* Posts by Chemist

2677 publicly visible posts • joined 24 Mar 2010

Stuxnet worm can reinfect PCs even after disinfection

Chemist

"that selectively remove metals from soil"

Don't think so. There is an isotope effect on chemical processes but it is only really significant at large atomic weight ratio differences e.g hydrogen v. deuterium. Separating U235 from the rest is still going to be awkward.

Nutter repairmen scale 1,768ft TV mast

Chemist

"How fit must you have ....."

Just outside Zermatt is a 'test run' for candidates for climbing the Matterhorn. From memory it goes up very steeply through rough,loose terrain for ~~600m height or about the height of the mast. If you can reach the top in (I think) one hour you might have the stamina for the ~1100m up the Matterhorn from the Hornli hut.

Nuclear merchant ships could open up Arctic routes for real

Chemist

Re : Am I mistaken...

Forget weapons - the contents of the reactor would make a VERY nasty dirty bomb

Chemist

Oh, great

Just what we need - a mobile nuclear reactor that's capable of being hijacked

UN appoints alien liaison boffin

Chemist

""first contact" is likely to be via radio,"

Probably have a few hundred years at least to formulate a reply then.

Do the Webminimum

Chemist

@HolyMackerelBatman

Last install I did was SUSE 11.2 - it took 17 minutes and I didn't use a command line once !

2 CPUS 1 CUPP

Chemist

"What's You-Bunt-Toe?"

Superior however you spell it - Although I prefer SUSE

Second SMS Android Trojan targets smut-seeking Russians

Chemist

"if you want to insist on using Linux exclusively,"

I DO use Linux exclusively.

Chemist

"don't want android to become another untrustable OS like windows."

Don't install untrusted stuff then. - it's the same for any operating system

I run Linux exclusively but it doesn't mean I trust anything just because it's there. If I did a user account could get compromised and that might lead to worst consequences

ARM flexes muscles with fivefold performance boost

Chemist

@Tom 7

"And then ARM being bough up by MS as an attempt to stop linux."

Except all those other licensees might have other ideas.

Brits don't want in-flight calling

Chemist

Brits don't want in-flight calling

Turn the phone OFF then

Privacy watchdogs challenge laptop seizures at US borders

Chemist

Re : Yeah store it on the internet

If it's well encrypted it doesn't matter where you store it

Ubuntu 'Maverick Meerkat' erects own App Store

Chemist

"GIMP remains inferior to Photoshop, and Openoffice......."

In absolute terms that may well be true but in value for money ?

In any case most people will find they are more than enough for their purposes.

New 'iPhoD' can 'adjust the speed of light by turning a knob'

Chemist

Re : Ehh?

So what else are they?

Strictly quanta of any wavelength EM radiation AFAIA

General Motors bitchslaps Tesla with Range Anxiety™

Chemist

@ Keith T

Are you joking ?

30 amps * 220 volts is 6.6kW so in 3 mins. you'll get (at 100% efficiency) ~0.33kWHrs. That's not going to get you very far as from what others have said it's less than 1% of a Tesla's battery capacity

(BTW do American systems include 220V - thought it was all 120V )

Chemist

Re : Oh how we laugh #

I salute you Sir - not afraid to use reason or logic.

By the way the efficiencies of electrochemical processes fall rapidly with increased rate. This will result in HOT batteries. Even if only 10% is lost as heat then 80kW needs to be dissipated in 3 minutes

Ubuntu 10.10 released to beta

Chemist

Re : Still can't configure gome screen-saver though

You are joking ?

Diesels greener than electric cars, says Swiss gov report

Chemist

Re : Dop cars still use carburettors ?

Old ones do and Grease Monkey said "My advice is that should you stop at the top of the Stelvio pass to take a photo, do not switch off the engine of your aging Beetle"

Chemist

Re : Re: Rule of thumb

And now I've finished breakfast ...

The very conservative estimate for the energy to start an engine I gave above is equivalent to 0.5 grammes of diesel (~45MJ/kg). Even allowing for inefficiencies that's still a tiny amount.

My guess is any starting problems encountered on the passes where the result of a hot petrol engine evaporating the petrol in the carburettor at the low atm, pressure

Chemist
Happy

Re: Rule of thumb

"The bigger the engine and the....." - the MORE fuel it uses at IDLE . Many car manufacturers offer automatic stop/start in Europe - they will have researched it.

Your evidence is .....? No, thought not

Back of spreadsheet calculation using very rough figures.

Starting amps 1000, time 2 secs = ~7watt.hrs - that's really not very much at all. On the other hand I can watch the fuel drop at idleon the trip computer.

And BTW, I've a holiday home in Switzerland at 1800m (5800ft) and the car ( VW turbo diesel ) starts fine even at -15C.

Chemist

Re : adding more and more H2O - water vapor to the atmosphere

Take one large continent, drench in heavy rain, allow to dry in wind and sun, repeat for thousands of years.

That's a lot of water vapour added to the atmosphere esp. if the amount the winds drag from the ocean every day is included

Chemist

Re : they every considered how much fuel is used in recharging...

Far less than leaving your engine running.

The rule-of-thumb is turn off if the wait will be >10secs.

The Large Hadron Collider's mega-pic churn

Chemist

Re : Wake up →

Displaying your ignorance on The Reg - even if driven by 45 years - . is not a pretty sight. A billion used to mean a million million in the UK but was replaced by 1E9 years ago (~1970). Quite a lot of people still don't believe this and indeed it has been the subject of debate on The Reg.

Boffins baffled by mysterious Martian crater

Chemist

Re : That's quite a large spaceship

Depends on how big the aliens are !

I, for one, welcome our Brodbingagian ? Brobdingnagian ??( Oh bugger - big-endian) overlords

Apple patches 13 bugs in OS X

Chemist

Re : Allways have that argument without merit

I can see your point however the nightly backups I use that are driven by root processes and protected by root privileges are what allows me to sleep more easily with regard to my more important data.

Chemist
Linux

"folk who have absolutely no protection in place "

Protection against what exactly ?

Trojan-ridden warning system implicated in Spanair crash

Chemist

What !

Just reading this it looks as though the safety of the plane depended on a central computer. Surely a plane has a log book that pilots should look at. I'm all in favour of IT but whatever system is used needs to be adhered to

Boffins baffled by 'magnetar': Ought to be black hole, but isn't

Chemist

Re : How does a neutron star have a magnetic field

As far as I'm aware a neutron has a magnetic moment, so although overall electrically neutral the basic constituents of the neutron (quarks/gluons ) are able to display their individual properties to some extent.

People have no bloody idea about saving energy

Chemist

"use 120v, not our 230"

"So what difference does that make to cutting bills by those methods over here?"

None at all !

Watts=Amps*Volts So lower volts = higher amps.

** Slightly higher waste in the appliance cables in USA

Short passwords 'hopelessly inadequate', say boffins

Chemist

@Jerren

Yes. My fileserver is in a case I found in a skip. This has welded lugs and a metal bar to take a padlock. so you'd need a hacksaw or crowbar. ( The dual core Atom ITX board and dinky power supply and disks occupy about a quarter of it.)

Security not an issue with this anyway due to no easy access.

Chemist

Re : No need

Not fast though - esp. with a locked case like I use - serious lock that is.

Wouldn't help with a Linux password anyway. But as others have already said if you have the physical machine you have the contents unless they are also seriously encrypted.

Chemist

"when presented with an actual computer to reboot it into a CD or USB..."

Even with booting disabled from CD/USB/SD and the BIOS locked ?

Chemist

Re : Longer time between password entries

In fact you couldn't brute force it in a very long time, on average, even if you could try every MICROSECOND. I estimate ~50 million years to the half-way point.

Virgin Media to warn malware-infected customers

Chemist

Re : lot of less computer literate users (such as older people, i.e. over 30)

I'm not surprised you're ANONYMOUS

Cheeky s?d !

Malware gang steal over £700K from one British bank

Chemist

"I have never lost a penny or control of my machine."

YET!

Chemist
Linux

Re : Security

Apart from the obvious - long & complex passwords e.g zagy166Fts544ftbO4AQ31 ( Yes I don't write them down and yes I have a way to generate them on the fly from easy-to-remember passphrases)

Anyone care to guess the passphrase ( hint : it's easier that way round)

But esp. change to another non-admin account that's used just for banking ( hell have as many accounts as accounts)

Oh !, don't use Windows

Chemist

Re : I've seen quite a bit of this →

People use WINDOWS for internet banking ????

Chemist

Re : Since when was £800 in your account "sub

Too may people I fear only have a substantial amount after being paid for a microsecond and then their overdraft gets deducted !

Unpatched kernel-level vuln affects all Windows versions

Chemist
Linux

Re : Non-admin is NOT security →

Backups protect against files being deleted

Switching from one non-admin account used for general use to another reserved for JUST banking also increases security.

Chemist

Re : 3 things (3)

Most Linux distros update the entire installed software base as often as you like ( check once a day or once a week) The updates can be automatic or user authorized ( root password needed on most). Because only kernel updates need reboots in most cases this can all happen without the user being aware until for example a new version of Firefox is started and announces the fact.

Moon actually dryer than dem dry bones, say boffins

Chemist

Re : Am I Stoopid?

Thing about hydrogen in water is that it can rapidly equilibrate whereas hydrogen in say methane stays attached to the same carbon for a much longer time.

ISS cooling pump refuses to come quietly

Chemist

Re : Design

Probably because no-one wants a leaking ammonia pump inside

Chemist

Bladders of steel !

That is all

Microsoft to set record with next Patch Tuesday

Chemist

Re : Which OS would you suggest?

What ?

I've used Linux ( 6 machines currently) since ~1996 and NEVER had to reboot except for kernel updates. Indeed several of my machines are set to update automatically including my ultra low power fileserver which has been up for ~75 days since the last kernel update.

Currently OpenSUSE 11.2 or 11.0

Suggest you read

http://it.toolbox.com/blogs/locutus/why-linux-can-be-updated-without-rebooting-12826

Cracking software retrieves iPhone 4 passwords

Chemist

Re : agreed

Not an expert on cryptography but this suggests to me that you were trying 2E68 passwords a second ( or were VERY lucky)

Want to use WD diagnostics? Buy Windows

Chemist
Linux

Re : use windows instead of linux

DEAD4EVER - at least you're inconsistent !

"microsoft yet again shows it cant get nothing right constant bugs and flaws all over either in the operating system or browser jeese"

From one of your earlier posts. Do you remember ?

Murdoch predicts iPads all round

Chemist

Re : young people. reeeally?

What the hell has it got to do with age ?

Rubbish is rubbish

Microsoft rushes out emergency fix for critical Windows bug

Chemist
Thumb Down

Re RE: All Penguin Fanbois

As I've previously posted

http://www.kb.cert.org/vuls/id/940193

"Microsoft Windows fails to safely obtain icons for shortcut files. When Windows displays Control Panel items, it will initialize each object for the purpose of providing *dynamic icon functionality*. This means that a Control Panel applet will execute code when the icon is displayed in Windows. Through use of a shortcut file, an attacker can specify a malicious DLL that is to be *processed within the context of the Windows Control Panel*, which will result in arbitrary code execution."

And no - as far as I'm aware there's no possibility that Linux desktop icons are susceptible to this sort of nonsense.

Sophos downplays Android malware threat

Chemist
Linux

Re : "tries to change the registry"

What's the 'registry' ?

:-)