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* Posts by Chemist

1875 posts • joined 24 Mar 2010

US killer spy drone controls switch to Linux

Chemist
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Agree !

I've got 6 Linux installations and have installed about 5 more.

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Raspberry Pi Linux micro machine enters mass production

Chemist
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Why does it not have an enclosure ?

Back in the early 80's I assembled a UK101 single board 6502 system. That was used in the cardboard box the board came in until I could afford a case

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Titsup EMC VNX kit unleashes 5 days of chaos in Sweden

Chemist
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Reminds me of a song

I've looked at clouds from both sides now,

From up and down, and still somehow

It's cloud illusions I recall.

I really don't know clouds at all.

Joni Mitchell

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Oz skeptic offers prize if Rossi’s E-cat works

Chemist
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"LENR Primer "

Are we supposed to take any of this cr*p as evidence ?

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Hubble shows images from record-breaking 13.1 billion light-years

Chemist
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Re: "If the universe were really formed from a single explosion"

It's thought that quantum fluctuations when the universe was tiny just after the 'Big Bang' were 'frozen' by the gigantic inflationary process and give rise to the small scale heterogenicity seen On the large scale the universe is very homogenous or symmetric. It's reconciling these two observations that suggested the extremely small nature of the start point and inflation theory
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Tesla 300-mile e-car UK debut set for 2013

Chemist
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Well....

If it's like the electric beetle (85kW electric motor and 28.3kWh lithium-ion battery pack.) if you could manage to drive it flat out it would last ~20mins.

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Black hole radiation could provide insight into quantum gravity

Chemist
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"Can someone please refute this Hawking tosh without further delay??"

What you have just said has nothing whatsoever to do with Hawkings !!!!!

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Boffins demo time-warp cloaking device

Chemist
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Re: Re re: holidays on the moon

I know what you mean. In fact our holiday home is 1800m above sea-level and nowhere near any sea.

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Chemist
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"holidays on the moon"

The moon's overrated. OK the golf is easy but the brochures all go on about the seas and as far as I can see when you get to the beach the tide's always way out .

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UNSW researcher creates four-atom silicon wires

Chemist
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Ratio of phosphorous to silicon

I can't see how the doping is effective if only 4 silicon atoms are involved - I thought dopants replaced atoms in a matrix - the text and cartoon make it looks like the silicon is smothered in phosphorous

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Microsoft celebrates the death of IE6

Chemist
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"I accidentally middle click it sends the entire bloody contents"

Settings-Preferences-Advanced-Shortcuts-MouseSetup-MiddleClickOptions & change to something else such as start panning

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Year of the Penguin - el Reg's 2011 Linux-land roundup

Chemist
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Well AC

in that case a lot of people are working hard to produce an excellent set of distros.

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Chemist
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"many devices out there are not advertised to work flawlessly under GNU/Linux"

I find it just as irritating to be told by a manufacturer that some device 'only' works with Windows 'X' or maybe Apple and to find that actually it works perfectly well or better with Linux.

Recent examples include a USB 3G dongle, a firewire video camera and a USB/serial converter

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Chemist
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"name me another distro that is relevant on the desktop"

OpenSuse !!

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Chemist
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"the Linux share of the desktop market... less than other"

This might be true but EVERY one of those users have chosen to move to Linux.

In a world where essentially all desktop computers are sold with Windows or Apple OS pre-installed and where most people, in any case, don't care I'd count the desktop usage of Linux as a major success.

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Chemist
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"ecause these systems insist that you enjoy doing the computer"

Absolute nonsense !

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Chemist
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Well I kind of sympathise

but I have 6 machines running OpenSuse 11.4, a netbook, a laptop, 2 workstations, a fileserver and a desktop in our holiday home.

I don't have a problem with KDE although like you I'm quite happy with more 'primitve' managers

I don't have a problem with sleep mode

I have two printers - a Samsung laser and and Epson scanner/copier/inkjet which both work perfectly and network nicely from the fileserver.

I do agree about GIMP but I often process RAW photos with showFoto

I don't use Windows at all and expect to do everything I want in Linux - these days I find this quite easy.

Incidently I'm thinking of building a compute server to offload a lot of intensive scientific calculations & modeling and also for the transcoding/rendering of 1080/50p video

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That Brit-built £22 computer: Yours for just £1,900 or more

Chemist
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"They cost a bit more than £20"

@£50 from memory, would have been much more complex to produce and had loads of TTL logic on the board. I've still got one somewhere - the SC/MP machine code was a sod to write!

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US deploys 1.8 gigapixel helicopter surveillance drones to Afghanistan

Chemist
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Re:30000 feet seems rather high

The world record seems to be ~12500m or ~40000ft.

Here in Switzerland Air Zermatt helicopters routinely haul loads of concrete etc. to ~3500m + (~11500ft)

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Microsoft mum on leaked Phone OS plans

Chemist
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Re:Thanks for signing up just to say that.

Amazing he just happened to be passing really !

Nicely spotted.

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Reg hack cops a licking from the bosun's cat

Chemist
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Re : @I. Aproveofitspendingonspecificprojects → #

You are both sort of correct.

Winter solstice was indeed 22 nd Dec when the day length was shortest.

However sunset and sunrise move in phase but with a lead/lag so sunset here is getting later and has been since ~Dec 14th but sunrise is still around its latest and it'll be early January before it becomes earlier.

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Apple land-grabs fuel cells for mobiles

Chemist
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Want to buy a big one now ?

http://www.efoy.com/en/fuel-cells-products.html

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Chemist
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Re: "I am not old enough to have watched the first man set boot on the moon."

I am, and yes they had fuel cells for that.

As for the patent - this is shabby in the extreme. Many USA drug patents have had long lists of compounds which were only synthesised on paper but generally not reputable companies.

Even if I'd not seen examples of other mobile devices powered by fuel cells such as laptops ( and 12v supplies for motorhomes plus the Apollo capsule example this would be obvious in the patent sense anyway.

If Apple care to patent a specific design with some demonstrable advantage then that is patentable. But to just claim fuel cell power for mobile devices..........

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Software bug fingered as cause of Aussie A330 plunge

Chemist
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"There's a vague possibility of dark-matter particles......"

It could have just been a proton with a very-close-to-light velocity.

Even in the LHC the protons have ~1 micro J energy. They wouldn't have to go much faster to reach 50 J. They would, of course, have had to have been accelerated by a mighty powerful mechanism but the universe is likely to have quite a few of those.

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Nissan Leaf battery powered electric car

Chemist
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Re : Overhead power

Given that vehicles heights vary up to and beyond 4m a car would have to have enormous mechanism to reach the wires which would probably have to be 5m+ above the road.

As mentioned above overtaking would be impossible with multi-lane roads thus reduced to multiple single tracks moving at the speed of the slowest vehicle.

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Chemist
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But the battery is 24kWh...

So either the range is conservative or the something is wrong

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Chemist
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"What's the range like if its not flat?"

I can't answer that except with a diesel example

My 2.0L Touran averages about 55mpg but climbing the 27km from Visp in the Rhone valley to Saas-Fee ( diff in altitude ~1200m )it does ~28mpg. Coming back down it's more like 120mpg. Now, of course, you can't just average the mpg but I calculate that it's about 45mpg overall.

With regenerative braking an electric car might well get quite a lot closer to it's flat value

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Chemist
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"I reckon it won't be more than a quid or two."

It's got a 24KWhr battery so if it was flat it would be ~~ £3 for a full charge unless it's done off-peak

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CERN: 'New physics starts now'

Chemist
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"given the symmetry requirements."

I take your point,of course, but I don't see the symmetry if only one has "dangly bits"

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Higgs boson hunters have god particle in their sights

Chemist
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"No, it means you have made the error of reducing the sample space early"

You have made the error of not noticing it was a JOKE !

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Chemist
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"They really ought to include PowerPoint training"

They really ought to discourage PowerPoint usage in science degree courses.

Fixed it for you !

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Chemist
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Joke

The slide mentions the "Look-Elswhere-Effect"

Is that a cousin of the "Somebody-Else's-Problem" field ?

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Greenland 'lurched upward' in 2010 as 100bn tons of ice melted

Chemist
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"No matter how intelligent a person"

I agree entirely with that.

I worked with an extremely intelligent chemist who could think & rationalize well outside his area of expertize but he thought computers were binary - it never crossed his mind that you could parallel the binary logic and make 8-bit,32-bit etc,. systems.He assumed it was ALL serial.

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Chemist
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"Goes to show just how heavy that ice was"

I believe that GPS based altimeter readings show the SW of England rising and falling each tide by a measurable amount due to the continental crust being pushed down by the increased weight of the sea.

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Antarctic ice formed at CO2 levels much higher than today's

Chemist
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Re : It just doesn't seem to ring true that the climate system is so sensitive....

Why ?

CO2 absorbs outbound infra-red radiation thus heating the atmosphere more than if it were not there. It's totally irrelevant whether this occurs at .003% or 1% - it depends on the gas. In the case of CO2 0.003% is significant.

However HEAT != temperature. Different materials have different specific heats and worse than that ice/water has a large energy involved in it's phase transition ( ice at 0C + lots of heat > water at 0C )

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Chemist
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"CO2 levels != global temperature."

As I've pointed out before rising CO2 levels should cause retention of more HEAT - simple physics

but the relationship between heat and temperature on a planetary scale is likely complex - a very simple example is that you can put lots of heat into ice at 0C and it will stay at 0C until all the ice has melted.

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Printed-out dissolving bones, teeth work well in rats

Chemist
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"so much bone damage that it can usually only be done once"

Whilst I agree that it's difficult I do know of 2 people that have had 3 hip replacements. Takes quite a bit of doing and can involve bone-grafts

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Chemist
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"or stops the growth"

Good question. It is controlled in normal bone repair but quite how ...

Even more astonishingly normal bone is constantly remodelled by osteoclast cells that attach to the bone, dissolve away the mineral part, enzymatically degrade the protein matrix and then the 'hole' is refilled with fresh protein by osteoblast cells . The protein matrix acts as a scaffold for calcium ions in the blood to deposit and remineralize the bone.

The process may stop naturally as all the protein is covered calcium but I'm not sure about that.

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NASA confirms first Earth candidate in habitable zone

Chemist
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Re : At warp5 it will take 4.8 years to get there

Pity it's just a fictional means of travel !

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Lovefilm dumps Flash, BLINDS Linux fans with Silverlight

Chemist
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I know it not the same ..

but UK Parliament is also available as wmv format which can be used by Linux browser plug-ins

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Chemist
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"Linux isn't an entertainment OS"

Strange - it seems to be from here.

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Chemist
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"If you care about democracy"

Just harangued http://www.parliamentlive.tv

Ta

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Strap-on thruster daredevil shows off Swiss peak formation

Chemist
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"You'd think he'd get a sponsor."

"Watch" that space

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Christmas gamma burst stupendo-explosion DEATHMATCH

Chemist
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I think you missed ...

"giant mutant" before space goat

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Chinese state research unit pays $1,000 for USB stick

Chemist
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$1,000 for a 128MB memory stick

Not for the MoD I'm sure

"The price is about nine times what one might expect" - I'd expect not to be able to buy such a small one anymore

Do you mean 128GB ?

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NASA wants space washing machine for ISS, Mars bases

Chemist
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"with the clothesline outside"

Just use a rotary drier.

( When it's not being used it could make the craft look more like a 'real' spaceship which everyone knows bristles with that kind of antenna)

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HP douses firebomb printer hack threat

Chemist
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Halt and Catch Fire

I think that was Motorola 6800 or 6809 CPUs - I can't remember

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Chemist
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However..

this is a laserjet issue I understand

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Chemist
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"a component used to dry ink"

That'd be the fuser used to melt toner onto the media

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The BBC Micro turns 30

Chemist
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Re : Re: Ah !

I've still got a chart of the (gigantic) number of op-codes on my study wall. Spent a long time writing 6809 assembler including a floppy disk driver & formatter for my home-brew Forth system

Simpler days !

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