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User: jeffb+(2.718)

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  1. Hmm... Charlottesville wouldn't be a bad place... on A Domain Registrar Is Starting a Fiber ISP To Compete With Comcast · · Score: 1

    ...except for all those Wahoos.

    Seriously, it's a cool town, in a beautiful setting. We've been happy as clams with our Ting (also from Tucows) mobile service, and we've wanted for a long time to move back to the Virginia hills. Hmm...

  2. How do they compute the perspective? on Jaguar and Land Rover Just Created Transparent Pillars For Cars · · Score: 2

    When I'm driving, I'm usually make small movements with my head. A static, non-head-tracking display may well be more distracting, and probably more dangerous, than the original blind spot.

  3. Re:Stay away from you? Why? on Time To Remove 'Philosophical' Exemption From Vaccine Requirements? · · Score: 2

    You don't understand what vaccination does. It reduces your chance of contracting a disease, but not (necessarily) to zero. Please Google "herd immunity".

  4. Re:Freedom of choice on Time To Remove 'Philosophical' Exemption From Vaccine Requirements? · · Score: 1

    While I echo the necessity of vaccines in the modern world as a necessary and effective tool for limiting infections and thereby human suffering, I am not a fan of abandoning basic freedoms just so we can all feel more secure. The law is very clear, the government shall not pass any law that infringes on the free exercise of religion. Thus, if vaccines are created that infringe on my freedom of religious expression, they have to pass a bar that is set pretty high before they can be enforced or have any hope of surviving a basic court challenge.

    Tell it to the Mormons of the late 1800s, or some of their current sects.

    Tell it to the Rastafarians.

  5. Re:Religious is better than philosophical? on Time To Remove 'Philosophical' Exemption From Vaccine Requirements? · · Score: 1

    So if you don't want it because you have an invisible friend, then that's ok. If you don't want it because you have a supposedly reasoned and cogent objection, that's not ok?

    Of course. My invisible friend said so.

  6. Hyperacuity. It's real. on LG To Show Off New 55-Inch 8K Display at CES · · Score: 1

    Visual hyperacuity is one factor that often gets ignored in "how much resolution do you need" calculations. You'll see those "bumps" in nearly-flat diagonal lines much more readily than the simple calculations would suggest. Anti-aliasing everything tends to take care of that problem, but it's still pretty unusual to anti-alias everything. For example, does your system allow fractional-pixel cursor movements?

  7. Re:Missing theory on High Temperature Superconductivity Record Smashed By Sulfur Hydride · · Score: 1

    If observations contradict the theory, then we were ALWAYS in the situation where we did not understand anything. We just didn't realize that we were in that situation -- we "understood" incorrectly.

    The next step to enlightenment is realizing that we always understand incorrectly. We aspire to understand well enough -- well enough to make useful predictions, well enough to provide a foundation for further understanding.

  8. sulfur hydride vs. hydrogen sulfide... on High Temperature Superconductivity Record Smashed By Sulfur Hydride · · Score: 4, Interesting

    I was trying to figure out why they're referring to "sulfur hydride" instead of "hydrogen sulfide". After I got off our broken public wifi and got the paper to load, I see that sulfur turns metallic above 95 GPa, and apparently hydrogen sulfide at high pressures starts to become metallic as well. In that regime, it probably makes more sense to think of it as a metal hydride, if not an intermetallic compound.

  9. Re:Here is a link for 110C superconductivity on High Temperature Superconductivity Record Smashed By Sulfur Hydride · · Score: 4, Informative

    Ah, yes, superconductors.org, otherwise known as "The Superconducting Enquirer" or "Weekly World Superconductors".

    The site has a lot of information about superconductors; some of it is probably quite good. But it's been claiming above-room-temperature superconductivity for a couple of years now. The generally-accepted record for high-temperature superconductivity is around, what, 133 Kelvin? Superconductors.org has been publishing reports of higher temperatures since 2006 or 2007, if not before. While the rest of the world waits for confirmed and reproducible reports, superconductors.org seems to report every errant needle-twitch from every lab that ever tried to measure conductivity.

    I have no doubt that new materials and theories will continue to yield higher transition temperatures. I have no doubt that, whenever that happens, superconductors.org will report it. It's just that you'll have to wade through an awful lot of bogus reports there first.

  10. Re:Its all downhill from here kid... on Ask Slashdot: Dealing With Electronics-Induced Inattentiveness? · · Score: 2

    There's some secular (long-term) loss of capacity, to be sure, but I think it's dwarfed by the effects of attention depletion.

    My memories of older relatives include some who would zone out in front of the TV, but many others who would spend their days reading books, doing crosswords or jigsaw puzzles, or doing crafts (woodworking, knitting/sewing, etc.). You can't always do much about dementia, but growing old generally does not mean the end of attentiveness.

    And remember, if you do it right, you get better at knowing where to direct your attention as you get older. Wisdom can more than make up for small losses in intelligence or focus.

  11. Re:"You are not ready." on New Effort To Grant Legal Rights To Chimpanzees Fails · · Score: 1

    That's... a pretty amazing piece of projection, there.

    In case you're not fluent in English, "we" implies the inclusion of the speaker. I deliberately chose that word, rather than "you", to explicitly include myself in the group not yet mature enough. I may be wrong about the maturity of the general population, but I sure don't see much evidence to the contrary.

  12. Re:"You are not ready." on New Effort To Grant Legal Rights To Chimpanzees Fails · · Score: 1

    People are resistant to the idea because some of the animals we eat show signs of consciousness and suffering.

    So do pets, fetuses, terrorists, and infidels. Before long, so will robots.

    We seem to have few qualms about compartmentalizing our empathy based on categories like these. We do, of course, have big problems agreeing on the appropriate compartmentalization.

  13. "You are not ready." on New Effort To Grant Legal Rights To Chimpanzees Fails · · Score: 1, Insightful

    We're a long, long way from the kind of philosophical maturity that would let us rationalize our laws with respect to sentience, consciousness, suffering, and freedom. In fact, it's apparently pretty early for us even to have a mature conversation about it.

    I hope to see substantial progress in my lifetime, but I'm not really expecting it.

  14. A different take on why they're well-suited: on Workers On Autism Spectrum Finding Careers In Software Testing · · Score: 4, Interesting

    Folks on the autism spectrum may well be better at testing than folks who aren't.

    But they may also find the repetitive or tedious parts of testing less painful than folks who aren't.

    I know software testing is a big field, encompassing a wide range of activities, and that every job has its monotonous and unrewarding parts. But, from what I've seen -- working with SW development, working with testers, working with kids (and maybe some adults) on the spectrum -- the things that "most of us" find monotonous and tedious are frequently rewarding and reassuring for them.

    To the extent that this is true, it's a terrific win/win/win scenario. Companies get people particularly well-suited for the job. People well-suited for the job get work that they enjoy. People not well-suited for the job don't have to stick with drudgery because "nobody likes to do it but somebody has to".

  15. In this house we obey the laws of thermodynamics! on Scientists Develop "Paint" To Help Cool the Planet · · Score: 2

    Passively cooling an object below ambient temperature seems... counterintuitive. I think I understand what's going on here, but I'd like to see some more thorough discussion. Particularly, I'd like to know how you can find any passband in which an object at ambient temperature radiates more heat than it takes in from direct solar exposure, except the bands blocked by the atmosphere.

  16. It was Perkin-Elmer's mistake. on Corning Reveals Gorilla Glass 4, Promises No More Broken IPhones · · Score: 1

    That was NASA's mistake. The mirror was made to spec, but NASA didn't work out how it would deform in orbit/a microgravity environment.

    That's an interesting claim, but entirely fictional, as far as I can tell. I followed the story closely at the time, and in the end, every report I saw put the blame on a defective Perkin-Elmer null corrector assembly (reserving some blame for NASA's inadequate oversight of their development and testing processes).

    Why are you trying to rewrite history?

  17. Re:learning piano - visual, aural, kinesthetic on People Trained To Experience an Overlap In Senses Also Receive IQ Boost · · Score: 1

    ...but I can't help suspecting the forced rewiring of my brain hasn't helped my general learning capacity.

    I expected you to say that it HAS helped your general learning capacity, but you're implying that it hasn't. Could you please clarify or reinforce your point?

  18. Re:Listening through noise or interference on US Intelligence Unit Launches $50k Speech Recognition Competition · · Score: 1

    Well if you convolve a signal with a 1Hz sinc wave the signal is "replicated and redundantly presented" but provably most of the information in the original signal is now lost. Interference correlated with the original sound is a convolution. It destroys information, it has to. It makes the problem harder, that's why our brains can't handle it, although our brains have context-based processing which allows us to recover a lot more than a system without that.

    Perhaps. As you can surely tell, this is well outside my expertise.

    Also, our brains are not hard-wired.

    Forgive my imprecise wording. Brain wiring is malleable, but there's a lot of built-in structure, especially around perception and language processing.

  19. Re:Listening through noise or interference on US Intelligence Unit Launches $50k Speech Recognition Competition · · Score: 1

    I'm not familiar with the IBM demo you mention, but the key there is the controlled vocabulary. It was probably also trained on the speaker's voice. Those are huge constraints.

    I'm remembering that it was controlled-vocabulary, but speaker-independent. I think it was trained on spoken digits -- a very small vocabulary. It's been a long time, and I may be misremembering even the most basic details. Still, it was impressive to hear it picking out numbers where all I could hear was noise.

  20. Listening through noise or interference on US Intelligence Unit Launches $50k Speech Recognition Competition · · Score: 1

    I remember a demo out of IBM, I believe, for recognizing controlled vocabulary in high-noise environments. It handily OUT-performed humans -- listening to the test audio, you couldn't really be sure there was a human voice at all, but the software detected and interpreted the speech with high accuracy.

    This demo would have been circa 2000. I can't help imagining that there's been more progress since then.

    The proposed task, where the interference is correlated with the original sound, seems like fertile ground for superhuman performance again. The original signal gets replicated and redundantly presented. Our brains are hard-wired to be confused by that, but it seems like a well-designed speech-recognition system could take advantage of it.

  21. (pinky to mouth) on US Intelligence Unit Launches $50k Speech Recognition Competition · · Score: 1

    Fifty THOUSAND dollars!

  22. Re:Wholesale vs. retail? on Rooftop Solar Could Reach Price Parity In the US By 2016 · · Score: 1

    Okay, the two older sibling posts make sense to me. Thanks for helping me clear my mental fog.

  23. Wholesale vs. retail? on Rooftop Solar Could Reach Price Parity In the US By 2016 · · Score: 0

    Instead of comparing the cost of generation of solar power to the retail cost of power from other sources, shouldn't we compare it to the cost of generation from those other sources?

  24. Re:Because annealing doesn't affect matnetism on Magnetic Field In Meteorite Provides Clues About Formation of Solar System · · Score: 2

    Um, but I think OP was trying to build a case to justify sending people to Mars or something. Because we *need* to explore or some such romantic nonsense.

    It would appear that this says a lot more about your thought processes than about anything OP actually wrote.

  25. Re:Because annealing doesn't affect matnetism on Magnetic Field In Meteorite Provides Clues About Formation of Solar System · · Score: 4, Informative

    Think about how long it takes a meteor to descend through the atmosphere and decelerate to terminal velocity. It's a few seconds.

    Now, think about how quickly metal or rock conducts heat, and how quickly heat dissipates into moving air or solid ground.

    Nearly all the object's kinetic energy goes into compression heating of the atmosphere. Of what's left, nearly all goes into ablating the object's surface. When the object hits, its interior is still cold.