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User: dwywit

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  1. Re:Mitigate it? on NASA Working On Solar Storm Shield · · Score: 1

    What scale of transient should I expect? The PV panels and supply cables range from 0 volts at nighttime to 31 volts on an equalising charge. The batteries drop to 23.6 occasionally but mostly range from 24 to 30 volts. The regulators have to cope with this, of course. Their heatsinks get quite warm when they switch to float charge. The sine-wave inverter is built to cope with inputs from 22 volts to 32 volts (iirc)and supply a stable 240 out - it shuts down if the supply goes out of range. I didn't mean to give the impression there was no protection at all, so what's likely to fry? The PV panels have protection diodes and also have fuses at the junction boxes (required by law in .au, these days - each panel must be fused), the battery box has a stonking big fuse and manual circuit breaker, there are circuit breakers on the household DC and AC circuits, there's an earth leakage detector/shutoff, and the inverter also has overload protection. Would induced transients jump all/most/any of these protections?

  2. Re:Mitigate it? on NASA Working On Solar Storm Shield · · Score: 2, Interesting

    So, I'm off-grid with 2.5KW of PV on the roof, and 1300ah of batteries, plus inverter and regulators, and backup generator. What sort of impact will it have on me, and if my power system stays up, will the value of my place skyrocket? Or will my on-grid neighbours start turning up with food to store in my freezer, clothes to wash in my machine, and DVDs to watch on my TV?

  3. Re:Something I find interesting on Gene Simmons Threatens Anonymous Again and Gets DDoS'd · · Score: 1

    I might get modded down for this, but I subscribe to Live365, and my stations play via an old laptop plugged through to a small stereo in the kitchen - I listen for maybe an hour or two a day, while I'm cooking dinner and washing the dishes. Sure there are some "big label" artists, but that's not going to stop me listening to The Pogues anytime soon. There's mainstream genre stations, and lots of nice little specialty stations (e.g. Ozark Mountain Airwaves, Jean's Rambles) that I might choose to listen to once in a while. You don't have to subscribe, but there's no ads when you do, no talkback, and I get a nice warm feeling in my tummy that maybe some of my money is going to less-well-known but equally entertaining artists.

  4. Re:offtopic but hilarious on Indian Military Organization To Develop Its Own OS · · Score: 1

    Hell, Microsoft even used AS/400s for a long time: https://cs.senecac.on.ca/~tmckenna/offline/MS400.html

  5. Re:Fermenting in space? on Researchers Test Space Beer · · Score: 1

    Beer brewing starts off as an aerobic process - the yeast consumes all the dissolved oxygen, then it switches to the anaerobic phase, producing CO2 and alchohol from the fermentable sugars in the wort. So it does consume oxygen and generate CO2, and it all has to be accounted for - as well as the methane produced at the tail-end.

  6. Re:Oh no. Not again. on Star Wars Films In 3D Due In 2012 · · Score: 2, Insightful
    Enjoy over-stating things, do we? Blade Runner has 3 versions and an unofficial workprint - hint for you, here: LOTS of films are shown to test audiences as works-in-progress and then undergo their final edits. The producers took over editing the first version, and THEY were responsible for the voice-over and happy ending, not Ridley Scott. Scott didn't have nearly as much to do with the first "director's cut" as he did over the final version. The reason it took so long to get the final version was protracted negotiations with the owners of the film - get it? Scott doesn't own this film, unlike Lucas and his golden geese. Besides, even though it's a cult favourite, you can hardly put BR in the same money league as SW. It's just not going to pull in as many suckers^W fans to keep buying those new, special, collectors, Blu-ray editions.

    Yes, yes I know you were being ironic.

  7. Re:Previous condition on Family To Receive $1.5M+ In Vaccine-Autism Award · · Score: 1
    Jesus wept, ALL diseases are potentially lethal, given the right circumstances. You've chosen to vaccinate your kids? Great, I respect your choice and I support your right as a parent to make that choice. Please keep your freshly-vaccinated kids away from mine for a few weeks, mmkay? Hang on, don't do that - feel free to let your freshly-vaccinated kids associate with mine, or not - it's your choice.

    Sorry, did I give the impression I'd left? Still here, wouldn't live anywhere else.

  8. Re:Previous condition on Family To Receive $1.5M+ In Vaccine-Autism Award · · Score: 1

    Yep, that's the plan - test for what's missing around 13-14, and consider vaccination then.

  9. Re:Previous condition on Family To Receive $1.5M+ In Vaccine-Autism Award · · Score: 1

    "Infectious spawn"? My, what a vehement response. We're all infectious to one degree or another, hmmm? And no, they're not home-schooled, they go to a private school whose values reflect our own - freedom of choice. I've had opinions from a number of doctors, some GPs and a couple of specialists, and you know what? The things they say to you in the privacy of a consultation can be (not always, of course) quite different to the official positions and media releases of their professional organisations. So yes, we did quite a bit investigation before making the decision to delay or decline vaccinations, and I'm not so blind as to ignore the potential dangers. The kids have had tetanus shots when we deemed it necessary, and I'll have Mr. 12-year-old tested soonish for the presence of antibodies to those common diseases, and make another informed decision about whether to vaccinate for anything he might be in need of. Fortunately our constitution guarantees no forced medical treatments, and our schools usually only require exclusion for the duration of the disease.

  10. Re:Previous condition on Family To Receive $1.5M+ In Vaccine-Autism Award · · Score: -1, Redundant
    Well, your statement is couched in terms of the absolute, so I'll reply in the same way.

    I'm 48, born and grew up in Australia, and I was not vaccinated against measles, mumps, rubella, chicken pox, or whooping cough. I received oral polio vaccine, I've had the odd tetanus vaccine in response to the usual but infrequent puncture injuries, I received a smallpox vaccination and yellow fever vaccination prior to travelling overseas in 1974, I've definately had full-blown wild-caught measles, mumps, and chicken pox in my childhood, and I'm still here. My children aren't vaccinated (12 and 8 respectively), and they're slender, highly active kids - the older was swim club champion last year. Actually, I can't fatten them up - I cook nearly all their food, and they don't often leave much on the plate.

    It's got more to do with healthy lives and healthy immune systems than vaccines.

  11. Re:Really? on Film Industry Hires Cyber Hitmen To Take Down Pirates · · Score: 2, Insightful

    I suspect a certain software company - sort of rhymes with "complex" - might find its own servers suddenly subjected to the same treatment.

  12. Re:decent bloke on The Many Iterations of William Shatner · · Score: 3, Insightful

    Hmmmm, Zulu, Alfie, Ashanti, Dirty Rotten Scoundrels, and The Italian Job all disagree with you, but then there's Blame it on Rio, the only redeeming feature of which was a young Demi Moore topless.

  13. Re:Location on UVB-76 Broadcasts New Voice Message · · Score: 1

    Maybe - using a bomb disposal robot controlled from say, 50 kilometres away.

  14. Re:How long till 'clean'? on Chernobyl Area Survey Finds Lasting Problems For Wildlife · · Score: 2, Interesting

    It would be interesting to do followup studies of these people, especially to establish their natural resistance/tolerance to those radiation levels. Imagine the long-term prospects of a group of highly-tolerant individuals - do they have highly-effective repair mechanisms, highly-effective elimination systems, or what else?

  15. Re:contract on Nuclear Energy Now More Expensive Than Solar · · Score: 1
    Well put - in fact, I've not seen a better one for, well, maybe never. It's not always about the upfront $$$, people.

    In any case whatever makes people think that existing energy supplies (oil, coal) *aren't* subsidised?

  16. Re:Simple on Passwords That Are Simple — and Safe(?) · · Score: 1

    I used to generate moderately complex administrator passwords that were fairly easy to remember. Not *the* administrator account, but user IDs who were members of the admin group. For example: beerjug$1, freefood#7, quitetight91, etc. My minions were pleased at the ease of remembering them, and the auditors were satisfied with the complexity.

  17. Re:Thank God it's unmanned on Germany To Test Actively-Cooled Spacecraft · · Score: 2, Insightful

    Uh, perhaps they'll start before the tiles get that hot? i.e. before it even starts to heat up, so that it never gets that hot?

  18. Re:Heck... on Willow Garage Robot Fetches Beer, Engineers Rejoice · · Score: 1

    Perhaps - but what do you put in a cooler to chill the beer? Ice. And how do you get the ice? By using the freezer compartment in a refrigerator. Of course, if you don't want to use a refrigerator for your ice, you could always hop in the car, drive to a shop, and buy some ice. Sorta defeats the purpose of not having to get off yo lazy fat ass, though.

  19. Re:Good on AU National Broadband Network Signs $11 Billion Deal With Telstra · · Score: 1

    Not Telstra, bigpond. And your mileage varies, obviously. As I said, not the cheapest, or the fastest, but until recently (as I mentioned above), the tech support was better than most others I've had to deal with - the only other ISP that I've dealt with that's any good is Westnet. I'm usually called in because the end user can't decipher the accent on the other end of the phone. The amount of buck-passing and finger-pointing I've heard from some ISPs makes it not worth the hassle, or the difference in price.

  20. Re:Good on AU National Broadband Network Signs $11 Billion Deal With Telstra · · Score: 1

    S'funny - I've heard the greatest range of responses to Bigpond/Telstra service. I deal with mostly domestic customers, plus a few small businesses, and the unhappy ones are REALLY unhappy - they'll never, ever go back to Bigpond. Most of the others, well, it just works. Telstra's business-grade offering for ADSL is OK - they're not the cheapest, or the fastest, but I've never spent more than 10 minutes on a phone queue, and issues get resolved fairly quickly. I've only stopped recommending Bigpond recently because their tech support fucked over one of my customers. The Bigpond resellers might be cheaper or faster, but you have to go through channels to resolve problems - report to ISP, who refer it to Bigpond, where it might get sent to second-level support, or a line fault gets sent to Telstra field staff - it take days or weeks to resolve line faults if your first point of contact is a reseller. The only ISPs I'll recommend are Westnet and Internode.

  21. Re:Scary on NASA Warns of Potential "Huge Space Storm" In 2013 · · Score: 1

    I'm interested in the effects it might have on my solar PV panels. They're basically a simple semiconductor circuit - fairly robust physically, but will increased insolation energy levels cause problems, I wonder?

  22. Re:iNelson on MA High School Forces All Students To Buy MacBooks · · Score: 1
    My kids' school is moving from Windows to Apple. The laptops will be replaced with iPads within a week or two (one of the first schools in OZ to do so, apparently), and each classroom will have 3 or 4 big-screen iMacs for things that the iPads can't do.

    Like multitask

    And plug in USB devices

    And run software that's relevant to their curriculum.

    When I mentioned to their proud teacher that the iPads didn't multitask, can't use memory sticks without adapters, and don't run a lot of software that the kids are already used to, her eyes popped. It was obvious that none of the IT-savvy parents had been asked about this, so someone, somewhere is pushing the Apple barrow. All the windows boxen in the admin office have also been replaced with iMacs. Interesting times ahead. Currently I volunteer as an in-class tutor for IT & multimedia classes - good luck getting someone, anyone around here with Apple experience & skills to do the same job - so it will fall back on the teachers to get educated about Apple hardware & software.

  23. Re:Decrease, not increase on Solar Cell Inventor Wins Millennium Prize · · Score: 1
    Funny, that. We're off-grid, 100% PV powered - except for today which is very cloudy, and I have the backup generator on :-(. On a sunny day, I can run 2+ computers, a TV, and the washing machine with energy to spare, i.e. the batteries still reach float voltage. Cloudy days, not so much, but being sunny Queensland, there's not many days like this. You have to learn to adjust your usage to the conditions.

    I'd like to know more about PV that's "dye sensitised". Coming from an old-skool photographic background, phrases like "dye sensitised" have me thinking "fades very quickly when exposed to constant sunlight".

  24. Re:Thanks on Recent Sales Hint That Tape For Storage Is Far From Dead · · Score: 1

    Sigh - memories. Backing up 200MB of System/36 to 8" floppies. Then we stepped up to an AS/400 - backup to 9-track tape. Ah, those big reels of tape. Funny drive on the E35 - slide the tape in the front slot, close the door and the vacuum pump goes on, sucking the tape through the path and onto the takeup spool. Data density 3200CPI, unique to that drive at the time, when the other IBM drives had 1600 or 6250CPI.

  25. Re:MPG and GPM are both useful on 2 In 3 Misunderstand Gas Mileage; Here's Why · · Score: 1

    Yep. When travelling long distances - not just the 20-30kms to another town, I mean something like Adelaide to Perth is 2700 kms - you want to know how far your tank of fuel will get you. There are gas stations along the way, sure, but there are also warning signs - "Last gas for 300kms" and the like. It matters less on such a trip that your car will consume x liters per 100km, it matters more when deciding to top up your tank at this stop, or whether your 3/4 tankful will get you to the next stop. Both methods are useful to motorists, for different circumstances.