Slashdot Mirror


User: nukenerd

nukenerd's activity in the archive.

Stories
0
Comments
2,223
First seen
Last seen
Profile
(view on slashdot.org)

Comments · 2,223

  1. I would further argue that two different bank accounts is overkill.

    Why? What is your argument? I have several UK bank accounts in order to keep under the 75k guarantee limit - not cheque accounts for ready money but long term investment bonds.

    What you need .. is three different credit cards from completely different suppliers. That is I have one Visa card from one bank and a separate Mastercard from another bank ....

    A bit off-topic (unless it is different where you are), as in the UK at least a credit card is nothing to do with a bank account (although a bank may "front" it). I could get a credit card from my old uni for example. There are bankers in the background of course, but it is not your bank.

    Anyway, you have three credit cards? I have lost count of mine, at least twelve - my card holder is bulging with them and Debit cards, but I only carry two or three around with me. Now and then I get some offer like 50 GBP credit to join up so I go for it, buy 50 worth of petrol, and never use it again. I have had crates of wine too. Or I get a 20% discount buying some clothes in a department store if I sign up to their card on the spot.

  2. How the mighty have fallen !

  3. Re:Yeah, not gonna happen on The Race To Create a Hyperloop Heats Up (wsj.com) · · Score: 2

    "One thousand(sic) of atmospheric pressure" is not "pretty much as good as a "vacuum". Hard vacuums operate at around a trillionth of atmospheric pressure. At a thousandth of atmospheric pressure, even if you weren't in a tube you'd face relevant wind resistance at those sorts of speeds.

    My original and subsequent comments have not been about the propulsion, suspension or air resistance; they have been about the cost and challenge of building the tube. No, I have not read the concept design document (we are not the design committee here), but I have got the point that it is in a tube kept at a near vacuum.

    From the structural point of view it does not matter whether the internal absolute pressure (I'm trying hard to avoid the word "vacuum" as it seems to give issues) is a millibar, microbar, 10 millibars, 100 millibars or even a perfect vacuum - the structural design of that tube will be the same.

    No it will not be as simple or cheap as an oil pipeline.

    Oil pipelines have internal pressure (ie above atmospheric) which makes them structurally simpler because the pipe walls are in tension - which most structural material is very efficient at holding. OTOH, the Hyperloop tube walls will be in compression so there is the additional failure mode of wall buckling to consider - unstable implosion of the pipe in other words. With a tube 4m diameter (I got that from Wikipedia too) this is likely to be the dominant structural consideration. To avoid implosion buckling, steel walls will need to be either uneconomically thick, or will need to be copiously re-inforced with circumferential flanges and longitudinal ribs - unlike oil pipelines. One solution would be to make the tube of concrete which is far cheaper than steel, so the walls could be thick and hence more stable against implosion buckling - but then there would be far more self-weight to consider, negating the "advantage" of light pods/capsules/cars/whatever-they-are-called.

    A further difference from oil pipelines is that the latter can make relatively abrupt changes of direction. Eg, to cross a small valley, the oil pipes can simply dive down into it and rise up the far side, on relatively low and normally-spaced pedestals all the way. The Hyperloop could not do this - it would need a high viaduct like any conventional railway - in fact it would be far fussier than a conventional railway to keep the lateral and vertical accelerations within passenger tolerance at its high speed. Maybe the landscape is featureless where the Hyperloop is going (I don't know); otherwise some very serious civil engineering is going to be required on its route.

  4. Re:A hidden iframe redirects to the ransomware ... on Scammy Tech Support Sites Now Serving Up Ransomware (csoonline.com) · · Score: 1

    You conveniently omitted the fact that Linux users are not terribly likely to run random binaries downloaded from questionable websites.

    In fact I have. A very polite and helpful Indian gentleman phoned me recently and warned me that I had a virus - and kindly offered to remove it. I followed his instructions to the letter, including downloading something called "Team Viewer". I watched with interest as he then opened a command line session and did things I did not understand. I realised why software companies are out-sourcing to India as these guys are obviousy very clever with computers.

    Afterwards I deleted that virtual machine image, which was for sandpit use anyway, and restored an earlier snapshot.

  5. Re:A hidden iframe redirects to the ransomware ... on Scammy Tech Support Sites Now Serving Up Ransomware (csoonline.com) · · Score: 1

    Why does it matter? There really isn't any reason why the OS is relevant here. [blah blah blah etc]

    Calm down. A "Nuclear exploit kit" was mentioned. The GP asked what platform it ran on. Now can we have an answer?

    There's ransomware that runs on Linux.

    All the more reason to answer the question.

  6. Re:Yeah, not gonna happen on The Race To Create a Hyperloop Heats Up (wsj.com) · · Score: 1
    I was going by Wikipedia, and just took another look.. Perhaps Wikipedia has got it wrong (if so, perhaps you will edit it as you are obviously up on the subject), but :-

    [Wikipedia] The Hyperloop ... operates at approximately one millibar (100 Pa) of pressure. .......is proposed to operate by sending specially designed "capsules" or "pods" through a continuous steel tube maintained at a partial vacuum.

    No-one has ever created a perfect vacuum*, so the word "vacuum" tends to mean something close to it. One thousand of atmospheric pressure is pretty good going as a "vacuum" in for a mega-structure 100's of miles long. I work in heavy engineering - we would call that a "vacuum" and and would be quite pleased to maintain one as low as that in a vessel much smaller.

    But you are right to emphasise the "vacuum" being partial here as some air is essential to the air film aspect.

    Nevertheless, my point still stands that this is a staggeringly large "vacuum" vessel from an engineering design point of view (the point of view I am seeing from) which will be staggeringly expensive to build, whatever Elton Musk and his followers might believe.

    *Nearest thing was behind a parasol dragged behind a space vessel in very high orbit, and even that was not perfect.

  7. Re:Yeah, not gonna happen on The Race To Create a Hyperloop Heats Up (wsj.com) · · Score: 1

    Yes, building a track/road/ski-run/railway/sliding-surface (I'll give you the honour of chosing the terminology) in a vacuum tube sounds much cheaper and easier than building in the open air.

  8. Re:Seattle Tacoma would be ideal place for this on The Race To Create a Hyperloop Heats Up (wsj.com) · · Score: 1

    The GP was talking about instant acceleration (meaning in this context going instantly from 0 to 760mph). I think that merely liquifying is being optimistic: they'd probably be vapourised.

    Nevertheless, Strapp showed that we should be OK with 46g (let's leave the last 0.2, as a safety margin) - as long as we ae Strapped in.

  9. Re: To demonstrate the technology, transport cargo on The Race To Create a Hyperloop Heats Up (wsj.com) · · Score: 1

    That really is a big part of it. By splitting up the passengers into many smaller, frequently launched capsules rather than fewer numbers of large, heavy, proportionally increquent vehicles, they greatly reduce the peak loadings on the track.

    With microprocessor control, you could do that with conventional rail, which currently is still generally based on electro-mechanical line-side signalling systems.

    In fact there have beeen moves in the past to "break" trains into smaller faster units, such as the Flying Hamburger https://en.wikipedia.org/wiki/... and the UK's GWR railcars https://en.wikipedia.org/wiki/... - for their time, fast and light rail vehicles. However, like the Hyperloop they were confined (in their original roles) to the upper end of the market. To move people in mass, nothing beats heavy rail.

  10. Re:other enormous challenges not considered. on The Race To Create a Hyperloop Heats Up (wsj.com) · · Score: 1

    1. the majority of americans outside a handful of cities still consider public transportation to be a mark of poverty and avoid it at all costs.

    Aren't airlines public transport? I thought Americans loved them.

  11. Re:.. pressurized to minimize the G forces effects on The Race To Create a Hyperloop Heats Up (wsj.com) · · Score: 1

    The author doesn't know what G-forces are, that's all.

    This is the root of problem with schemes like this. They are hyped up by people who don't have a technical clue, and decided upon by politicians ditto.

  12. Re:It's their money... on 'No Such Thing As a Free Gift' Casts a Critical Eye At Gates Foundation (theintercept.com) · · Score: 1

    Gates [and other billionaires got their wealth because they] owned something that they made, and the wealth they have is due to the value of what they owned.

    But DOS and Windows were not worth what we paid. We paid Microsoft because we were forced to. I have bought PC's with Windows installed, and some of my money went to MS, even though it was of no value to me whatsoever - being that I was going to install OS/2 (at the time) or Linux. Even people who did want Windows were being massively overcharged because of MS's monopoly - MS had thottled its rivals until recently.

    And there is no way to prevent creating value outside of a state-controlled economy like communism.

    But the PC scene until relatively recently was exactly like a state-controlled economy - with Microsoft in the position of the state, preventing rivals from entering the market.

  13. Re:It's a Criminal Organisation on 'No Such Thing As a Free Gift' Casts a Critical Eye At Gates Foundation (theintercept.com) · · Score: 2

    Gates foundation has saved millions of lives

    You should keep reminding yourself that Gates obtained vast amounts of that money crookedly - I would say the vast majority of it. He and his company found themselves in a position of being able to exploit a monolpoly, and continue with dirty tricks to the preent day.

    So his wealth did not materialise from thin air (or in a differnt analogy, got dug up from hiding in the ground like oil or coal). Most of his wealth came by illicit transfer from other people. How do you know that those other people would not have made better use of their money? I have given money to charities, but they have been charities of my choosing, not Gates'. By your logic, it would be fine if someone robbed banks as long as they dropped some in the charity box on the way out the door.

  14. Re:It's a Criminal Organisation on 'No Such Thing As a Free Gift' Casts a Critical Eye At Gates Foundation (theintercept.com) · · Score: 1

    The last I looked sunshine Bill Gates became the richest man in the world again

    So? If he wasn't giving money away, he would be even richer.

    I don't think any of you really grasp how staggeringly wealthy he is in any case. It really does not matter to Gates whether he gives billions to charity or not, gets tax deductions or not, invests it or not.

    For example he has a salary (in 2014) from Microsoft of $32,000 per day, more than many people in developed nations earn in a year. But that is negligible compared with other incomes. From 2013-2014 his investments increased by $15 billion - about $40 million per day, more than the income of some nations. And all on top of his existing wealth.

    These amounts are very difficult to imagine. Even if he received no more income for the rest of his life (say 20 years) he could for example buy a new car every 2 minutes (but have no time to drive them).

    It is impossible for him to "enjoy" all his wealth directly. Tax breaks, investment income, giving it away - they all mean nothing to him and do not affect his way of life in the slightest, unless he gave away all but a tiny fraction.

  15. Re:Ministry of JUSTIVE prevents access to INTERNET on UK Prisons To Crack Down On Inmate Internet and Mobile Phone Use (thestack.com) · · Score: 1

    Britain's ministry of justice is second only to the US department of justice in doing ........ ensuring that people in the system have no access to reality, life, the Internet, and the ability to be part of even an online society, research their case, case law, or learn. ....

    How nice. I'm sure they would only ever use the internet to learn about flower arranging and xylophone playing. It's not like they'd use it to continue managing their illegal operations and their gang from the inside, or threatening the people who helped put them in there - is it?

  16. Re:One can dream on FTC Amends Telemarketing Rule To Ban Payment Methods Used By Scammers · · Score: 1

    And why should I have to pay for someone else's "free speech"? My only phone is a cell phone, with a plan that has limited minutes per month. The minutes that I paid for should not be wasted by telemarketers! Furthermore, I paid for my phone and my minutes, so ONLY I should get to decide who can call me!!!!

    Your problem is the lunatic USA way of charging some of the call to the receiver (as I understand it). In the UK (and Europe/Rest-of-the-World) the caller pays the whole fee.

  17. Re:What changes? on FTC Amends Telemarketing Rule To Ban Payment Methods Used By Scammers · · Score: 1

    "Rob", sitting in a call center on some subcontinent somewhere ... is making spoofed-CID calls to you claiming to be a MS representative that has been informed you're computer has a serious problem, and for a quick $20, they can fix it right up for you.

    You are getting the wrong kind of scammer. My scammers offer to fix my PC for free.

    None of these scammers gives a rats ass about U.S. laws and regulations. They don't apply to them.

    But by asking for payment in one of these illegal-in-the-USA ways, it reveals to anyone who knows that law that they are a crook and hence places another hurdle in their path to a successful scam. No, it won't work 100% of the time, but no law does.

    Personally I would not need to get that far into the phone call to realise it, and nor would you. Especially (like last week) they say my "Windows" has got a virus, when I'm running Linux. [Actally I booted XP in VirtualBox and led them on for 35 minutes]

  18. Re:Thirty Years of Windows. on Happy 30th Birthday, Windows! · · Score: 2

    Linux runs, and is developed, on almost any platform, not just "last year's Windows PC". It was originally developed on Minix, a version of Unix. So what's your point?

    Microsoft definitely wouldn't exist as it does today without its boost by IBM. And if IBM had not existed we would have had standardisation based on Commodore or some other brand of hardware - and been the better for it as the PC architecture was crippled. Standardisation occurred because the world needed it, not because of Microsoft, who have historically been the enemy of standardisation.

    Whatever course hardware had taken, sooner or later it was going to become powerful enough to put a version of Unix on it. Nothing to do with Microsoft.

  19. Re: This is not something to commemorate. on Happy 30th Birthday, Windows! · · Score: 1

    Except that along with MS-DOS, it put a PC in every office

    No, IBM did that. Personal computers (non-IBM, non-Microsoft) had been around for a while already, but not in mainstream offices. That is because company IT buyers at the time would not buy anything without the IBM logo on it. The IBM PC made personal computers respectable to business because they were IBM, it would not have mattered what OS they ran (could have been CP/M-86, IBM could have written their own, Seattle Computer Products* could have provided DOS directly instead of via Microsoft, or whatever). Also, IBM PCs could be used as terminals to the company [IBM] mainframe so the clueless company buyers could be fooled into thinking the IBM PC was no more than that : that is how my office first got one.

    and eventually a PC in every home

    My home had a personal computer before the IBM PC with DOS was invented, and before I'd even heard of Microsoft. The young guys I worked with also had Commodores, Sinclairs etc. Home computing was taking off already without IBM/Microsoft's help and would have gone to the level it did with or without Microsoft

    without which Linux might not have been possible.

    That claim, sometimes heard, completely baffles me. Are you saying that personal computers would never have developed the power to run Linux if it had not been for Windows? WTF wouldn't they? Linux runs and is developed on almost any platform. It was originally developed on Minix, another Unix OS. IMHO Microsoft retarded the development of the PC by about 5 years while they had their love affair with Windows 9x.

    * You do realise don't you that DOS was not written by Gates or Microsoft, it was bought by them? They hired the author (Tim Paterson) to port it to the IBM PC.

  20. Re:Marketing not greatness of product on Happy 30th Birthday, Windows! · · Score: 2

    I will freely admit that Bill Gates is a world class genius when it comes to marketing software.

    I don't agree. Gates got on the bandwagon not because of genius, but because of the staggering incompetence of others. The incompetence of Digital Research of missing the chance to write the OS for the IBM PC. The incompetence of IBM management for not taking their own PC seriously and allowing Microsoft free reign to cash in on it instead. Gates was not the only person to see the great future for personal computers - everyone (except IBM management) saw it at the time.

    In another life Gates would have been the boring POS in the corner of the office who, because of his frequent temper outbursts, never got promoted.

    Since then, Microsoft's success has been due to pumping its established monopoly for all its worth, legally and illegally. That does not require genius.

  21. Re:Not most used, sorry on Happy 30th Birthday, Windows! · · Score: 1

    That's what my parents said about desktops: an expensive device just used as a toy. And they were right at that time.

    I don't particularly recall people saying that. Desktops, even non-IBM ones, were that expensive (equivalent to $2-3k today) that they were not bought for children - more like for adults "writing their book", keeping home accounts, and of course in offices as superior typewriters. Games crept in later.

    Anyway, you cannot sidestep ergonomics. A keyboard is and will remain the fastest and easiest way to input text information - even faster than voice when it comes to the editing which any serious text will require.

  22. Re:Automate trains on TGV Accident Caused By Excessive Speed (railwaygazette.com) · · Score: 1

    Why are we still using humans to drive the trains? We already have computer-driven cars on the roads — and driving a car is a lot harder for a computer both because of the complex terrain and human-only signalling.

    I wonder, what is it? Is it a fear of protests by union-thugs? Engineers' own inertia?

    As one such engineer (formerly), I can tell you that one reason is passenger unease with having no driver, and another is to have staff on hand to deal with emergency situations (like evacuation). We have yet to see public unease with driverless cars abate - perhaps then we could have driverless trains. That might seem the wrong way round (as you say, trains are one-dimensional), but the public (and the press) illogically demand a far higher safety standard (real or as they perceive) for trains than cars - a source of exasperation for us railway engineers.

    Having said that, there are some driverless railways - the [low speed] London Dockland Light Railway for example [low speed and driverless, but not staff-less]

  23. Re:Excessive Speed? on TGV Accident Caused By Excessive Speed (railwaygazette.com) · · Score: 1

    Gun violence is gun violence. Doesn't matter if it's a terrorist or a robbery or a crazy person.

    Think you missed my point. TFA is about a railway accident.

  24. Re:It didn't have to happen on TGV Accident Caused By Excessive Speed (railwaygazette.com) · · Score: 1

    Yet one more accident that could have been prevented by Positive Train Control

    Wouldn't a hosts file have prevented it?

  25. Re:Excessive Speed? on TGV Accident Caused By Excessive Speed (railwaygazette.com) · · Score: 1

    more people die in a couple of days in the US of A from bullets than died in the Paris terrorist attack

    Way to go! Bring the issue of USA gun ownership into the discussion!

    We need the equivalent of Godwin's rule to describe doing this. I'd call it Nukenerd's rule.