Slashdot Mirror


User: jeffb+(2.718)

jeffb+(2.718)'s activity in the archive.

Stories
0
Comments
1,710
First seen
Last seen
Profile
(view on slashdot.org)

Comments · 1,710

  1. What's a "partial burn"? on Fire Risk From Panasonic Batteries In Sony Vaio Laptops · · Score: 2

    ...and how does it differ from a "total burn"?

  2. Re:Parallel on How Cochlear Implants Are Being Blamed For Killing Deaf Culture · · Score: 1

    Without attempting to take sides on the issue, I must point out one thing your arguments overlook: many people lose their hearing later in childhood or in adulthood. They've already missed their chance at being "deaf culture natives". Cochlear implants help them function in the culture that's already assimilated them, and I don't believe even deaf-culture activists object to implants for such people.

  3. Well, let's keep looking... on Rover Curiosity Discovers Australia-Shaped Rock On Mars · · Score: 1

    Let's see if we can spot the maps of Kzin, Down, Jinx...

  4. Re:Alright, alright,alright on For the First Time, Organ Regenerated Inside a Living Animal · · Score: 1

    Well, it's pretty clearly both. Of course, being eaten by wolves is also a natural occurrence, but nobody seems to object to those who choose wolf-avoidance as a lifestyle.

  5. Can't argue with function, though. on For the First Time, Organ Regenerated Inside a Living Animal · · Score: 3, Interesting

    Don't care. If the organ is restored to youthful function, as at least the linked summary indicates, then this is a big deal.

    Specifically, this appears to be very different from (say) cardiac hypertrophy, where the heart grows larger but works less efficiently. In this work, the "rejuvenated" thymus not only gets bigger, it produces more T cells -- in other words, it works more like a youthful organ.

  6. Re:Phones yeah on Nanodot-Based Smartphone Battery Recharges In 30 Seconds · · Score: 1

    So, use a big, braided, heavily insulated cable. With a connector about the size and weight of a gas-pump nozzle.

    Now, neighborhoods won't want huge high-tension lines running to every corner "gas" station. But, no worries, we have these cool new high-rate high-capacity batteries! You just load a semi truck with them, and put on REALLY big (a few square feet) charge/discharge connectors. The truck charges up at the generation facility, drives to the local station, and discharges into the station's below-ground storage tank, er, battery.

    Homes that don't have high-power electric available, or that don't want to pay for the service to be installed, can instead put a stationary tank, er, battery out behind the house. The propane, er, mobile-electric company would come around once or twice a month to refill, er, recharge it.

    Aphorism of the future: "Never underestimate the current capacity of a station wagon full of batteries."

  7. Re:Why it is not white-hot? on Skydiver's Helmet Cam Captures a Falling Meteor · · Score: 3, Informative

    It's not exposed to atmospheric heat (from compression, not friction) for long enough. It's heated for seconds, and the heat is so intense that it blasts off outer layers instead of dispersing into the body -- which, remember, is at cryogenic temperatures when it hits the atmosphere.

    The light from meteors is nearly all from compressed atmosphere and vaporized rock/metal. All the material that's hot enough to glow gets knocked off.

  8. James Thurber on Study: Exposure To Morning Sunlight Helps Managing Weight · · Score: 2

    Early to rise and early to bed makes a man healthy, wealthy, and dead.

  9. Oh, BS. on Contact Lenses With Infrared Vision? · · Score: 2

    Yet another press release that glosses over the difference between "sensor" and "imaging system".

    Give me the best, most sensitive, highest-resolution, lowest-power, and cheapest thermal IR sensor array you can imagine, and it's just a glorified ambient thermometer unless you can focus onto it. I'm sure there are cyberpunks/steampunks/whatever who would be happy to rock germanium-lensed spectacles, and I'm sure there are body-modders who would love to have pit organs in their foreheads, but you're NOT getting a self-contained thermal-imaging contact lens.

    Oh, okay, I can imagine something that would work like an insect's compound eye, with an array of highly directional individual sensors -- but that's not what TFA is talking about, and it's not something we're likely to see in the next couple of decades.

  10. Re:Programming is hard because computers are slow on Charter Challenges Comcast/Time Warner Merger · · Score: 2

    Then there's the whole "posting in the correct discussion thread" optimization...

  11. "They don't compete"? on Charter Challenges Comcast/Time Warner Merger · · Score: 1

    I wasn't aware that the entities that sell programming to them were also divided into non-overlapping geographic areas.

  12. It's clouds' illusions I recall... on Cisco Plans $1B Investment In Cloud · · Score: 2

    ...but I guess a Judy Collins reference outs me as older than even Cisco's management.

  13. One better? Well, sort of. on Fluke Donates Multimeters To SparkFun As Goodwill Gesture · · Score: 1, Interesting

    That original $30,000 shipment was apparently 2,000 multimeters. I'm guessing that $30,000 "worth" of Fluke meters, while a nice gift, will constitute a lot fewer units, meaning fewer makers will end up getting their hands on a meter.

  14. Re:It's even more amazing... on MtGox Finds 200,000 Bitcoins In Old Wallet · · Score: 2

    it's a shady way of transferring money anonymously.

    One man's "shady" is another man's "prudently concealed".

  15. Re:A faraday cage has to be grounded to earth. on Earth Barely Dodged Solar Blast In 2012 · · Score: 3, Informative

    You seem to think that the damage comes from stuffing too many electrons into a box. That's not how it works at all.

    A Faraday cage shields its contents, period. A magical tether to Mother Earth might make you feel better, but it makes no difference to Maxwell's equations.

    To put it in simpler and more specific terms, cars (and airplanes) frequently survive direct lightning strikes with no damage to their electrical systems. The energy from even a Carrington-level event, over the area of a car, is miniscule compared to the energy of a lightning strike. I'm not even sure it would exceed the energy of the static you build up scooting across the seat and then touching the door handle.

  16. David Brin predicted this in _Earth_... on First Automatic Identification of Flying Insects Allows Hi-Tech Bug Zapping · · Score: 1

    ...although I think he cast it as a Star Wars spinoff. I'm liking this idea, especially if it's subject to Moore's Law-style cost scaling over time.

  17. Not that much more dystopian... on New Facial Recognition Software May Detect Looming Road Rage · · Score: -1

    ...than it is now.

    No, you do not have an inalienable right to act out your aggressions on a publicly-funded highway.

  18. Meanwhile, US stock markets... on Russian State TV Anchor: Russia Could Turn US To "Radioactive Ash" · · Score: 1

    ...are singing and dancing. If the Invisible Hand isn't sweating, why should I?

  19. Re:Electrical devices? on EU Votes For Universal Phone Charger · · Score: 1

    With old chargers no longer becoming junk it's clear the market it cut down into fraction of what it used to be too, so perhaps we'll see only one or two charger manufactuers.

    Markets dependent on planned obsolescence, and business models that rely on turning working and non-inferior equipment into e-waste, can go straight to hell.

  20. "LONG extinct"? Hah. on 43,000-Year-Old Woolly Mammoth Remains Offer Strong Chance of Cloning · · Score: 4, Insightful

    A few thousand years isn't "long".

    Compared to the other changes humans wreak over decades, bringing back mammoths would barely cause a ripple.

    "Contain these creatures forever and ever"? We already extinguished them once, without even the help of gunpowder. If you're looking for things to worry about, you can do much better than this.

  21. Mod parent up! on Conservation Communities Takes Root Across US · · Score: 1

    I've been scanning the comments looking for anybody asking about water usage. If they're really trying to tout their "conservation community" in freaking ARIZONA, they ought to be putting the water issue front and center.

  22. Don't confuse "near" and "thermal" IR. on Power Cables' UV Flashes Apparently Frighten Animals · · Score: 3, Informative

    Thermal IR (the wavelengths emitted by things around body temperature) is really low-energy. It's hard to focus, and hard to detect, especially with a detector that's already in the same temperature range. Pit vipers, vampire bats and some other animals do it, but the mechanism's fundamentally different from normal vision, and doesn't provide much in the way of an actual focused image. (The pit viper's pit is sort of like a pinhole camera with a really big pinhole.)

    Near-IR, the kind of thing that cheap digital security cameras can see, is higher-energy. It can be emitted thermally, but you've got to get pretty hot (hundreds of degrees) to produce significant amounts. Go a little hotter, and you can produce visible light ("red-hot", "white-hot", etc.).

    Even near-IR is hard to pick up with a chemical process, though, the way retinal cells pick up visible light. I'm not aware of any animals that can see significantly further than us into the near-IR -- okay, a bit of Googling turned up one fish that can do it.

  23. If you tweak the params, does it produce turtles? on First Mathematical Model of 13th Century 'Big Bang' Cosmology · · Score: 3, Funny

    ...all the way down?

    I'm sure there are multiple people working on Grand Unified Theories suitable for generating all known cosmogonies. Feel free to post yours!

  24. Yeah, when I think "Bond-style lab"... on LABONFOIL: A Portable Bond-Style Lab · · Score: 1

    ...I think of counters ticking down to self-destruct, consoles erupting in pyrotechnics, and impossibly hot women trying desperately to escape. Pretty sure I don't want all of those in a portable form-factor.

  25. Re:Ting on WSJ: Americans' Phone Bills Are Going Up · · Score: 1

    We got a Nexus 5, and even with mobile data turned off , it still uses something like 10KB/day. That makes me really uneasy.

    We contacted Ting support, and they assured us that there's a buffer in the billing so we wouldn't get charged for that data. Yes, but that's not the point. Why are we using mobile data even when it's explicitly turned off at the phone? What are we sending or receiving? Tracking information?

    We're still a lot happier with Ting than we were with Verizon, and the Nexus rocks, but I get really nervous when my devices disobey direct orders and nobody seems to care why.