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User: polysylabic+psudonym

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  1. Re:Wow, this is pretty stupid. on Driving Away Teens With High Frequency Noise · · Score: 1
    Also, the sensitivity seems to go away after being exposed to the sounds of gunfire

    That's because gunshots are up around 160dB - loud enough to damage hearing instantly.
  2. Re:TVs on Driving Away Teens With High Frequency Noise · · Score: 1

    It's not bad transformers, it's normal transformers.
    You just put a glob of epoxy on the transformer - it messes up the frequency of the vibration, or dampens the vibration.

    Monitors and TVs that suddenly start making the noise generally do so because the glob of epoxy has broken off.

  3. Re:This is not to discriminate against teens... on Driving Away Teens With High Frequency Noise · · Score: 1
    Also, I can not see how this breaks any laws.

    Try "noise pollution"
  4. Re:I doubt this works on Driving Away Teens With High Frequency Noise · · Score: 1

    Your quote is about infrasound - low frequency, sound you can feel; this is about ultrasound - high frequency which healthy ears can hear, older ears and those damaged by loud noices can't.

  5. Re:not a catalyst on Breakthrough in Biodiesel Production · · Score: 1

    Trust them, it's a catalyst.
    The catalyst isn't transformed, it's just really energy-expensive to retrieve it in useable form from the resulting fuel. For example, the methanol catalyst is not transformed, but to retrieve it from the biodiesel one must distill it out.

  6. Re:foil vibrates too on Snooping Through Walls with Microwaves · · Score: 2, Funny

    You're right. The foil will have to be glued to the wall sheeting, egg cartons to the foil, another layer of foil over the egg cartons.

    Let 'em try then!

  7. Re:Tinfoil hats out, team! on Snooping Through Walls with Microwaves · · Score: 1

    Sister and parents? What's wrong with a glass pressed against the wall?

  8. Re:It was news... 45 years ago. on Snooping Through Walls with Microwaves · · Score: 1

    That was lasers. Microwaves pass straight through glass.

  9. Makes little difference on Snooping Through Walls with Microwaves · · Score: 4, Interesting

    How many criminals protect against laser audio surveillance, where a laser beam is bounced off a window or other rigid surface, and the sound from the room vibrates the surface, wobbling the beam, the wobble being translated into audio by the snooper.

    The laser can be defeated by double glazing (I think), devices to vibrate windows and laser detectors (to tell you if you're being listened to).

    A microwave device can be defeated by the good old tinfoil hat - by which I mean wallpapering in foil or otherwise turning the room into a faraday cage.

  10. Re:Too good to be true on The Car That Makes Its Own Fuel · · Score: 1

    See my other post. They've got the physics backwards. If you heat a metal oxide in hydrogen you get water (steam) and the metal deoxidised.

    They're suggesting that if you heat metal in a steam atmosphere you get oxidised metal and hyrogen - but it can't work both ways, it works the other way, therefore it can't work their way.

  11. Re:Example of moving the pollution elsewhere on The Car That Makes Its Own Fuel · · Score: 2, Informative

    Take a similar technology - but this one real, reported in reputable publications:
    You take nanometre sized particles of iron, aluminium or boron. They are injected into a standard internal combustion engine, a spark plug ignites the particles, the heat causes the air/fuel mixture to expand, operating the engine, the exhaust stroke pushes the spent fuel out where it is captured by an electromagnet (the particles are so small that they act like fine dust, floating in the airflow - the researchers tried years ago with iron filing sized particles and they just gummed up the motor).

    Now the comparison:
    The spent fuel in this real system is reprocessed by heating it in a hydrogen atmosphere, where the oxygen is captured by the hydrogen, leaving pristine metal nanoparticles again.

    This system claims to be the opposite, heat up the metal in water atmosphere and hope that it dissociates and the oxygen is trapped by the metal.

    This can not work both ways. It is impossible. Just to make it clear, we'll start with their imaginary physics then go to real physics:

    1. You heat the metal in a steam atmosphere
    2. The steam spontaneously breaks up into oxygen and hydrogen and oxidises the metal
    3. Real physics kicks is here, the hydrogen combines with the superheated oxide giving steam and pure metal
    4. (go back to fantasy physics) we've got perpetual motion!

  12. Re:EL Wire! on Geeky Gadgets for Halloween Parties? · · Score: 1

    Gin and Tonic wasn't designed to improve the taste of the gin, it was to make the tonic water palatable so people would take their quinnine.

  13. Re:May be too scary for people with a heart condit on Geeky Gadgets for Halloween Parties? · · Score: 0

    What idiot marked parent "off topic"? Didn't get the joke eh?

  14. Re:freedom? on Senator Wants to Keep U.N. Away From the Internet · · Score: 1
    Hey, we gave them powered flight. That's enough.
    Er... no, you didn't (assuming you're not a New Zealander). And saying you did often enough will not make it true.
  15. Re:enough? on A Clock That Runs for 10,000 Years · · Score: 1

    The clock is intended to last. Not to be perfectly accurate. It improves its accuracy sufficiently to probably keep on the right day for 10 kiloyears by reseting itself every midday using a mirror and warmth from the overhead sun.

  16. Re:What Time Is It Now? on A Clock That Runs for 10,000 Years · · Score: 1

    ...in the particular time zone that the clock was set to.

  17. Re:Tills? on Major Retailer Chooses Linux for its Tills · · Score: 1

    Um, not a Brit. Very much not.

  18. Re:Tills? on Major Retailer Chooses Linux for its Tills · · Score: 1

    That would be a cash register
    US of Americans seriously don't use that word? Wow.

  19. Re:Article misses the point on Computer Jargon Too Difficult for Office Workers · · Score: 1

    I'm guessing the author asked the office techie for some definitions, and said techie threw that one in to give us a bit of laugh.

  20. Re:Its not just computers. on Computer Jargon Too Difficult for Office Workers · · Score: 1
    Get in, sit down, turn the key. Transmission in drive. Gas pedal, brake pedal, steering wheel. That's about it. If the car says "low fuel", add fuel. If it says "need maintenance" (or, on older/cheaper cars, every x000 miles), take it to the shop. They do "stuff," I pay money.
    Now for the person who hasn't gone through thousands of hours of watching other people do it, followed by a written exam, followed by many hours of practical training, followed by a practical exam (remember? You didn't spring forth from your mother's womb knowing how to drive):
    Get in, sit down - damn can't reach the pedals "tech support! I can't reach the pedals... ...okay, so I lift that lever and pull the seat forward... okay."
    Turn the key - damn car just jumped forward "tech support! My car's not working - I turned the key and it jumped forward instead of starting... oh? really? Okay um, which one's the clutch?"
    Depress clutch, turn key... Okay, that wasn't fair, I'll do that bit again with an automatic...
    Turn the key - nothing happened "tech support! My car isn't working!" - several minutes of investigating "oh, you mean it has to be in P or N to start?" A quick explanation of what the different gear selector settings are for is provided by tech support to save a call in a few seconds.
    Selector to R because we want to go backwards, onto the road and selects D for forwards - that bit was pretty easy.
    Now we're on the road, no need for technical terms here! Don't need to know what a red hexagon means, nor a white triangle outlined in red, point down, nor a sign with numbers on it, okay arrows are pretty intuitive, but what about a circle with a horizontal line through it?

    Don't confuse the huge amount of training you've received in operating a car with intuitiveness of the interface or machine. Sure you don't need to know how a motor works to operate a car, but there is no shortage of specific technical knowledge or technical terms that you do need to know.
  21. Re:I wish DC get money and have more control on Marvel Gets Cash to do 10 Films · · Score: 1

    (getting into this discussion late - saw it while M2ing)
    There is a happy medium. Sure, Socialism means the workers support the non-workers, but Capitalism to the same extreme means that the workers support the owners.

    The difference is that in Socialism the workers get the same advantage as the non-workers: if they loose or leave their job, they get the government provided home etc. In Capitalism if the worker loses their job do they get the benefits of the owner they spent their life-so-far supporting? Ha!

    In reality, in socialism as it is practiced in the UK and as it was until recently practiced in Australia, there are sufficient disencentives to keep the vast majority from abusing the system.

  22. Re:Bacon grease. on VW Goes USB · · Score: 1
    Oooo, yuck! So, instead of smelling like...

    No, I wasn't making a point about the odour, I'm not sure that it would smell bad at all - does pork crackling stink? Sulfur's undesirable from air pollution and engine deposits points of view.
  23. Re:The REAL Bad News is... on VW Goes USB · · Score: 1

    Of the things you list, only plastics have any great need for petroleum products. Why do we burn oil when it's so damn useful for other things?
    We can run IC engines just as well on ethanol or biodiesel. If you want to run it on a petroleum product, use one that's not suitable for plastics, say natural gas or LPG.

  24. Re:The REAL Bad News is... on VW Goes USB · · Score: 1

    Still get sulfer, and how much fat does a cat carry?

    In fact, humans aside, what animal would be best for fat production? What would have the best fat per square meter of floor space ratio? What would have the best food to fat conversion efficiency?

  25. Re:Bacon grease. on VW Goes USB · · Score: 1

    Funny you say that. A thought I had was to get myself a pig farm, cut up the pigs, remove the fat for conversion to biodiesel, sell the meat as low fat.

    Only trouble is that by using animal fats you end up with noteworthy quantities of sulfur in the fuel. Better to use vegetable oils.