1658 posts • joined Wednesday 24th March 2010 19:26 GMT
"the pentane was driven off by heating to be replaced by air diffusing in"
Pentane should diffuse out readily even in closed cell foam
Re : Paradox
A well-run company should return the $40 billion to its shareholders if it thought it had to spend all of it just to survive
"it's just a thought experiment."
It doesn't mean anything -especially in relation to the article and your comments about it
The space traveler example is more commonly called the twins paradox by the way
"society has that much cheap energy"
Energy will never be cheap !
Re : Point 2
So how come synchronized clocks with both train, stationary observer and moving observer will show essentially the same time throughout your 'experiment' and indeed after it ?
Measurements will only differ significantly at close to light speeds etc. unless the measurements are over large timescales
(Yes, I know this has been shown even with satellite clocks and commercial airliners but the time difference is very small, even with GPS satellites the velocity component of the relativity effects only equals ~7e-6 seconds/day - DLZ is claiming something - I'm not sure what I must say)
"This is great news.."
Except for the horrendous amount of energy involved to make it - rather more than 11e-9 J I expect
Re : Photons...
This is basically nonsense.
Mass ( and energy ) do distort spacetime and light can be 'bent' by this but the amount of mass required to significantly do this is HUGE, otherwise you'd see gravitational lensing at every street corner Yet light slows reproducibly in even the smallest amount of material no matter how long the path.
"is that spacetime is distorted by mass."
Don't think this is correct. Spacetime is distorted by mass but that's not the explanation for 'slowing'
My understanding is that it is 'slowed' by interaction with the fields in the material & scattering - the photons do travel at c in the vacuum between particles.
"If mankind continues making progress.......colonising space will be easy"
Oh, really ?
"I can never understand why the idea of saving electricity..."
Agree entirely. In the UK 1 W..year ~~ £1
I too shifted to a dual core atom when they became available for my file/print/misc server
Ah but ..
The follow-on to nothing traveling faster than bad news was that a certain race developed faster-than-light travel in ships powered by bad news but eventually gave up visiting other star systems because they were always unpopular when they arrived.
With a monumental amount more quality control, Microsoft could eliminate Trend's raison d'être...
There fixed it
"I mean in nature, nothing is faster."
According to "The Hitchhiker's Guide..." nothing travels faster than light EXCEPT bad news.
"I drove a Tesla to Land's End from London "
How much did the hotels cost on the way ?
"tricks left in his selves."
Christmas is coming - do you mean ELVES ?
Are they (much) more than 3kW?
They are indeed - although in the UK a ring main is 30A.
HOWEVER the real point is that there isn't enough generating capacity to charge vast numbers of electric vehicles esp. if people want rapid charging
From OpenSUSE 11.3 (current release)
The following requirements should be met to ensure smooth operation of openSUSE 11.3:
* Processor: Intel: Pentium 1-4, Xeon or newer; AMD: Duron, Athlon, Athlon XP, Athlon MP, Athlon 64, Sempron, Opteron or newer
* Main memory: At least 256 MB; 512 MB recommended
* Hard disk: At least 500 MB for minimal system; 2.5 GB recommended for standard system
* Sound and graphics cards: Supports most modern sound and graphics card
Presumably they are wrong too. Firefox is the default browser and OO is included
why does it zap your mind ? - it's just physics
Energy Required. →
True enough about the energy demands but it is truly awesome. To get 1 tonne to 10% light speed takes the equivalent of ~1e11 MW.hrs and the same again to slow down
( or ~~£10 billion at UK electricity prices )
"it took 5mn to load.."
OpenOffice takes ~ 10 secs to load & load a quite large spreadsheet from a network drive on my system even using an old celeron laptop. So something's wrong
OpenSUSE 11.2 and OO 184.108.40.206
Yes, OO is not quite as good as Office and indeed using v large spreadsheets it's too slow but for most people it's fine
"we are the only technological spacefaring race ....."
OR the only method of travel is sub-light and too slow and energy intensive to allow any sig. expansion
"so I estimate there are at most 42....."
I guess the downvoters haven't read "Hitchhikers...."
Re : Pah!
It's accuracy is known to ~50 parts per billion which is rather better than the Hubble constant which is ~ +/- 2%
"aligns more closely with the smaller scales involved..."
Bit of a Hobson's Choice really - I don't think working with 1e-18 kg or 1e-15 g makes too much difference
Re : height
It's not that clocks run at different times - it's time that runs differently.
It's affected by lots of stuff, gravity, velocity, acceleration. That's why the train is usually late
Re : "kilogramme of electrons......."
If I had a kilo of electrons in one hand and a kilo of protons in the other - I'd be very dead I think !
Re : UK and US →
All the scientists do - as well as most engineers etc
I agree with a lot of this. It's very noticeable that VNC on my home network is perfectly usable for routine stuff but when using VNC by SSH from my holiday home to my home network (final link being ~3Mbit/500kbit ) it's rather a dog and just using X is MUCH smoother.
Re : Weather?
Flying above the clouds !
"In vendor supported companies, it's not possible"
As I have pointed out - wait for the update then. There's no problem unless your existing security is lacking.
I also find it hard to believe that you can't apply the simple workaround or remove the module altogether without the vendors says so - if that's the case why have a sys. manager at all ?
"that's all a power user like me needs"
In "industrial strength" science - hardware stereo, xeons, multi-gigabytes of memory and the stability to run molecular modeling or dynamics for days on end on a workstation whilst still doing other work. So Linux then, esp. if one needs to offload the REALLY big jobs to Linux farms.
Re : Seriously?
As many people have pointed out : if you are REALLY worried about this than it's possible to do something about it now, or more simply use the workaround. Most people don't have to do anything, just wait for their distro updates (unless their system's security is poor - in which case they have other worries)
"No one likes people being as smug and childish as you"
Or indeed as anonymous as you.
"It may have been fixed, but if that fix isn't in the repos"
That is true but at least the fix is ready and anyone who cares to roll their own can incorporate.
As mentioned there is a simple workaround anyway
Bet you wish MS could handle it in such a rapid, responsible way
Extracted from link in article
The following timeline details Linux's response to the reported issue:
2010-10-13 Vulnerability reported to Linux security team
2010-10-13 Response, agreement on disclosure date
2010-10-19 Fix publicly committed 
2010-10-19 Coordinated disclosure
There is also a workaround until you get/compile a new kernel
"only Wankels I heard of are petrol"
I have the feeling that Rolls-Royce developed a wankel diesel for use in tanks (?). The novelty was to use a two rotor engine with the first acting as a supercharger
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