58 posts • joined 10 Sep 2012
The elephant in the room is the inescapable fact, true for all propellantless drive ideas, that it is not only a perpetual motion machine, but that it can be made to generate free energy forever. This can be seen using very basic school physics. Constant input power generates constant thrust (it is claimed) and thus we get constant acceleration. Thus total input energy increases linearly with time, but output (kinetic) energy increases quadratically with time. It should now be clear that if you put this device on a wheel, there exists a breakeven speed above which free energy can be continuously obtained.
Therefore Shawyer is talking out of his arse when he says that the stored energy drops as the machine goes faster. Physics demands there be no preferred frame of reference, so pray tell, Roger old chap, how the cavity knows its velocity relative to its original rest frame?
I believe the thrust measurement is an artifact of induced patch charges. The only way to truly settle the debate is to do a space-based test.
If the Germans were serious, they'd toss out the American military bases. I know the people don't want them.
Re: Some well made points
Iff a > b also
I get the LSD bit...
The sun uses nuclear fusion and puts out 10^26 watts continuously. Just a hint.
Phil Plait of Bad Astronomy fame has posted an animated gif of the left and right NAVCAM views, showing that it's in one and not the other. Normally that would be the end of the argument, but not necessarily in this case. That's because we're looking at irregular terrain and the occlusion details differ between left and right cameras.
There's also the issue of simultaneity between the two cameras; then the left camera showing nothing would mean that the flash only began in time for the right camera to grab it.
Either or both of these caveats argue for Curiosity to live up to her name, and to get the hell over there and check it out. But this is NASA, so they won't.
I wouldn't put it past Microshaft to deliberately leak something damaging to XP into the wild.
Re: "expansion of space briefly exceeded the speed of light "
Coz it surfed on FTL spacetime. Whheeeeeeeeeee!
OK - now we know that FTL spacetime expansion is real, it's time to roll our sleeves up and build that space drive!
Pass the hacksaw, Mabel...and careful with that axe, Eugene.
And this is why moonshine can be dangerous
What if there's nothing there except turtles all the way down...
A way overpaid pompous arse, that Standen. Boot him out.
Could a new video standard, superior to HEVC, be in the offing? If so, I'll work on it.
The NSA have demonstrated beyond any shadow of a doubt that they are incapable of safeguarding the national trust - not to mention international good will. They should be disbanded forthwith. We did without them before. Accountability is a tenet of democratic government, and they spit on the idea.
Rockets are so 1950s, someone said recently - and that's true. The going rate for launch-to-LEO is between $8K/Kg and $15K/Kg - say $12K/Kg average. The sad fact is that right now we have the tech to reduce that figure to less than $5/Kg and launch multiple times per day without destroying any hardware in the process. It's called a railgun, and for my money, it's the only worthy game in town. The ideal location is equatorial and uses a few Km of track for gee-hardened cargo launches, or over 100 Km for more sedate passenger launches. The US Airforce and Navy have been messing with this, but they are really only interested in making ballistic weapons, so they use insane energy densities - about 100x more than a commercial launch outfit needs. The principle is sound, and lacks only investment. Ecuador is a good spot - there are flat stretches leading to useful mountains to angle the launch correctly.
Re: @ DJO Psudorandomosity
Too late. NSA hacked Americium-241 a decade ago. They found a backdoor into the weak force.
There's a ton of bollocks in that article. For one thing, in a lot less than a million years from now we'll be able to incrementally bump out Earth's orbit as far as we like. Or two hundred million? Makes no difference. That resets the clock to 6 billion years. Everyone relax :).
But there's something else. Neglecting other catastrophes, an entire galaxy is headed our way at breakneck speed - Andromeda. ETA estimated at around 4 billion years
We may need to get galactic before then.
I read the report and think that it has a good chance of success. It certainly puts the state-approved scheme to absolute shame, being cheaper to build (10x), faster (5x), cheaper ticket price (5x), safer, more energy-efficient, less environmentally demanding, quicker to build and quicker to board. I hope there are sufficient red faces in Sacramento this week (assuming that politicians are capable of experiencing shame) to kick them into action on scrapping that boondoggle they recently approved, which would end up costing not $68B, but more likely over $100B.
The aerodynamic control and the thermal issues may be problematic, but I see no technical showstoppers here. So let's get this show on the road!
Americans should petition their congresscritters to disband the NSA
What can evolve in a billion years? On Earth, quite a lot. On Mars, maybe more.
I've been using a Logitech Trackman Marble for what seems like well over a decade, and don't want to switch. The thumb is the strongest digit, so natural for movement. It fits to the hand perfectly. And no scraping over a surface either - I detest scrapies.
Re: VP9 may be in the same boat
Looks like the way forward is HEVC-DASH for mobile and thus for everything else.
Re: Bad timing last time?
The Chinese tried to counter H.264 (AVC) licensing with their own "AVS", which was basically a clone (what a surprise), and it fell on its arse. Earlier, Microsoft had tried the same thing with their own "VC-1" (also almost a clone) which fell on its arse. VP8 did too, as the article says. I therefore predict that VC-2, AVS2 and VP9 will all fall on their arses.
Re: Here we go again...
I would say a little chat with their mullah is called for here.
Re: All this....
or a CGI-resurrected Patrick Moore discussing toad sexing. The possibilities with dead celebrities are endless
Common shortcuts to get a human
are 0, 00 or saying "agent"
Like the Black Knight, I leap into the road and block your path leading to an attempt to confuse the Latin roots "before" (ante) and "opposite" (anti). You're not sneaking that one by us.
Re: Sharing: Dream of Four-Dimensional State and Fivengtange-Dimensional State
Suddenly I'm back in the nineties in the early days of UseNet (sci.physics) with the Finn Hannu P, his amazing Space Potato and his little daughter who drew cosmic truths.
Apparently the guy is still going.
Re: I see a new Syfy movie in the making....
Mutations - you forgot mutations. They need to be enormous and with those larger brains, group consciousness emerges and they all do something radical - like run for president or starting a company.
KISS is my creed. That's why I prefer to open docs with WordPad rather than Word, detesting bloat and incomprehensible icon blizzards as I do. Same with email - for years, having had to leave my dear old Eudora (what a gal) - I've used Outlook Express and POP'd all my email accounts down into that. I like to have my email stored locally so it can't be lost, spindled, mutilated or distributed. I've had a Hotmail addy since the nineties, but because of the horrendous spam exposure I experienced, this got relegated to the junk exposure category, and remains my email slut up to the present day.
American logic: learning to shoot things is cheaper than providing its citizenry with health care.
Re: No more worrying about Graphic card memory
Yes - also it's unclear what degree of control the programmer has over CPU/GPU usage decisions. It would be nice to specify that compute-intensive inner loops be executed mandatorily on the GPU, for example. I get the impression that the GPU is auto-assigned only when the CPU runs out of puff, but that's just a SWAG.
I see Space.com is getting all snotty about this. That puritan streak still beats strong in every Yank heart.
It would be really boring without something worthwhile to do. So they need basic tools to build more stuff, like bulldozers, 3D printers, the ability to craft electronics and bowls etc themselves.
But if a bunch of hairdressers are sent, nothing will happen - Golgafrincham disease. "Have you seen my rubber ducky, Number Two?" and "We've decided to revalue the sand"
That's 7.4 * 10^7 W/m^3, about 10x the best Li-ion batteries (1500 W/Kg, 5 gm/cc)
".. in a two-year process known as the long shutdown"
It's actually known as The Long Dark Teatime of the LHC..
“No private detective looks like a private detective. That's one of the first rules of private detection."
"But if no private detective looks like a private detective, how does a private detective know what it is he's supposed not to look like? Seems to me there's a problem there.”
― Douglas Adams, The Long Dark Tea-Time of the Soul
Re: If there is life out there, they're keeping quiet
The maximum advance time on us for another civilisation in this galaxy is around 9,000,000,000 years (9 BY) . The maths is pretty simple: the Milky Way is 13.2 BY old (close to the age of the universe), and the time to evolve from scratch is about 4 BY for our system. 13-4 = 9.
Beautiful but deadly. She's on a full-on collision course with The Milky Way, ETA 1 BY or so. Expect future classroom drills which include the injunction "Duck!". I guess we could start practicing right now...
All your base, your base, are belong to us.
Bring on the Icons
Can't be iconoclastic without icons in the first place. So long live the icons and the shibboleths. Know what I mean?
"The internet without The Register is like a fish without a bicycle" - Anon.
I'm in San Jose California and I get 44 Mbps down and 6 Mbps up with Comcast cable. Along with the mandatory basic TV it runs me about $80 (50 quid)
Re: 8080, bloody Hell!
8080? - pshaw. Around the same time GE MicroElectronics up in Bonny Scotland came out with the CP1600. Yeah, 16 bits in 1974. Stomped all over the 8086, but their marketing department must, in retrospect, have sucked mightily. I wonder who that was? Probably William McGonagle. He was writing poems instead of selling it.
Ah saw a CPU up on a hill
It's no there noo...
It's still no there noo.
Re: What about knob cheese
Man has been cutting the cheese for even longer.
Re: Dorian Gray all over again!
Word on the street is that he's been hacking his own telomeres.
So far so good with The Register's eschewing of American vernacular in a very positive, British sort of way - until this. Oh Dear.
Now admittedly, "Naughty Bottom" doesn't quite have quite the equivalent bite, but can you not do better?
Re: What? No 'Mission of Gravity' reference?
Ayup. I bet Barlenaan is there, falling off 1 cm ledges and screaming. He should do his own show. Make-up would be a bitch, though. All those frakkin' legs.
about that gee thing
If it's the same size as Earth, then the surface gee will be 7g. But if it''s the same density as Earth, then it will only be 7^(1/3) gee or 1.9g. With a few workouts, it could be done. Kinda.
Re: I misread part of that as "Saint Gregory of Torus"
There is the theory of the Möbius... a twist in the fabric of space where time becomes a loop. When we reach that point, whatever happened will happen again...
has communicated to me his mild disdain that not a single entry employed the most excellent Grey Poupon.
Re: no way out?
Heat is not temperature. So we're good to go.
- Crawling from the Wreckage Want a more fuel efficient car? Then redesign it – here's how
- Review Xperia Z3: Crikey, Sony – ANOTHER flagship phondleslab?
- Human spaceships dodge ALIEN BODY skimming Mars
- Ex-US Navy fighter pilot MIT prof: Drones beat humans - I should know
- Downrange Are you a gun owner? Let us in OR ELSE, say Blighty's top cops