1424 posts • joined Wednesday 24th March 2010 19:26 GMT
"'on arse most of the day'"
All the more reason to have sufficient exercise if you do have a sedentary job. Even some quite intelligent people think that exercise is merely an aid to loosing weight whereas exercise, reasonable weight and diet are all independent markers for longevity.
Not gone into this in detail but it seems readily available...
"The Android build is routinely tested on recent versions of Ubuntu (6.06 and later),"
"Andy Burnham".......defended the scheme"
Oh good grief ! - in a deep hole and still digging !
"When we can get a solar panel that can literally power an entire car"
I think peak sunlight is only ~1kW/m^2. So I don't think we will ever see that except for exotic, lightweight cars running in a very sunny climate.
Probably just pass straight through relatively thin skinned ships. Might be nasty but not terminal.
"how to get Skype to work with webcam on my Linux box"
Funny it works on all 7 of mine ! - and they are all different hardware
"6-8 hours on the command line it takes"
Well I support 7 Linux systems and whilst I agree that they are stable, reliable and require little attention I can't agree with the difficulty of configuration. Using SUSE 11.2 I NEVER use the command line to install/configure and the last machine took 20 mins from start to finish (+ updates )
"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%