3189 posts • joined 10 Jun 2009
Re: Methane from Cellulose
Before you advocate returning to this level of energy consumption, just try walking everywhere you want to go for a month. Limit your diet to whatever is in season and can be found within a day's walk of your home. Oh, and no refrigeration allowed! Not even air condtioning. Live without cooled or heated air for a month as well. Oh, and no filtered or distilled water, and no preservatves at all and no..."
That is EXACTLY what the Luddites want. After all, that's how every other animal in the world does it. They want us to be completely self-sufficient or at worst local-sufficient. They will have an answer to every contention you raise. Who needs to travel great distances when everything you need is right at home? After all, transportation, both of people and goods, are taking up a lot of the fuel expenses. Seasonal goods? That's why they encourage farming and crop rotation, so that you have things available in different parts of the year. The right home design can actually help regulate the internal temperature. Think solid stone or mud walls and thich thatch roofs, both of which retard heat transfer, and open windows combined with a central fireplace that encourage airflow via chimney action. We had ways of preserving foods well before the modern refrigerator: root cellars, jerking, salting, etc. As for the water issue, we already knew two ways to clean the water: you can either boil it or switch to drinking ale, which was that many people drank in those days for reasons of health (the water in ale is boiled and it has microbe-killing alcohol in it).
While the data may still be readable for that long, one has to wonder if the encoding will last as long. After all, reafing a binary 65 won't mean much if the ASCII code system got lost along the way.
Not, it's the bottom of the bin, inflated momentarily by the explosively-expanding gas (note that the bin is thing plastic, not more-rigid metal). The balls are being forced out of the can by the nitrogen gas, which is taking the balls' place in the can, so no vacuum is involved.
Re: Now if only a lecturerer directory listed *this* sort of stuff...
1) The dustbin jumped because most dustbins that size aren't flat or rigid at the bottom. They usually have a recess down there to reduce friction when you have to drag it. When the nitro blew, contained even momentarily by the ping pong balls, the pressure probably inflated the recess down there, causing it to push down and strike the floor at velocity, working like a downward-striking piston.
2) A lot of things look remarkably like an explosion. Rapid combustion, for example. Explosion is a pretty vague term usually.
Re: That's learning of today (the future)?
There are some studies that point out that the dreary approach (rote memorization and lengthy practice drills) actually yields better long-term results. I don't know why, but I think it's because that combined with a very high competitive bar (I think they were comparing Japan in this case, which tends to foster mutual competition) tends to make the students focus, and focused learning tends to stick better because there's a motivation behind it..
Re: Could this root a tablet?
He's simply said Microsoft isn't interested in using Secure Boot to kill Linux. It would tick off too many people and be crossing a legal line in Microsoft's case since they don't own the UEFI code. That's why the PC versions require an ON/OFF switch, to show that Microsoft isn't coercing the OEMs. The tablets are another story because that is supposed to be a total-package solution that requires end-to-end protection. Different rules.
Re: still vulnerable to the old attacks if the SecureBoot technology is not turned on by default
Thing is, unlike on tablets, turning it on by default wouldn't be so big a deal...so long as you still have access to the ON/OFF switch!
Re: Not even related.
But at the same time, you never see a private company develop CURES, only TREATMENTS (that have to be repeated). There are some socially desirable things that the money angle draws away. One-and-done solutions are one, devices and appliances that don't wear out after a few years are another.
Re: Not even related.
OK...care to foot the bill for all the staff you'd need to handle that case load?
Re: Why do we have a patent system at all?
Then how do you encourage innovation without some kind of incentive? Money alone won't suffice since without legal protection you're bound to get copycatted.
Re: I respectfully disagree :-)
Then how do you deal with single points of failure inherent with using a judge? IOW, how do you control corruption that can go all the way up the chain unless you use random laymen from the street who are the most difficult part of the court to corrupt (because there is not enough advance knowledge of them to lean influence)?
Re: the party of the first part...
The point is that legal jargon and technical jargon are just that: jargons meant exclusively for those "cliques". They're not meant to be interpreted outside their specific cliques, and it's been that way for centuries. IOW, they WANT to make the stuff as hard to understand as possible: it means job security to them. The problem is that patent law has to necessarily mesh these two together. The results usually aren't that pleasant, and not enough people are happy for any one solution to be embraced.
Re: Another idea
That's assuming the failure occurs at the brick. Mine tend to fail most often in the middle, where some consistent kink eventually breaks a wire open.
Hearing about it here and there, all I can say is that it's an interesting approach to the problem, to say the least. I'll give them points for coming up with something rather novel. And bully them for taking a "whitelist" approach to trust. Starting slow is fine for a whitelist. Just as in real life, trust should be earned the hard way.
But as others have said, this still needs to face the acid test. Two concerns abound. First, there is already VM-aware malware in the wild. They can sniff out virtual machines and either not run or, worse, trigger the second concern. Second, how well-guarded is this MicroVM against a rogue process trying to "redpill" its way out?
Re: "oh, we have secure email"
IOW, at some point you gotta make up your mind. Trouble is that sometimes you can't get a break. You either go down path A and get peeked at all along the way, go down path B and get your pocket picked, go down path C which happens to be the way you came and get mobbed, or stay where you are and end up facing the wolves. Sometimes, failure is the only option, especially in a game like life where you are forced to play.
Re: I got as far as TLS and laughed
IIRC, there IS no better option available. And CRIME affects ALL implementations of TLS and SSL because it works AROUND rather than THROUGH encryption (CRIME is a side-channel attack). The only way to remove the side channel at this time is to remove the compression (which is what they're recommending IIRC), but then that still leaves the problem of optimizing secure-channel transmissions while not leaving side channels open.
That would depend on the hardware being used in the devices. If they are not devices known to the community, then drivers probably don't exist for them, which means you can't build a CM for that hardware since drivers are not included normally in the open-source part of Android.
Remember, Android the BASE OS is open source, but that doesn't mean anything else running ON TOP OF IT has to be as well. Think of it this way: Google Play isn't open source; neither's Angry Birds.
Re: Acronyms FFS
Listen, how do you say each of those ALL-CAP words above? If you say it as a word (EDGE is spoken "edge"), THEN it's an acronym. LASER and RADAR are acronyms because they're spoken as words. If they're spoken letter-by-letter (like LTE--spoken "L-T-E"--and most of the rest), it's not an acronym but rather an initialism (TV is an initialism; so's DVD).
"On the other hand there's nothing technical stopping a company using a standard connector (e.g. MicroUSB) but allowing it to pass non-standard current or even voltage if the connected device can be detected as able to accept it. USB DeviceIDs should do it. Then all you'd need in the charger is a little smart electronics to detect the attached device and feed it accordingly."
The trouble is that most non-Apple phones these days tell the system that they're basic USB MSDs. They do this for simplicity reasons (as most systems carry Mass Storage drivers built into the system so don't need additional driver support), so it would be difficult to query the device to learn it can accept a higher power draw since USB flash drives and hard drives also report themselves as MSDs.
Apple doesn't have that problem because it actually reports itself being a non-standard device (AND an MSD if you turn the option on), so it's easy to identify an Apple product. But then again, that's ALSO why you normally need iTunes or a similar program to access it, ESPECIALLY if MSD mode is turned off on the device.
If Lightning is anything like Thunderbolt, perhaps they needed more power than MicroUSB allows (I believe the spec limits it to 1A @ 5V). That's one reason the Samsung tabs use a wide connector and prefer it over MicroUSB to charge (as it can drain faster than a 1A @ 5V feed can put back).
Re: Double glazing
As I understand it, they're trying even heavier noble gases like xenon, which are even more massive and less heat-conductive (they can't use heavier than xenon because beyond this point even the noble gas radon becomes unstable--read radioactive).
Re: Can someone explain to me
You don't want low pressure, as that reduces heat conductivity. What makes helium so special is that it's so light- even at standard atmosphere. At the same time, being a noble gas, it won't react with anything in there. Since there are moving parts, there will be airflow, which means it will convect heat even if sealed. The big concern right now with helium is keeping it bottled up, since its unique nature also makes it capable of diffusing through many supposedly-solid things (though I hear they're making progress with thin but still-impermeable layers of carbon).
Re: Why not hydrogen?
Because the laptop platter set is 2.5" wide, and you've only got 3.5" of leeway. And you can forget trying the sideways approach; that won't fit, either. As for sub-laptop sizes, they spin at lower speeds and are not designed for consumer-level computer demands (they're meant for embedded use).
Re: Another problem with a vacuum
Actually, you WANT poor thermal conductivity in a window. Poor thermal conductivity means poor heat flow and less chance of heat transfer in or out of the house, which is what you want in a modern climate-controlled house.
It IS actually possible to double-glazed windows were evacuated...FOR that reason. But these days, they also use dense, inert gas fills like xenon which, although not as poor a heat conductor, are cheaper to make and can have their own benefits.
Re: Do 5TB drives matter?
They should also make for more economical archiving drives, pushing tape even further down, especially in the consumer end where tape is impractical these days (it seems these days it's the external hard drive or bust).
Re: And thats why Apple wins
"The vast majorityof customers like simple one stop shopping and user experience to do their job, so until Andriod says no to vendor/carrier fiddles with the OS and make them add-on apps instead. Meaning that the base OS can always be patched directly without having to do some sort of jailbreak to load the latest OS; then i'm afriad as people tire of the experience they eventually even through Iphone hand me downs move to the apple experience."
And that will never happen. Android, unlike Apple, has no glamour. The carriers know that the iPhone series is the most sought-after mobile phone, full stop (sure, Android has more overall penetration, but it's spread out among several manufacturers, none of which approach Apple's single-vendor penetration). They have the allure that makes people buy them way over cost, imperfections and all. In a fantasy world, that would be considered glamour: the ability to alter the perception of the people around you. None of the other carriers have that kind of draw, which means the carriers can always walk away and pick company B instead. Indeed, until the iPhone, North America wasn't really that interested in smartphones, so that should give you another idea as to the singular power of Apple in the phone market. No other company can dictate terms to the carriers because no one wants to be without the iPhone.
Re: This is why you want to separate hardware from software and both from operators
Well, if not the OS maker, and not the device makers (who would have the most knowledge of the device), and not the community (which can't be trusted), then who codes the modules? In the meantime, device makers intentionally use different hardware to differentiate themselves from the competition. As Android relies on an open hardware model (in contrast to Apple which runs a closed integration model), it becomes a tradeoff, and it's one that's rather difficult to solve to everyone's satisfaction. Yes, even to the average consumer since even what "just works" varies from person to person.
Even that's covered.
With the upgrade market in full swing, not all the used phones get sold or traded in. A decent number of them will likely become hand-me-down phones (my first cell phone was a hand-me-down). That should cover most of the growing part of the market (which is also less likely to be able to buy in).
Re: New customers
Last I checked, they're already pretty close. The things that beat down smartphone battery lives are the things the developing world can easily turn off and do without: Bluetooth, WiFi, network tech beyond 2G, and (either partially or completely) data connections. Add in a distinct lack of desire to play videos (music, maybe, but that's manageable) and the battery life in today's smartphones can compete. Add to that the fact that most smartphones have now standardized on MicroUSB (whereas many feature phones maintain proprietary connectors) and you get an increased incentive for novel aftermarket devices like solar-powered chargers and secondary battery units for long excursions (because with standardized plugs, they'll work on most any phone). Plus, if the charger cable gets mangled, it's a lot easier to get another one. Suddenly, smartphones become the smarter investment.
It's bound to happen.
Sooner or later, a market saturates--reaches all the people that are possible to reach. With smartphones available for $100 or less (for cheap-but-still-useable devices), it's soon becoming a case of "you have it already" or "you're not interested at all", especially as feature phones have been steadily disappearing from most markets.
Re: The end of Society as we know it = Cashless Society
Not necessarily. If the card that holds your money has no identity attached to it (like many prepaid cards), all they'll know is that someone used this card at this location but will have no idea as to WHO. As for your scenarios...
Betting on the game? A legal bookie probably will have an NFC receiver, as for party bets, the currency will just switch to beer or liquor.
Stripper? Receiver at the end of the walkway, perhaps? Just as how there's a line for tips on restaurant receipts?
Panhandler outcome would be desirable, so let it stand.
Many people don't trust bank debit cards because there is no liability protection for them (unlike credit-card-based formats like Visa Check Cards which are subject to mandated consumer rights protections). If an insider or other miscreant gets a hold of the bank card number and the PIN (both quite possible), then it's "caveat emptor". That's why most clearinghouses charge more for handling the latter rather than the former (as that helps them cover the costs of this consumer rights protection).
Probably cigars from razor-thin-margin device makers that basically told the credit card companies, "Make it cheap for us to implement or we won't implement...and since the onus falls to you, any Catch-22 would be to YOUR detriment, not ours."
"Have you noticed most people just drive cars? they don't repair them or know how they work?"
Shirley, no one's given a license to drive a car without being able to perform at least BASIC maintenance on it: learning how to check the oil, top off the basic fluids, knowing where the jack and the spare tire are in the boot (in case you get a flat in the middle of nowhere)? Similarly, there are things about electronics (or anything else) which should be considered "basic maintenance" and are considered part of the cost of having the device.
Re: over and over and over and over and over and over and over and over and over and over...
It makes a "cl-". It's obviously missing the one that makes the "-ang." Shame neither sound is possible unless they're both made at once.
Re: Apple and hardware
But what term would you give Apple? It isn't just a hardware company, nor a software company, and it even has tendrils in consumer electronics (Apple TV, et al). And it's not just electronics anymore as iTunes is a service.
So why not a "solutions" company if Apple's reach is so broad that no other name fits it?
Re: @ LDS
I take it Amazon's market is distinctly empty of direct epub readers...
I think the main reason is market lock-in and security. Lock-in means Amazon doesn't have to worry so much about people who "shop around" and use multiple apps on their devices. It's not like you can install the nook app on a Kindle Fire or the Amazon app on a Nook Tablet (at least, not without some serious tinkering).
Security is one reason the Nook Tablet is so locked down (it was the only way to convince Netflix to allow HD content on it--no spies sniffing the streams, hint hint). If Amazon wishes to stream HD content as well, they have to match Barnes & Noble's level of security at least and probably go one better since it's already known the Nook Tablet's showing chinks. IIRC, none of the "outsider" apps allow for HD streaming.
Re: WIll it be possible
That may take a while. Amazon's probably learned some lessons from last year and will be hardening their new tablets to reduce the likelihood of exploits. The hardest of the lot, the Nook Tablet, is still being worked on, as while there are roots in place, some things still remain locked down. Plus with their Whispersync system they may be better able to detect rooted tabs via MAC addresses or other mostly-immutable hardware info and cry foul.
Nah, we'd probably just go back to dumb phones. Lest we forget, the US carriers weren't so keen on smartphones in the first place (it took the iPhone to force the issue), and removing smartphones may make coverage-starved carriers breathe a sigh of relief
Re: What I'd dearly like to see.
Uh...last I checked, a tin can (or any cylinder for that matter) doesn't HAVE corners. They may have edges, yes, but they're kinda hard to round without (a) defeating the function of the can, and/or (b) turning it spheroid, which can draw it into a whole other patent territory.
Re: Fair enough
And I HATE that. IMO "up to" is outright false advertising because they lead you on but then say they never promised the maximum speed. No, ads should be conservative...and services should guarantee a speed so that they're forces to say "at least" instead of "up to" (and if they can't deliver, they're not fit for purpose and can be pursued legally for it). If you can't guarantee the speed, then you can't guarantee your business and shouldn't be in it. Insist on ABSOLUTE truth in advertising: the truth, the whole truth, and nothing but the truth, so help your deity.
PS. And that goes for ALL advertising, not just electronics and services.
IIRC jet engines are still combustion engines so need a hydrocarbon to burn to achieve thrust. We haven't made any real headway in the realm of pure-energy thrusting at this stage of the game, and while we're working on synth-fuel, I don't expect anything practical for a number of years yet. As for electromagnetic reaction-mass thrusting, I think the forces we can bring to bear at this stage are too weak for use in atmosphere.
Re: My thoughts
New York to San Francisco would involve crossing two mountain ranges (one of which is both pretty tall and pretty vast) as well as San Francisco Bay (IIRC trains stop at Oakland and bus you the rest of the way). I haven't heard much about high-speed trains that pass THROUGH mountain ranges. At least a route towards Los Angeles can skirt the worst of the mountains by trending south where they're shallower and flatter.
Re: My thoughts
IIRC the ground effect is reduced over open water because the ocean is uneven and capable of being pushed by sufficient air. Plus I wouldn't like to take a Ground Effect Vehicle through a storm front or an active sea lane--low altitudes don't allow for a lot of options when Murphy comes calling.
Re: My thoughts
But terrible at long distances. New York to San Francisco. Several hours by plane...several DAYS by train.
Re: Solar - oh FFS
ORLY? Months-long voyages? Rotting food rations (which happen to include rock-hard biscuits and oversalted meat)? BTW, hope you like sauerkraut as that was the usual way to avoid scurvy during those long trips. There's a reason planes" took off". Put simply, we had better things to do than wait to get from point A to point B. Just get us there so we can get on with our lives.
Re: If you want to save fuel
"Andy way the real answer is maglev trains in vacuum tubes doing Mach 3 (well it would be Mach 3 if they were in air). Run those off a few nuclear power stations. Airlocks at each station...and regenerative braking.."
Nice idea, but the infrastructure costs would be immense (somewhere around 10% of the US GDP for a cross-country tube). Not to mention the energy costs needed to power the trains (because the linear motors would need enough electromagnetic force to keep the car and all load afloat) and to maintain the vacuum (as air will inevitably get in wherever it can) and the inevitable maintenance costs for wear and tear, and what if there's an earthquake along the line. And forget nuclear plants--you underestimate the NIMBY Luddites.
One thing not mentioned in the slides is that in carrier takeoffs, military aircraft always go to full power before the catapult launches (that's the reason for the blast deflectors) because the catapult is a necessarily one-way process, and if something goes wrong, you need all the power you have to stabilize yourself and not crash into the sea. IOW, catapults are risky but pretty much the ONLY way to launch from a sea-based platform these days without resorting to even riskier VTOL technology. Since aircraft are already at full power before a catapult launch, why bother with it on land (where full power is used to get aloft--AND can be aborted in the event of a problem).
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