* Posts by Nigel 11

2567 posts • joined 10 Jun 2009

Vandals break into congressman's office, install Linux on PCs

Nigel 11
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Black Helicopters

Who stands to gain?

Who stands to gain by mentioning that this act of vandalism involved use of a tool called Linux? (A detail that's about as relevant as someone's window being smashed using an Apple charger brick, rather than the more usual house-brick).

Is Microsoft a large campaign donor by any chance?

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Google Go language gets used: For file-scrambling trojan, though

Nigel 11
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Re: Great language name! Not confusing at all?

You'll very often find it referred to as Golang, possibly to make it searchable. Or use quotes: search "Go language" seems to hit on the right things.

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How hard is 3D printing?

Nigel 11
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Wax

It strikes me that one of the most interesting materials to print 3D things in, is wax. Can these printers do wax?

If you are wondering why: look up lost was casting. You surround the was with clay, heat it to boil and burn out the wax and to fire the clay, and finally cast metal into it. To start with it could revolutionize the jewellery trade. You could go from a 3D cad design to a finished item cast in silver or gold in a day. And computers can calculate (and 3D-print? ) fractal designs so easily. Just try carving a fractal from a block of wax by hand!

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'Programming on Windows 8 just like playing bingo' - Microsoft VP

Nigel 11
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Devil

Re: 'just like playing bingo' ...

I think you meant "a true gamble" not a true gaming platform ....

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Nigel 11
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@Cmdr3X Re: thx for asking about variadic templaces

If you still want to learn programming, start with the right language. These days I'd suggest Python. Anyway, definitely a scripting language (interpreted), so you can type bits of code at the computer and immediately see what they do. As a side-bonus, you won't need to pay a penny for a compiler or a developer environment (even if you are determined to stick with Windows).

If you get to the point where you are a competent programmer and are being frustrated by the slowness of code written in your script language of choice, you might then consider learning a compiled language. (But do first make sure someone hasn't already written what you need!)

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Climate sceptic? You're probably a 'Birther', don't vaccinate your kids

Nigel 11
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Happy

Count yourself lucky

Count yourself lucky if the nutters find harmless things to believe in, like UFOs or NASA faking the moon landings or WTC conspiracies.

Without them they might find other things to believe in, like fascism or Maoism or any number of other -isms that have led to a state perpetrating mass murder.. They wouldn't have pre-labelled themselves as nutters, either.

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Raspberry Pi patch adds warranty-safe overclocking

Nigel 11
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Why?

see how high you can go until you find a setting that renders the board unstable.

Overclockers have always puzzled me. The manufacturer knows exactly which are the critical pathways in the CPU. They can test and appropriately speed-grade their chips by exercising these pathways. Intel turbo-mode is supported, meaning that Intel has tested your CPU at the highest turbo speed they support. You'll get correct results, as long as you stay within the thermal envelope.

But if your CPU has not been manufacturer-tested at the speed you are clocking it., all bets are off. Which matters most - getting the right results, or getting wrong results faster?

It's not an entirely rhetorical question. If you are rendering frames for a movie or game, wrong results are either immediately obvious or of no significance. However, that's a special case. One bit wrong in the allocation bitmap of a filesystem, or in the compression or encryption of a datastream, and the eventual loss may be huge. Even in a render farm, overclocking has risks: it's the same overclocked CPU crunching the pixels, and adjusting the allocation bitmap of the disk on which the results are stored.

So the question: why overclock a Pi, when you can so easily buy a faster system?

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Governments block YouTube over that video

Nigel 11
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Re: During the meanwhile ...

"not eat pork as it is the greatest sin" - like what did the poor pigs do to deserve that!?!?

in the Middle East, in centuries past, pigs carried a parasite that can infect humans with dire consequences.

Declaring pork to be unclean was a very sensible public-health measure at the time. The reason why it was so was at that time unknown. The unfortunate thing about religion is that now the reason IS known, the true believers nevertheless adhere to a commandment that makes absolutely no sense if you are living in 21st-Century England.

In other words, "Don't think. Just do what you are told".

Almost all mainstream religion has this fundamental flaw. As do many well-known secular cults: communism, fascism, managerialism, and many lesser ones.

IBM got it's first commandment right: "Think!"

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Brains behind Kazaa and Morpheus unleash patent storm

Nigel 11
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Mushroom

Re: Disgusting

The prior art for that one is milennia old!

The ancients used to write with no spaces between their words. Then they started to insert dots. Finally they hit on the idea of using spaces.

As for computer prior art, awk and its split() function is a relatively recent example!

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Mobile phones still failing to kill people – Nordic scientists

Nigel 11
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Boffin

Hypersensitives

Have any of these people claiming to be hypersensitive to radio emissions been put through a double-blind test? Did any of them pass (i.e. prove that it's even possible for a human being to tell whether an alleged mobile phone in their proximity is or is not turned on, if it's sealed in an opaque plastic box that they can't touch or open, that's provided to them by a person who also doesn't know if the "phone" is on, off, or a root vegetable.

It's the same as with drugs. Some get better because they believe that inert tablets are useful medication (placebo effect), and some report unpleasant side effects even when the pills are inert dummies (which one might call drug hypersensitivity if it weren't a double-blind test).

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Ten USB 3.0 HDD enclosures

Nigel 11
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Joke

Re: Why blue LEDs?

Why never white LEDs?

I can guess: Apple has a patent on them.

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Forty Canadian birds BONKING against windows EVERY MINUTE

Nigel 11
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Strange

There must be something odd about those Canadian windows.

In all the years I've been looking at birds on a feeder table through a picture window, I can remember only a few bird bonks and only one fatality (a pigeon). They seem to be able to see the glass. A few do have to take emergency evasive action at the last moment - that this happens rarely suggests that they learn from experience.

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Microsofties to get Windows 8 Surface tabs

Nigel 11
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Joke

Re: this device will fall flat in the UK...

It's pretty unlikely to end up standing on its edge after a fall. Wonder how many falls before it fails.

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New guide: Bake your own Raspberry Pi Lego-crust cluster

Nigel 11
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Re: Great.. .but better ways to do the power...

A PC power supply will be VERY unhappy supplying many amps at 5V and none at 12V. It may refuse to work with that load, overheat and emit smoke, or simply waste a large fraction of the power going in. They're designed for use with modern PC hardware, with the lion's share of the power being consumed at 12V.

Just source a single-voltage power supply that delivers enough amps at 5V. There will be plenty of PSUs to choose from at RS or CPC. It may be cheaper to use multiple 5V 4A or 5A "bricks" than a single (say) 40A unit, and may also be easier to wire up.

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Swedish cops contain fermented herring menace

Nigel 11
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Re: Sounds even worse than durian fruit

I thought Durians were banned as cargo by every airline on the planet? Or has someone purchased a jet for the sole purpose of moving loads of Durian around the planet?

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Analysts: Shamoon oil biz malware flingers were 'amateurs'

Nigel 11
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Joke

Re: WTF?

I'd have thought it made them radical feminists of the "castrate them at birth" persuasion.

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GNOME hacker: Culture isn't holding desktop Linux back

Nigel 11
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Forget Joe Sixpack ... think businesses.

I'd say that the main reason people who know as little as possible about computers don't use Linux is far simpler than any of the above.

Linux can't run Microsoft Office (or some other MS-only package to which they are attached by advertising, brainwashing or addiction ). Yes, they could switch to LibreOffice with less trouble than switching from Word 2003 to Word 2007 ... but they won't unless someone tells them that they have to, because of inter-operability issues. (If I said peer pressure to conform, I'd not be too far off the mark).

The question we should be asking, is why are big businesses and governments almost all still wedded to Microsoft, when one might have thought they could save huge amounts of money by switching to Linux?

One answer is "support costs too high". A more likely one is "migration costs too high". Once again, Microsoft Office is the moat Linux would have to fight its way across.

I don't know the answer, but I'm certain that arguing the minutae of font design on a particular Linux desktop option isn't the least bit relevant.

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There is life after the death of Microsoft’s Windows 8 Start button

Nigel 11
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Re: Waste of my time

So, you think it would be a really smart move for the UK to decide overnight that everyone should be told to drive on the same side of the road as Europe?

Of course not. It would cause chaos and kill lots of people.

Well, Windows 8 has made the same mistake, except it won't kill so many people. (It will certainly kill some. Annoyed or stressed users having heart attacks. Emergency service operators or medics failing to react correctly or fast enough because they are struggling with the unfamiliar new interface. And so on)

Yes, I'm sure I could get used to it. I just don't see why I should waste my time on a completely pointless change.

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WD to parade flash-disk mutant for Wall St moneybags this week

Nigel 11
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Hybrid drive query

Something I've been wondering about hybrid drives: do they remain readable if/when the flash cache fails?

In my experience, most (not all) conventional disk drives fail gradually and the SMART statistics (especially reallocations) give you advance warning. In contrast flash devices go from working storage to utterly bricked "just like that". It would be nice to be told that if the flash part of a hybrid drive does turn into a brick, what's on the magnetic disk can still be retrieved.

Failing which it will be smarter for one's operating system to control a flash cache and a magnetic disk drive as separate devices. In fact maybe the drive manufacturers could package this option as one SATA device with two LUNs, or even make it a jumper-configurable mode?

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Scientists provide a measure of uncertainty

Nigel 11
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Mathematical crypto also has its problems

Crypto systems have a critical weakness: private keys have to be kept secret. If they fall into the wrong hands, the cryptography is broken.

There are also mathematical weaknesses. It is now known that not all keys are equal. Statistical techniques have been developed that make a subset of keys very much more crackable than others the same length. Of course, once such an attack is known, vulnerable keys can be rejected, but suppose there are other mathematical weaknesses that have not been made public?

Also, most modern crypto depends on the Riemann hypothesis being true. Few mathematicians think otherwise, but it has yet to be actually proved. By the way, if you ever discover a disproof, spam it far and wide and then go into hiding for a few months. It's the only way you'll remain alive and at liberty!

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Mars probably never wet enough for life, nuclear bomb crater indicates

Nigel 11
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Re: No life?

Venus is too close to the sun for terraforming (unless orbiting sunshades are possible). Venus suffers/ suffered a runaway greenhouse effect caused in the first instance by water vapour, which we couldn't do without.

Mars's problem is low gravity, meaning atmosphere (especially water vapour) tends to drift off into space. However, that's a slow problem taking geological time. It *might* be possible to terraform Mars by directing a lot of cometary ice at the planet to replace or supply the necessary water. Then pump loads of CFCs into the Martian atmosphere to create a super-greenhouse effect, to compensate for the weaker sunlight.

Of course that way there would never be an ozone layer to keep UV out, but Mars is further from the Sun so theUV will at least be weaker by proportion. We'd have to colonise the Oort clouds first, though, to get hold of the vast amounts of water-ice it would take.

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Nigel 11
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Unhappy

Re: Fossil Finds...

Either way, it would cast a whole new perspective on our place in the Uniwerse.

Unfortunately, not so (unless Martian biochemistry proves to be utterly un-earthlike). Extinction-level meteor impacts can eject bits of Mars into orbits that are later captured by Earth, and to a lesser extent (because it's more "uphill") vice versa. Microbes can survive incredible accelerations, and a long time in vacuum. Therefore, it's a near certainty that whichever planet first evolved microbial life would have spread its microbes to the other. So if we find familar RNA-based microbes on Mars, they probably originated here. That, or Earthlife originated on Mars.

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Fanboi beats 'e-trespassing' rap after using GPS to find stolen iPad

Nigel 11
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Citation hardly needed: do the statistics

Someone who was ten in 1945 would be 77 today. The majority of such people will still be living. The activities of the Gestapo in the occupied Nederlands are well-documented. And the legal structures of a country usually arise out of its history.

It is of course a hypothesis: as with most statements about society it's almost impossible to prove scientifically.

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Nigel 11
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Netherlands

This is probably because even today there are people in the Netherlands living with the memory of jackbooted thugs arriving at their front doors and dragging off their loved ones (parents, mostly, these days) to be "interrogated" and shot.

The Netherlands may have gone too far to the opposite extreme, but it's certainly the lesser error.

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Nigel 11
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Re: Odd system

Some branches of my extended family tree are extinct.

When the state of Germany was founded under Bismarck, my distant ancestors happily trotted off to register themselves as citizens. One of the things they volunteered was their religion: "Jewish".

The rest, as they say, is history. Never assume that government will remain even slightly benevolent for the duration of your lifetime, and for that of several generations of your descendants. In case you don't realize it, your DNA could be used to identify your children or even great-grandchildren, many years after your death.

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Boffins computerize giant cyborg cockroaches

Nigel 11
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Coffee/keyboard

SoC

System on Cockroach! I was drinking coffee when I read that!

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Torvalds bellows: 'The GNOME PEOPLE are in TOTAL DENIAL'

Nigel 11
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Re: A bit off topic but...

The problem is of course, that most users will just click yes without actually reading the question, so what we need is another question to check you really meant to click yes. The problem is of course, that most users.....

The answer is to generate an informative message and at the end, something like "To confirm that you have read and understand the above, please type the first letter of the fourth word on the sixth line, followed by the fifth letter of the second word on the seventh line" (ideally, with random nths).

That will at least jog the user out of auto-click mode. The rest is down to whether he's got a brain to engage. If he's just a slightly higher-level automaton than the computer, there's nothing can be done about it. (Ignorance is curable. Stupidity is terminal).

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Voyager's 35th birthday gift: One-way INTERSTELLAR ticket

Nigel 11
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You are just a simulation of a human brain in the aliens' computer. It monitors where you think you are looking and sends appropriate simulations of reality back to simulated optic nerves.

Same idea on a grander scale, and a bugger to disprove. Isn't Occam's Razon wonderful! Relax and watch ze blinkenlights.

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Nigel 11
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Re: 35 years old

Your radio is in a moist oxidising atmosphere. Why do you think that things we want to last for a long time are vacuum-packed?

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Nigel 11
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Re: Eternity

It will evaporate(*) well before eternity. It will probably have evaporated before it next encounters a solar system (unless they managed to aim it precisely at one of our nearest neighbours a mere handful of light-years away).

(*) most things have a vapour pressure greater than that of interstellar space. Also it's being bombarded by high-energy particles.

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'Immortal cancer' found in Australia

Nigel 11
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Unhappy

Re: It's somewhat sad...

There's a great difference between a species dying out due to a virulent disease and a species dying out because we killed it.

But we did kill this species, just less directly. We killed almost all of them. They bred back, but because the species had at one point been reduced to a small number of individuals, they all share a very restricted gene pool. Hence this cancer, which can infect all of them, and which may cause their extinction.

There may also be a wider lesson. Another species which came through a genetic choke point is our own. It's reckoned that at some point about 80,000 years ago, the entire population of homo sapiens was less than a thousand. We too are far more vulnerable to extinction by some new plague, than most other species.

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Nigel 11
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Boffin

Re: Reverse the polarity of the Neutron flow.

Unlocking our telomeres would be much more likely to increase the rate of cancers than giving us immortality.

More realistically, it might give most of us a healthy life extending to 100, maybe 120 years. How successfully depends on how many of the diseases and failings of old age are caused by the biological senescence mechanism, and now many by other causes such as accumulating cellular mutations.

Alzheimers is not a certainty. I remember interviews with Jeanne Calment (she lived to 122, despite smoking heavily all her life!) and Harry Patch (the last veteran of WW1). Both were of sound mind when their bodies quit on them. So are the majority of people who (mostly) die in their 70s, 80s and 90s from causes related directly or indirectly to cellular senescence.

Wrt cancer: as other causes of death become curable or treatable, its incidence increases. It's also more likely the older we are, because of accumulating cellular mutations. Personally I'd take an increased risk of eventually falling to cancer, than the near-inevitability of falling apart in my 80s or 90s when my body's self-repair mechanisms start to turn off.

Immortality is not even conceptually attractive. However, a few more decades of reasonably enjoyable life most certainly is.

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Wireless Power breakthrough: Iron Man can lose the chest reactor

Nigel 11
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Inductive coupling?

I've always wondered why medical implants can't be recharged by simple mains-frequency inductive coupling. An iron-cored coil connected to a rectifier inside the patient (sealed in appropriate non-metallic bio-compatible material). To recharge, strap a bigger mains-activated coil on the outside of the body.

Ancient technology, but it's how my electric toothbrush is recharged. Why haven't medical devices used it for decades?

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Why Java would still stink even if it weren't security swiss cheese

Nigel 11
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Re: Python?

However.... I must agree that the forced indentation is a REALLY poor design decision. I know why Guido did it - to force a common format on everyones code. But what it has resulted in is people accidentally deleting some whitespace (easy if some idiot has only used 1 or 2 spaces) moving an end of block line outside of the block it was in but leaving a program that still apparently runs but now has a potentially serious bug.

But it's just as easy to make mistakes with curly brackets or the dangling "else" in C or similar languages! And worse, you don't know where you should be looking for the bug. The curly brackets may not be where you expect them in your coding style. If it's an editor flub, they may not be where anyone expects them in any widely used coding style.

I didn't like Python indentation-as-syntax when I first met it. The dislike lasted for a few hours, acceptance lasted the next couple of days, and then it blossomed into love.

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The problem with wireless: all those effin' wires

Nigel 11
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A winner of a name?

I've just realized, if my proposed global low-voltage cabling ever comes about, the cables should of course be called LOVE cables. LOw Voltage Electrical. Beats IEC C13 (aka "kettle flex" -- inaccurately, kettles use C15)

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Nigel 11
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Longer USB cables = FAIL

The maximum length of a USB2 cable is 2 meters. Period. (You might find a longer one on sale, but it's out of spec and may cause data corruption or unreliability). You can reach 4 meters by employing two cables and a hub. Above that you need an expensive USB to Ethernet (well, RJ45-Cat5e-cabled something) to USB bridge.

WHY there is such a stupid maximum length, I have no idea. Anyone at Intel reading this? (I think it was Intel whio invented USB). Anyway, we're stuck with it.

As for power bricks, there's a desperate need for a single global standard low-voltage power source with a standard connector that everything can be expected to run off. Then, hotels, business premises and even homes could be constructed with it built into the walls, and in the meantime any adapter would power any standard-compliant thingy. How about 12V nominal (up to 15V allowed, for automotive use), current-limited to 3A (36W, enough to fire up a 3.5" disk drive). DC-DC power conversion is no big deal these days.

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Assange granted asylum by Ecuador after US refused to rule out charges

Nigel 11
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Good job Hague, Ecuador has now called your bluff. What are you gonna do now?

Nothing in the short term would be a good idea. Personally I'd quietly offer to do nothing for as long as they do nothing in support of the Argies w.r.t. the Falklands ... OK, assume they say no to that by word or deed.

Long-term, he could find another building that's superior to the current Ecuadorian embassy, and tell Ecuador that he requires them to move to the new embassy within (say) a year. During the transition both buildings would have the status of embassies, and all usual privileges will be maintained for diplomats and diplomatic bags. Removal costs would all be footed by the UK government.

Assange is not an Ecuadorian citizen, let alone a diplomat, so a year later we'd have him without setting a disastrous precedent for diplomats elsewhere. (There surely must be a precedent for an embassy being relocated at the request of the host nation, with reasonable notice? For example, if the building is blocking a major infrastructure development? )

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Nigel 11
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Re: Getting him out

The only thing which bothers me is that neither the UK nor the Swedish government has completely nixed his assertion that the rape charge is a subtext for passing him on to the USA.

I'd urge Sweden to state that after he is acquitted, or after he serves his sentence in Sweden if he's found guilty, then he'll be allowed unconditional free passage to anywhere in the world that will have him. If he won't voluntarily return to Sweden after that assurance, the conclusion is obvious, and Ecuador would be best advised to throw him out of their embassy into the hands of the UK police.

I've heard that such an assurance is already implicit under EU extradition law, but why not make it explicit? I'm no lawyer so I'm somewhat unconvinced by the former, but would be completely happy with an explicit assurance by the Swedish government. Anyway, why not make explicit what they know to be implied?

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Doctor Who Sonic Screwdriver Universal Remote Control review

Nigel 11
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Meh

I forsee a problem

We may think it's from the Dr. Who mythos, but what does it think?

I expect these things will be claiming assylum at wherever the embassy of Biroid life-forms may be. Which means as far as us humans are concerned, it'll be here today and inexplicably gone tomorrow.

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Scientists find safer way to store hydrogen

Nigel 11
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Re: Methane and Global warming

Better then to figure out how to keep the temperature up when the gradual cooling sets in.

Methinks that's a long-term problem, after dealing with the runaway thawing of the arctic and consequent temperature and sea-level rises. (The cooling after that is inevitable, once there's no longer any supply of short-lived methane into the atmosphere from thawing permafrost. The methane converts to CO2, and plants once again start trapping the CO2, and the ice once again starts to creep down from the pole, once again locking up the methane from decomposing vegetation as methane hydrates ... repeat many times, until continental drift does away with the Arctic ocean.)

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Nigel 11
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Boffin

Methane and Global warming

Methane is anout 15 times more potent as a greenhouse gas than CO2, true, but it has a short half-life in the atmosphere (about 10 years from memory). It gets broken down by UV and recombines with oxygen as CO2 and water. Incidentally water vapour is an even more potent greenhouse gas than methane, but the atmosphere is naturally pretty much saturated with the stuff. If it weren't for global warming caused by water vapour, the planet would mostly be too cold for life.

Anyway: methane does not accumulate long-term in the atmosphere, whereas CO2 (probably) does. Which is why the focus is on the CO2.

There IS a clear and present danger of a runaway warming event caused by the thawing of methane hydrates of natural orogin currently trapped in permafrost across the world's Northern tundras. If the permafrost thaws, lots of methane is released, causing increased global temperatures, causing more thawing and more methane. A positive feedback loop until all the arctic has thawed. The fossil record shows that this has happened several times in recent geological time, without human causation. A very sudden thaw, followed by a gradual cooling. To my mind, this is the key reason why we should be VERY bothered about human CO2 emissions.

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Nigel 11
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Re: Why Hydrogen instead of methane?

Actually Methane is already out there. Cars can be converted to run on CNG (compressed natural gas) as well as LPG (Liquid petroleum gas, better remembered as low pressure gas).

The problem is that to get enough range out of a reasonably sized tank, a very high pressure is needed. The potential for explosions if the tank is badly maintained is high (far higher than for a tank of gasoline). Also refilling is not nearly as simple as pumping a liquid, or plugging in an electric cable (and not as fast as the former, though faster than recharging a battery).

For these reasons the general public are not in general offered CNG vehicles. You'll find it used for running taxis and public transport in some cities. If oil runs out and gas (shale gas) does not, that might yet change.

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Nigel 11
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Re: RE= Aluminum Paint killed the Hindenburg

unfortunately the liquid medium is unstable itself when heated during normal vehicle operations

You mean, like a tank full of gasoline?

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Nigel 11
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Hindenburg

Well worth pointing out that the Hindenburg was actually a good demonstration of the relative safety of Hydrogen! The majority of its passengers survived the disaster. Those that didn't mostly jumped from too great a height or were crushed by falling structural components. It was the aluminium-paint skin that started the disaster, and the hydrogen burned harmlessly up into the sky, being so much lighter than air.

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Nigel 11
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Re: True Cost/Efficiency

...which means you need to invent a solar cell that's better than 15% efficient, which means -- you guessed it -- back to the drawing board!

Completely wrong. For solar electricity, the energy source is inexhaustible in human terms and has zero cost. It beomes a matter of economics: the cost of making solar cells and the cost of the real estate on which you put them. At present the real estate cost is close to zero (no-one much wants the vast tracts of near-lifeless desert that exist) but the cost of the solar cells is rather high compared to the cost of generating the same electricity from fossil fuels.

Raising the efficiency of the solar cells is one way to improve this. Making them much more cheaply is another. If we could make a plastic sheet that generated electricity as cheaply as we make polythene sheets, it would not need to be even 5% efficient to revolutionise the world.

(Nature did this a long time ago. It's called a plant. Conversion efficiency of solar energy to hydrocarbons rarely better than 1%, but a very low production cost in human terms because to a large extent, they grow themselves into useful products, and make their own seeds. If only they didn't need so much water to grow! )

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Nigel 11
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Re: "can soak up so much of the stuff ..."

i can't see how you can adsorb a material to a higher density than a bulk liquid.

By rearranging things chemically so that the density of hydrogen atoms loosely bound to some carrier compound is greater than the density of hydrogen molecules in liquid hydrogen. It's akin to the old party trick of pouring a pint of water into a pint glass already full of sawdust. It all goes in! (Water packs more tightly around just about anything, than the dynamicall changing open structures in liquid water).

The density of liquid hydrogen is an extraordinarily low 0.07 (water is 1.0) so there's a lot of scope for it to pack down into the interstices of open crystal structures. That's the problem with storing hydrogen at high pressure in metal tanks. It does pack down into the interstices in the metal crystals, and as this happens, the metal becomes progressively embrittled.

(Source for 0.07 http://en.wikipedia.org/wiki/Liquid_hydrogen corroborated elsewhere by Google. That's quite a lot less than 1/4 the density of petrol. More like 1/12 working from memory)

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What to do with 110,000 Magstar tapes and 11PB of data

Nigel 11
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WTF?

Re: So to recapitulate...

Who's the asshat that thought of this then ?

Got a better idea? If not, the choice is to punt the problem into the future without destroying any data, or to give up and hire some skips.

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Nigel 11
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Re: 11 Pb?

I did wonder what it all was. Geophysical survey data explains it. You could compress it heavily, but you'd probably end up throwing away the information that future interpretation exercises might need!

Nevertheless, I wonder if anyone investigated the possibility of lossless compression of geophysical datasets, on the fly between the old and new archives? (I don't mean of a single data stream, I mean by removing redundancy from outputs of multiple sensors and shots in a single seismic run).

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Optical Express 'ruined my life' gripe site lives on

Nigel 11
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Boffin

Re: I would love to have LASIK

NO! look up "common mode failure". Examples: incompetent surgeon /operator, incorrectly calibrated LASIK equipment, idiosyncratic (unusual, bad) reaction to the surgery in one particular patient (ie you). Any of these could cause BOTH your eyes to be knackered if you have the procedure performed on both eyes at once.

Same reason airlines NEVER service both engines on a twin-jet at the same time!

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Nigel 11
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Boffin

Re: I would love to have LASIK

The question should be whether your life is really seriously impaired without LASIK? If spectacles are able to correct one's vision defect, then LASIK is a risk being taken for little reason beyond convenience or vanity. If it goes wrong (which sometimes it does) one is irreversibly worse off, and spectacles then won't help.

The thought of someone risking both eyes at once is quite incredible. Have one done, and wait until one can judge the short-term results before risking the other one! Having one eye irreversibly screwed up is bad, being functionally blinded is far, far worse.

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