going to be a massive over or under sensitivity situation - the same kind of situation that arises in benzodiazepine or opiate withdrawal. How could one expect different?

Decades after the introduction of the typical antipsychotics the mental health industry grudgingly recognized that iatrogenic effects like akathisia, tardive dyskinesia, and neuroleptic malignant syndrome could result from the use of the medications - but perhaps because anti-psychotics were generally only prescribed to the seriously mentally ill who could be expected to be on them for life the withdrawal syndromes did not get a great deal of exposure. Now with atypical antipsychotics prescribed more and more for off-label uses, and SSRIs, many "less severe" cases may find that their medication becomes less effective over time, and then find out to their horror that there is no easy way to cease taking the pill. As I mentioned, the mental health professionals I've encountered have in general flatly denied that any of these dependence issues exist, which brings to mind the quote from The Life of Galileo: "He who does not know the truth is only a fool. He who knows he truth and calls it a lie is a criminal."

But then at 0:52 she essentially admits she was texting.

http://goo.gl/doodle/3hcD3

"...the US Air Force announced the successful test of their advanced X37B space plane, which is widely regarded as a next-generation super weapon that is even more dangerous than atomic bomb."

Strictly speaking, the X-37B doesn't do much of anything in and of itself other than go round and round the Earth, so I'm not sure the above is exactly an apples to apples comparison.

What could possibly go wrong?!

It's replicating the performance of the NES, but it's using an ATMega644 with twice the memory of the 328 and overclocked to nearly 30 MHz.

The ATMega328 only has 2KB of RAM - the 32KB is its Flash storage which holds program data since the microcontroller is Harvard architecture. The NES had 2KB plus 2KB of video RAM, plus RAM for the sprites. Even with the ATMega's higher clock rate I think replicating the performance of the 6502 in a video game system with it would be a challenge.

"Unruly youths" is journalism code in Europe for "gangs of young Muslim men."

I often see Boston get singled out in comparisons of this sort, most likely due to the unfortunate fact that the limits of the actual legally defined "City of Boston" are quite small compared with the metro area, and that the area contains a couple predominantly black neighborhoods that have been in a constant state of gang warfare since time immemorial. It takes a great statistical leap of faith to extrapolate that anomaly into how "safe" or "unsafe" the entire city of Boston is- if one were so inclined one could take the entire Boston Metro area into account and the per capita muder rate would drop through the floor. Don't expect anyone at the Harvard Crimson to acknowledge that detail, but they'll certainly use the statistics as an argument to get more gun control legislation passed -- as if anyone in Roxbury gives a fuck.

A planet of slums is hardly the dream of the environmental movement, Stalinist or otherwise. If anything it's the endgame of neoliberal economics -- a world of billions of poor ruled over by a godlike wealthy elite is its apotheosis.

Yeah, but sewage contains a whole lot more than just human shit, and there's an enormous volume of the stuff. The difference between a nutrient and toxin is often just a matter of degree. But if you're convinced that fertilizer and raw sewage are equivalent in practice, why not route your dwelling's sewage outflow pipe into your garden and tell us how it goes?

For curling!