6409 posts • joined Wednesday 10th June 2009 19:28 GMT
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Re: Knew It Was Coming
"This sort of thing has been discussed in military confrences in the past but considered low risk mainly because:
A) It was assumed that technology to interfere/control civilian aircraft systems could not be obtained by civilians.
B) State entities that could exploit civilian aircraft systems vulnerabilities would not because they are civilian aircraft and not considered military targets."
So the first, last and onlylime of defense has turned out to be the assumption that "smart people who want to do this cannot get hold of the tech to do so"
Remember the video feeds from drones in Afghanistan which also were thought "secure" because a) They can't do this and b) What use would insurgents have with seen themselves? Answer by seeing what you see they can know where you are not looking.
Turning a brain clear is pretty impressive.
I suspect it gets really clever when you add stains which are specific to various chemicals and see where they are concentrated.
This is just the Start of the Art.
Re: Commercial power generation potential?
"Why not use the power to accelerate the propellant directly such as an ion engine? Why bother with all the extra gubbins at all?"
Try and find an Ion drive with a thrust of 3000N while retaining an Isp of c3000secs.
Re: So, for those of us who are a bit thick...
"so there's still a fair bit of science and engineering to be solved"
Definitely. This is far from COTS technology.
"it's a probably worth about an 8 on the 'fusion thing worth getting excited about' scale"
With the caveat that this applies for its use as a propulsion technology. The electric power generation application remains as far off as ever.
What is that? About 10x the rate of inflation?
Somebody pointed out that when the UK Premier league started player salaries were about 40x support salaries.
Now it's more like 150x.
The cult of the "superstar Board." Heads we win, tales we still win.
But note with so many shares held by hedge funds/pension funds too many shareholders are too f**king gutless to say "No, you don't deserve this."
Re: So, for those of us who are a bit thick...
"This is it in summary, yes? "
"The only real issue is going to be lifting a 150t spacecraft into orbit in the first place"
That's not exactly trivial but there are options.
" (and presumably telling a lot of people not to look at the sky when it starts up, since that would be like staring into a teeny weeny star)?"
People look at the Sun (for very short periods) fairly often and (as long as it is short) that does them no permanent harm.
"Please someone tell me the downsides."
Well the scale up is pretty substantial. The power array would be the 2nd biggest after the ISS (most PVs on sats are 1/10 the size at most). So far (IIRC) they've demonstrated single shots with Al rings without fusion and this mechanism has to deliver these rings at 1 a minute over 2 three day periods (which is a serious mechanical engineering problem in a space grade vacuum), coupled with dumping enough energy into the pellets (and actual pellet mfg on this scale is pretty substantial as well).
I guess the key question is how viable is sub-breakeven fusion. This is the critical bit that all those rings wrap round to give the thrust.
A comparison with the VASIMIR concept (to see what things it shares) might also be useful.
Re: Commercial power generation potential?
"If the fusion is effective enough, you've got a system pushing out more usable power than went into it."
That's the point.
It is not that efficient.
The goals of space transport and Earth power generation are sufficiently different that this concept is good enough to push things around in space but not good enough for Earth power generation.
The latter (it turns out ) is much harder
Re: Are they serious?
" No I think it's named after some famous military Merkin."
Well that was my rather obvious guess. US warship, some famous (to Americans) naval figure who no one else has ever heard of.
"(I've been there, it's very nice -- they have a very impressive art museum)."
I did not know this.
AFAIK most people went to PR (or the 51st state as I like to think of it) for booze-and-screw holidays. Like Cuba before Castro.
Re: Air force ... cyber-weapons ... huh?
" high technology pork,"
Yumm. The best kind.
Re: Yep nothing to see here
"Obviously though you need airpower but it didn't make a lot of sense giving them their own bureaucracy in 1947 "
I think it might have had something to do with them having (at the time) the only effective nuclear delivery capability.
They operate 2 legs of the US nuclear triad.
And I think it's safe to say you will pry that power out of the cold dead hands of the chief of the AF, but not before.
Re: Quick - use the second amendment....
"A nuke warhead is a weapon, too, but I have been denied the right to put one in my back yard."
I think it's the fact you asked that some people might find a little bit disturbing.
" Pay no attention to that surveillance drone circling your neighborhood."
But surely you know the biggest threat to orderly government is the people?
For those just knowledgable enough to be dangerous.
You're looking at pellets in the 100s of gram range accelerating a vehicle 150 000 bigger. Force = Mass x Acceleration so at 30Km/s and 0.1Kg you get a force of 3000N. By Newtons 3rd law on a body of 150 mt that's about 0.02 m/s, or about 0.002g.
So no people won't be tripping over each other. The fact it runs for 3 days might have been another clue that would not be happening.
The short impulse does make it a shock load but the same could be said of the explosions in the cylinders of a car (which this somewhat resembles).
NIAC is low budget, high risk investment into potentially game changing technology .and they've actually done phase 1 of this. All other fusion proposals have come from a fusion power background where breakeven and electricity generation are key goals. They dumped these and followed the analysis. From their PoV wrapping a fusing plasma in a series of magnetically driven foils (IE thin sheets <1mm thick) is actually a good thing as it gives them more reaction mass to push out the back.
Note they still have not generated fusion which I think is a pretty big point but if they do that will be a bargain. As for a 200KW PV array keep in mind the ISS array while big is several generations behind the SoA in PV cells, either mult junction or using solar concentrators.
"I look forward to this system working, but I do wonder what it will take to loft this 150-ton system into orbit – at least a Saturn V class chemical rocket."
Then they will have found an actual use for the SLS apart from keeping a bunch of people in Utah building large solid fuel boosters.
Of course if NASA wasn't so gun shy of orbital docking and rendezvous they could launch it in sections on rockets that already exist.
But will it measure the *speed* of entanglement?
Only if as the Chinese state its around 13000x c that's still not going to be very far. At around 3 ns/m the entanglement would take about 1-2ns to propagate (It's too early to be reaching for a calc for actual numbers).
This is a good use for the ISS. Unique environment and fairly simple hardware (could all the kit already be on board for other purposes?)
It's just an impression but magnetic based systems seem to be more radiation resistant and higher density but historically have been a bit slower. Not an issue for things like smartcards or crypto storage keys.
Is IARPA the new name for DARPA or an expansion of them?
Like a lava lamp for people with X ray vision
But apart from that notion this is a very clever idea that totally side steps the classic problems of getting the H2 away from the C.
How many people (who don't investigate liquid metals) would have thought of this one?
Note that with modern high temperature insulation the column can be kept hot with relatively little heat input, obviously bigger diameter, more volume, less surface area to emit it over.
Version 0.1 tech but what potential.
Will probably remain free to air in China.
After all Rupert is a man the Party can do business with.
Re: "It is pressure, real pressure - 80 cold calls a day,"
Those are the appointment makers. The sales types actually go out and visit the
suckers prospects, have expensive lunches and organize the technical briefings at the local lap dancing club (at least the ones at Adobe did).
I wonder if tape data recovery is as hard as disk recovery.
I'd bet not.
When your media is unreadable it's access speed is zero.
Yes the solid state part is important. Yes it will hurt some targets, but how narrow band is it?
Because if this is a single frequency device then fabricating interference mirrors which are 99.99% reflective at the target wave length is very possible.
It's efficiency is good (for a laser) in the high 20%s and it sound like it's power budget is actually quite reasonable.
Probably it's greatest benefit will be to move the tech of laser lightcraft a step closer to reality.
The dazzle issue against enemy pilots does sound like UN Convention on the Rules of War violation however.
Re: What about satellites?
"Hopefully this thing has enough to take out overhead satellites in space also."
It doesn't. It really does not have that level of power.
Re: Are they serious?
"They named a ship for a *pimp*?!"
No I think it's named after some famous military Merkin.
OTOH Calling it the USN "Pimpstick" would send a whole different message to foreign states.
Perhaps with some nice shiny chrome exhaust pipes on either side of the superstructure.
My coat is a floor length Astrakhan which goes with my Leopard skin pork pie hat.
Re: Pulse is Infrare, So Silver Paint Probable Won't Make A Difference
"I doubt very much that a $5 tin of silver paint would be an effective countermeasure to a $32m frickin laser."
And you'd probably doubt that the watery atmosphere of Eastern Europe would destroy the Stealth coating which cost $Bn to develop.
Except that on at least 1 occasion that is exactly what happened.
Going back to Vietnam the US Army developed the "people sniffer." This was decoyed by a large well filled latrine bucket, wasting several B52 fulls of bombs. Total system nullified by the results of a couple of bags of rice.
Re: Hacking Hymns
"I can easily imagine the fun that could be had by changing a few words :"
I find your lack of faith disturbing.
20 different turbulence metrics and no agreement.
Looks like there's a shed load of rubbish that needs to be cleared out here. Some of them don't seem worth the computer time spent used to calculate them.
Yes the graphs are alarmist (Nature now has a separate magazine devoted to "climate change." Business is looking good to my cynical business eye).
But keep going with at least trying to get some consensus.
Usual caveats. No new on site collected data. Obviously how realistic is this IPCC emissions scenario? Will climate modellers down grade some of the less accurate metrics or keep on using them?
"methinks redneck cant afford cable"
Nah. They'll just have to cook up more crystal meth to pay for it.
"Going pay cable only reduces their customer base."
We can but hope....
Re: Just a citation is needed
I have seen this film.
I have no idea what film Mr Tucker saw.
Long story short. It calls for quite a few regulators to be locked up (especially the ones who entered the revolving door at the Fed from some of the major banksters they would begin regulating).
It also suggests that quite a few of these deals where driven by (for wont of a better term) a bunch of cokehead a**eholes. Not exactly my definition of "smart." Cunning, convincing, self serving and self deluding perhaps.
Note what's impressive.
It's hours, not days or weeks.
It (can) make detailed DNA analysis routine
Which can include identifying what pharmaceuticals cannot be metabolized by someone (making their prescription completely pointless, of which there are at least 200 known) as well as what chemo drugs could work for cancer treatment.
In fact it could cover any condition for which a large number of drugs exist but but whose performance varies widely on an individual basis.
Thumbs up for (potentially) bringing it out of a rare lab technique and into a routine diagnostic.
"deposes the fat kid from South Park"
"You will respect my authority"
Best line all week.
Re: The loser wins
"One chilling idea is that poor young 'un, realising he has no control over his army generals decides the only way out for him and his country is to have a brief but devastating war in which NK loses spectacularly, This not only rids him of a horrendous war machine that has been gripping the nation for many years but with a bit of luck will allow him to slip away into exile somewhere (China maybe) to live out the rest of his life in relative western luxury. Another bonus for him is that the massive death and destruction would reduce the starving millions and re-inject some investment into the country in the form of aid packages. Plus SK businesses would be in there like a shot to make use of the cheap labour. So losing a war would be a win both for him and his country. Give it 10 years or so and they will be welcoming him back with open arms as the new freely elected president of a completely revitalised NK!"
Exactly the kind of thing some self obsessed a**ewipe like him would do. Fat cats don't like to miss their cream.
How many people here have a mortgage?
I've read the self reliant, save and don't borrow Norman Rockwell BS and in reality it does not happen that often. In hindsight increasing your lending in a market where defaults are rising is pretty stupid (if you actually care about having a long term business, which HBOS senior management did not).
Most people in the UK could not buy a house outright and don't know anyone who would let them buy it directly from them (IE a sort of HP agreement)
BTW half of the German banking system is built on small local banks, more like credit unions.
When a proposal was made to relax the rules on the locality of UK credit unions the UK banks
mouthpiece spokesperson protested this would increase default risk and competition.
Let me suggest a PoV. The UK housing market is dominated by big house builders who control huge land banks and big banks who control mortgage lending.
It is in their interest that housing remain scarce, prices high and quality low. What to do about it is the problem.
Re: Not sure about the conclusion
"The conclusion suggest that, as many suspected, the right thing to have done would have been to let RBS, Northern Rock etc. go to the wall. That would certainly be the right thing in any ordinary market."
Correct. In terms of the real world what would have happened that would be so bad?
"But banks aren't part of an ordinary market. The deposits they safeguard, or fail to safeguard, aren't safeguarded by them at all. "
Then perhaps it's time they stopped pretending they were and people accepted that putting money in a bank is no more or less safe than taking shares in say a book maker.
"They're underwritten, at least to an extent that matters, by the taxpayer. So we had to bail them out."
Assertion <> to conclusion. The underwriting is up to a fixed limit. So no the UK Govt did not have to bail them out. They were convinced that they had to do so. That's not the same thing.
So what's in it for Google?
They're in this for the bucks and they don't take prisoners.
It'll be more than just letting them do business more easily. It'll be an actual way to generate revenue.
Yes I am that cynical.
"I will go down, but I will go down as the man who nuked Honolulu!"
Not cool dude.
Time to chill some of this Whoops Apocalypse rhetoric.
Re: Mixed lessons from history?
"Although to be fair MacArthur was relieved of his command for suggesting it."
I dimly recall something about "50 atomic bombs should be enough to get the job done" was his assessment.
Fat boy would do well to remember the US is unlikely to be on a leash this time round.
A note on the history NHS number
When it was founded a way was needed to issue everyone with a number.
The number is derived from the wartime identity card number.
This smells like a late day data grab.
I like to think of it as "Secondary banking crisis, 2.0"
Institution picks up short term money market borrowing to cover short fall between assets and loans, relying on house price inflation and sufficient good payers to keep the cash rolling over.
Something rather like this happened in the early 1970s.
It will happen again because all bankers know that "liquidity" requirement (of X% of all funds staying in the bank and being available) is set by regulators who a) Lack banking experience b)Have an exaggerated sense of risk about investments c)Are Guardian reading pinko Liberals.
So whatever limit the regulators set it will just seem far to high (CDOs were exactly a way to fame the system but that's another story).
The notion that their pursuit of ever bigger bonuses might be skewing their judgement (or they might have their heads buried firmly up their own arse) of course never enters their thinking.
"The SRBs kept going until the Range Safety Officer sent the destruct command a few seconds later. "
That inability to shut down large solids without huge thrust loads is what makes them so damm dangerous for crewed space flight.
"Unfair to NPE"
So trolls would have to pay a kind of "hunting tax" before they can start threatening end users and companies that actually use their patents don't.
Well boo f**king hoo for NPE's.
Still at least this lot were prepared to name their client without pleading the 5th.
Thumbs up to Rackspace. Trolls are not like "real" companies. Being sensible and trying to settle grievances does not work with them. They need to be smacked and smacked hard.
Apple. Guarding your privacy
Are you f**king kidding me?
"It is in England and Wales, if performed in a commercial setting."
I think these guys
scam contention was you'd downloaded their clients pron for you personal consumption. TBH playing it in a commercial setting might actually make their case just a bit more creditable.
"Section 107 is an evil piece of legislation..."
I sense the hand of the Dark Lord.
Perhaps it would help if we just called it "The right to silence."
In police interrogation it would be answering "No comment" to questions by the police.
But I'd love to find any other cases where the
lawyers have plead the 5th.
Man i/c of enormo-pervassive new dole system says "no problems here"
Strangely I find myself deeply unreassured.
Small factoid. Despite recent coverage in the Daily
jailbait Heil the proportion of families with more than 2 children claiming benefits is <<1% of all claims.
AMS is a very large lump of hardware and getting it to ISS was quite a feat. This should just be the start of results in this area.
BTW I think the magnet (a key part of how it can resolve what particles and what energy they have) was made in the UK.
I wonder what this will do to the Drake equation.
In the 1960s no one even knew if any other star had planes, let alone Earth mass and temperature.
Now we seem to be closing in on an actual number
That's pretty exciting. It also moves the debate from "Why leave the solar system, there's nowhere to go?" to "If we did leave the solar system, where should we go?"
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