* Posts by Chemist

2677 publicly visible posts • joined 24 Mar 2010

Lane Fox promises sub-£100 PCs

Chemist

"Open Office, Firefox and Thunderbird are just the same...."

and Google Earth, VLC, Skype

California's green-leccy price system will stifle plug-in cars

Chemist

"is there a particular reason generic hydro....."

Only that the high capital costs are not being serviced when the generators are off I think

Chemist

"8bls of gas to a gallon, even adding air to the mix, does not equal 19lbs of CO2"

I'm afraid it does.

In more sensible units a mole of octane (C8H18, 114 g) burns to 8 moles of CO2 (352 g) and 9 moles of water (162g) so your 8lbs of petrol will give 24.7 lbs of CO2.

On the other hand the green credentials and economics of electric vehicles are extremely dubious

Special Ops satellite-bitchslapping hydrogen strato cruiser flies

Chemist

Uh?

"The craft's main special sauce is its hydrogen-powered generator, reportedly based on a fairly normal combustion engine, which supplies power for both propulsion and payload."

Main puzzle to me is how they store the hydrogen. If it's cryogenic, which I assume it has to be, does the boil-off rate match the consumption.

Custom ICs in small numbers to be cheap as (normal) chips

Chemist

See..

http://opencores.org/

Couch potatoes riddled with heart disease

Chemist

"'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.

Chemist

Reminds me ..

that someone a long time ago (17 or 18th century I think ) said " make time for exercise now or time for illness later"

CES wrap: let the battle of the tablets commence

Chemist

Not gone into this in detail but it seems readily available...

http://source.android.com/source/download.html

http://android.git.kernel.org/

"The Android build is routinely tested on recent versions of Ubuntu (6.06 and later),"

Ford unveils all-electric Focus for 2012

Chemist

One word

....claim !

Microsoft confirms code execution bug in Windows

Chemist

"an adept, intelligent programmer"

First BASIC I ever had was a 6502 (UK101) with a whopping great bug in the garbage collector. That's how good he was.

Chemist
Linux

"Microsoft for a fact hires quality programming talent"

and has lots of development budget no doubt.

So how come a loose bunch of (initially) part-timers have managed to put together a better OS ?

Civil servants touted ID cards to friends, family as flop loomed

Chemist

"Andy Burnham".......defended the scheme"

Oh good grief ! - in a deep hole and still digging !

'London black cabs to go electric in 2 weeks' – Boris Guardian

Chemist

"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.

FBI 'planted backdoor' in OpenBSD

Chemist

"With open source, the barriers to entry are lower."

Nonsense !

Chemist

"happened in Linux"

After following the link it looks as though this 'attempt' was spotted quickly and wouldn't have made it to the compiled code stage anyway.

'Blitzer' railgun already 'tactically relevant', boasts maker

Chemist

"cannonballs"

Probably just pass straight through relatively thin skinned ships. Might be nasty but not terminal.

Google delays Chrome OS, punts brandless beta netbook

Chemist

"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

Researchers bypass Internet Explorer Protected Mode

Chemist

"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 )

LG kicks off work on quantum dot TV

Chemist

"..three spatial dimensions.."

Agreed, but I think the real magic is being able to tune the electronic properties merely by tweaking the size of the dots

How to kill your computer

Chemist

"Note to self, only replace fuses with the correct values."

I doubt a 2amp fuse would have saved you - something was very wrong. Fuses are just not that sensitive anyway

Chemist

Pretty impressive !

"until he sent pics from the exploded laptop "

And still able to connect to the interwebs !

How I used Space Shuttle tech to insulate the living room

Chemist

"the pentane was driven off by heating to be replaced by air diffusing in"

Pentane should diffuse out readily even in closed cell foam

Attachmate: Novell's openSUSE project is 'safe'

Chemist

"OS coders will start to create the most nasty viruses"

That's a great way to win hearts and minds FFS !!

I think I'd like to pretend that you didn't say this

IBM uncloaks 20 petaflops BlueGene/Q super

Chemist

Re : Linux processors

"1.57 million cores dedicated to processing calculations, with another 98,304 cores for running the Linux kernel..."

Why Microsoft is Acorn and Symbian is the new CP/M

Chemist

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

'Spacetime cloak' could act as 'Star Trek transporter'

Chemist

"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

Chemist

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)

Chemist

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.

Chemist

"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.

Has CERN made the VATICAN ANTIMATTER BOMB for real?*

Chemist

"society has that much cheap energy"

Energy will never be cheap !

Chemist

@ravenviz

"This is great news.."

Except for the horrendous amount of energy involved to make it - rather more than 11e-9 J I expect

How to make boots on Mars affordable - One way trips

Chemist

"If mankind continues making progress.......colonising space will be easy"

Oh, really ?

How I built a zero energy cost, zero carbon home server

Chemist

"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

Hadron Collider switches to heavy ions, tinfoilers wet pants again

Chemist

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.

Chemist

"I mean in nature, nothing is faster."

According to "The Hitchhiker's Guide..." nothing travels faster than light EXCEPT bad news.

Security major strops over MS free scanner auto-downloads

Chemist

@Red Bren

With a monumental amount more quality control, Microsoft could eliminate Trend's raison d'être...

There fixed it

'Hippy' energy kingpin's electric Noddy-car in epic FAIL

Chemist

"I drove a Tesla to Land's End from London "

How much did the hotels cost on the way ?

Chemist

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

Apple’s iPad lead will face pressure from Google and Nokia

Chemist

"tricks left in his selves."

Christmas is coming - do you mean ELVES ?

DARPA, NASA team on '100-Year Starship' project

Chemist

Nice..

Asimov reference

Fedora gets nips and tucks with 14 release

Chemist

Hardware requirements

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

Chemist

"Firefox is sitting at 335MB "

105MB + 20 shared here

Total load with KDE + firefox ( 5 tabs) + Thunderbird + Dolphin + Sys Mon and all the services = 430MB

Chemist

"512MB is just about enough to run Firefox *or* OO.o"

Nonsense

Shut up, Spock! How Battlestar Galactica beat Trek babble

Chemist

But

why does it zap your mind ? - it's just physics

Android kernel leaks like a colander

Chemist

"So why would anyone be surprised "

I'm not surprised you're anonymous !

Android phone sales up 1,309%

Chemist

"we want CHOICE "

Just like our desktops ??

Alien Earthlike worlds 'like grains of sand', say 'wobble' boffins

Chemist

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 )

Apple unloads patent suits on Motorola Androids

Chemist

"herding animals via GPS"

If there is a valid patent for "herding animals via GPS" then herding sheep falls under the category of obvious in the strict patent sense.

Microsoft holds Androids hostage in open source wars

Chemist

"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 3.1.1.4

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