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Comment Re:Why go without GPS? (Score 1) 30 30

Indeed, Titan the easiest large world to explore by drone, so long as they tolerate the cryogenic conditions. A highly efficient version could potentially fly continuously just on RTG power (there have been proposals along these lines), although anything adapted to deal with the added weight / inefficiency of hardware to carefully land, collect samples, carry them, etc would probably have to use flight batteries.

Submission + - JAXA successfully tests its D-SEND low noise supersonic aircraft

AmiMoJo writes: JAXA, the Japanese space agency, has successfully tested it's low sonic boom demonstration aircraft D-SEND#2. The unmanned aircraft is floated up to 30,000m by balloon and released, falling back to earth and breaking the sound barrier in the process. The sonic boom created is measured on the ground. The project aims to halve the noise created by sonic booms, paving the way for future supersonic aircraft.

Comment Cherthoff is a goddamned criminal. (Score 2) 72 72

Besides perjuring himself in testimony to the congress, he's responsible for billions of counts of felony wiretaps against innocent people. That motherfucker belongs behind bars, not shooting his mouth off about how we should all make it easier for fascist scumbags to wipe their asses with the constitution.

-jcr

Comment Re: Truck Stops, Gas Stations, etc (Score 1) 868 868

I called you daft for not understanding the concept that someone who runs a swapping service station covers all costs related to their business activities and rolls them into what they charge for service, just like every other business does. I fail to see what is hard about this for you to understand. The answer to "who pays for X cost" is *always* "the service provider, with the costs indirectly passed on to their customers via the rate charged".

Really, you think that bad fuel can't damage an engine? It can and does. And it's the supplier who ultimately bears the cost. No, "bad electricity" is not a proper analogy (although your sarcasm in this regard is funny given how many devices are damaged by surges every year); a gas station fuels vehicles by insertung fuel into them, while a swapping station fuels vehicles by inserting pre-charged batteries into them. Batteries correspond to fuel in this context.

In what world do you live where car parts are regularly inspected by the manufacturer after being installed into the vehicle? Cars have hundreds if not thousands of parts more safety critical than a battery pack, and yes, manufacturers *are* liable if their failure modes due to damage pose an unreasonable risk of injury. Think of a famous failure case - say, for example, the Ford Pinto fires. Were the gas tanks defective? Nope. But the cars had an unacceptably bad failure mode in certain types of crashes, and it fell on the manufacturer to fix it - as it always does. A part must meet its use case, and if its use case is "deliver electricity from a swappable system and not burn the vehicle down if damaged", it has to contain the necessary safety systems to do that.

Lastly, you're still stuck in bizarro world where ICE vehicles full of combustible fuel are incombustible, whereas EVs with no combustable fuel and more often than not with batteries less flammable than a block of cheese (once again: *not all li-ions are the same*!) burst into flames left and right. Meanwhile, in the reality that the rest of us live in, the opposite is true. Heck, last summer I saw a flaming hulk of a passenger car with fire crews trying to put it out to extract the burned bodies of the two tourists who had been driving it. Meanwhile, Teslas and Leafs have been in many wrecks - go to Google Images and search for "crash tesla" or "crash leaf". Where are the fires from these oh-so-flammable vehicles? Yes, they have happened, but at a much lower per-vehicle rate than gasoline cars according to NTSB stats. Sorry, but your fire conceptions are just not based in reality.

Submission + - Critical BIND denial-of-service flaw could disrupt large portions of Internet->

alphadogg writes: Attackers could exploit a new vulnerability in BIND, the most popular Domain Name System (DNS) server software, to disrupt the Internet for many users. The vulnerability affects all versions of BIND 9, from BIND 9.1.0 to BIND 9.10.2-P2, and can be exploited to crash DNS servers that are powered by the software. The vulnerability announced and patched by the Internet Systems Consortium https://www.isc.org/blogs/cve-... is critical because it can be used to crash both authoritative and recursive DNS servers with a single packet.
Link to Original Source

Comment Re:IE all over again (Score 1) 336 336

Well, not to defend Microsoft, but this behavior is probably the most effective way to get the kinds of people who need to be kicked off of IE to actually be kicked off of IE. You know, the users who probably wouldn't even notice that Edge isn't IE in the first place.

The rest of us can take care of ourselves.

Out of all the stupid, evil or self-centered things Microsoft does, this one's frankly pretty low on my list.

Comment Re:IE all over again (Score 1) 336 336

I've been living with Windows 8 because I can work around most of the stupidities, but when I bought my wife a new laptop with 8, she hated it so much she traded it to one of the kids for their Windows 7 machine.

If I could ask for one thing in Windows 10, it would be the ability to make the desktop look like Windows 2000. That's the last version of Windows I thought actually looked good (although 7 wasn't bad). But with this stupid cult of "flat" you can't even do that any more. That was one of Microsoft's stupider and more arrogant moves in the UI field, because you could easily write a book out of all the many reasons why the "flat" look is inferior. The flat look is like reverting back to Windows 2, although at least with Windows 2, the color palette was so small stuff didn't all run together.

Comment Re:Why go without GPS? (Score 2) 30 30

On the Moon or Mars they wouldn't reach very far. But a RTG-powered version on Titan would have unlimited range (although may need to land periodically to recharge its flight batteries). And even a rocket or gas jet version would have quite significant range on an asteroid.

Such a design is obviously going to be very mission sensitive, hence the need for different propulsion systems. Some missions would benefit significantly as well from wings to allow for long distance flight on bodies with atmospheres (Venus, Titan, maybe Mars, etc). A couple worlds, such as Titan, might benefit from landing floats. And so forth. But that's where rapid prototyping tech (such as 3d printing) becomes useful - they engineer the base model and then can play around with variants with ease. Hopefully in the end they'll have a sample collector module with a workable version for almost any body in the solar system. And for the interests of science, we really need something like that, a universal adaptable drone module - to be paired with a universal adaptable ion tug module, one of a couple variants of a universal adaptable reentry / landing modules, and the same for adaptable ascent modules.

It's impressive what science can be pulled off on the surface of another world. But it's nothing compared to what we can do here on Earth with a sample return.

Comment Re:"We have a profound opportunity to distort." (Score 1) 61 61

It will also vary depending on the performance of the vehicles immediately ahead of, oncoming-and-passing, or crossing ahead of the street view vehicle. Especially the first: The sensor will be running in the exhaust plumes of the vehicles ahead of the street view car, so the map will be a very non-random sampling.

On the other hand, the partculate and "volatile organic compounds" sensors will produce some very interesting data. The latter is what the federal standards call "unburned hydrocarbons" when emitted from an engine, and the output of modern engines is vanishingly small. But many species of evergreen trees emit them in enormous quantity, as part of their ongoing chemical warfare against insects that eat trees. That's what the blue haze around pine-forested mountains (such as "the Smoky Mountains") is about. You can literally destroy (by extreme and long-term contamination) an automotive conformance test cell (the room where they test the car's emissions), requiring it to be torn out and rebuilt, by placing a Christmas tree in it overnight.

I expect some towns in remote, forested, mountain areas, where people move "for their health" and "for the clean, fresh, air", to get a rude awakening. B-)

But I doubt it will affect the extremely tight standards for automobile engines - except maybe to cause a flap that tightens them further. These days many engines are so clean that running then can IMPROVE the air quality in some places (such as portions of Los Angeles, with topography that created such a thermal inversion that a single settler's campfire could leave the whole valley filled with smoke for a day or more) by inhaling and burning far more hydrocarbon and particulate pollutants than they create.

Comment Re:Truck Stops, Gas Stations, etc (Score 1) 868 868

In one truck, yes. The frequency of dead batteries, however, will be the same as passenger vehicles; who will dispose of those?

Seriously, you can't be this daft. The operator, of course, with the price rolled into the service cost.

All of which are relatively involved.

No, they're not. Even your laptop battery estimates its capacity, and that's about as simple as li-ion battery packs get. Coulomb counting, voltage measurements at start and end compared to the charge temperature, charge voltage curve shapes, direct measurement of pack heating over the course of charge to measure internal resistance, and about half a dozen other methods are all usable and widely used to estimate capacity remaining in a pack. Pretty much every modern EV and hybrid in existence checks its battery pack's performance at least at the pack level, if not the individual cell level (Tesla does it at the "brick" level), to see how it's aging and when components or the pack as the whole need to be replaced.

Measuring remaining battery capacity is a concept older than the light bulb.

testing and inspecting a battery for damage and danger conditions so you don't install it into someone's vehicle and get a lawsuit for "vehicle exploded in a giant flaming blaze" (or drive all your customers away with "we don't test our batteries for anything but charge, and damaged batteries may set your truck on fire") is wholly different.

Just like gas stations check their gas for impurities that can cause damage to an engine? No, it's the manufacturer's issue to ensure that the product meets its stated usage specs - in this case, the specs including safe handling of damage and X number of swap cycles. Meeting damage control specs is why Tesla isolates each cell in a canister to prevent failure propagation. And why packs always come with fuses/breakers that blow when the pack gets wet or there's otherwise a short.

(Just ignoring that many types of li-ions don't burn even when abused. Tesla uses standard cobalt-based 18660s, which is why they have to have a failure isolation system, but vehicles like the Volt and Leaf use more stable spinel chemistries)

That may result in diesel being the cheaper fuel by far

Tesla's battery packs have an 8 year, unlimited-mile warranty. Even if we assume that they're only good for 1000 full charge cycles (which should be well on the low end), at 30 tonne-miles per kWh of charge, times 1000 cycles, and $150/kWh for the pack, that's 200 tonne-miles per dollar of pack capital cost. A diesel truck will get about 120 tonne-miles per gallon of diesel, and diesel costs somewhere in the ballpark of 6x more than electricity per unit range (depends on your location), meaning that the electric version saves about 3-4$ per dollars of energy cost per dollar of pack capital cost.

There are a lot more batteries on a truck.

Wait, so you're picturing them being done individually, one after the next? Seriously? *smacks forehead*

Fortunately, if you mount batteries under there without a bunch of armored doors and other shit to hold it all together, the cargo container catches fire when the batteries become damaged.

In the parallel world where EVs are always catching on fire, and petroleum-fueled vehicles aren't - quite unlike our actual world.

Economists state their GNP growth projections to the nearest tenth of a percentage point to prove they have a sense of humor. -- Edgar R. Fiedler

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