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Comment Re:typical delusion (Score 1) 99

IMHO this is comparing pears and apples

you allow that generating station to use wind, waves, gravitational potential energy, light, nuclear decay, ... to power the vehicle, rather than petrol.

This is completely true, hands down! And a Good Thing.

Further, you also simply make the whole system more efficient - petrol motors are horribly inefficient, typically around 30-35%.

Here it goes wrong. How can you compare the "efficiency" of solar and combustion engines? Besides: afaik the efficiency, aka "how much energy potential is there in the source and how much can we extract" of nuclear is far worse than that of a combustion engine, but that doesn't matter because the energy density in the nuclear fuel is infinitely higher. The "efficiency" of solar panels is also much lower than the 50% you quote. So the intrinsic efficiency is largely irrelevant. To make a fair efficiency based comparison, the power plant should also run on petrol and in that case I doubt the increased efficiency of a plant versus a car compensates for the losses in the electrical conversion.

Comment Re:Don't really understand (Score 1) 247

I don't really understand why people need to use anything more than swipe. My phone always travels with me, so others won't have access to it.

Because swiping occurs too frequently by itself, often followed by inadvertent messaging or dialing. I use a pattern, only because of this. It is not a complex pattern, but complex enough to avoid happening "be accident". I would never use a pattern for actual security, if only because it can be easily observed and leaves a trace on the screen.

Comment Re:I think this existed in the 80's (Score 1) 69

What you are referring to is demodulation of AM signals in much the same way a crystal receiver operates. That requires a fairly strong signal and a nonlinear device, i.c. a diode formed by two different metals in your brace, a germanium diode (crystal set) or iron/rust junctions in barb wire, which also exhibits this phenomenon.

The article is about a modulation of a pre-existing radio wave, similar to a spy device the Russians used during the Cold war. A difference is that the Russians transmitted a dedicated carrier to be modulated, while this technique piggybacks on existing radio waves.

Comment Re:Only Tech? (Score 2) 156

Except that, by any objective measure, the news is NOT negative. The world is most peaceful.

No. You are confusing what is happening, the facts with the news. At the moment, the news may very well be the worst of all times, even if the facts aren't.

If you think that the reality of what is happening in the world is mostly negative, you should reconsider your news sources, and get a more balanced perspective.

The OP's personal source of news is irrelevant in this discussion. Bad news sells better than good news, even for the NYT and the WSJ. As TFA puts it "...they have an incentive to pursue alarmist stories that generate clicks."

Comment Re:Maxwell is admired (Score 2) 129

Very true. The vector thing was the brain child of Oliver Heaviside. As much as I appreciate Maxwell, it is sad to see that Heaviside, one of the few people that understood Maxwell`s work, and the one who gave the equations their current, familiar form -while on the fly inventing vector calculus- is virtually unknown, even on /.

Comment Re:Yes, it's *giants* all the way down. (Score 1) 129

there isn't such a thing as a "revolution" and "geniuses" in science.

There may be no geniuses, but there certainly are revolutions in scientific advancement, typically called "paradigm shifts"

There was a time people believed combustion was "phlogiston" exiting the material; blood was generated and consumed in the body (not circulated); the Sun revolved around the Earth; mice could be "created" by leaving some food and rags alone in a bucket in a barn for a few days, while fly maggots were "generated" in meat. Around Maxwell`s days it was believed aether was needed for the propagation of electromagnetic waves and the age of the Earth was under estimated because the radio active processes preventing a more rapid cooling down were unknown.

All of these ideas were eventually discarded through a process that was not incremental, but revolutionary.

Yes, revolution exists in science!

Comment Re:Stupid (Score 2) 146

Anti-aliasing is not "providing data that is not actually there", anti-aliasing is removing data that is actually not there, more specifically high-frequency aliases of the low-frequency information. Hence the name anti-aliasing.
In practice, this means that the best any algorithm can do to improve a (general) blocky image, is smooth the edges of the blocks. What this algorithm apparently does, as far as I understand, is just correlate the blocky image to a library of known facial features. This has nothing to do with FFT or anti-aliasing whatsoever.

Apart from that, unless your name is "M", I am afraid

I know this because I am friends with both of the "B"s in BBM.

doesn't really mean anything.

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