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User: nietsch

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  1. Re:hot and cold fusion on Team Confirms UCLA Tabletop Fusion · · Score: 1

    The ions trapped in the well are not sitting motionless there, the oscilate between the bounds of the well, each time accelerating in a different direction. Thus the bremsstrahlung, IIRC.

  2. hot and cold fusion on Team Confirms UCLA Tabletop Fusion · · Score: 1

    It appears to be doable at room temperatures, but the ion themselves travel at ~100 KeV (Kilo electronVolt) which translates to absurdly high temperatures (for that single ion)
    You need that speed to get fusion, otherwise your nuclei will not come close enough together.
    This will probably not be a potential source for nett-positive fusion, it will alway cost more energy to produce than is released (and capured) by the device. This is because on an atomic scale evene crystals are mostly empty space and the chance of hitting a nucleus before the chamber ends is pretty low. If you try to reuse the ions like is done in a fusor you loose too much energy in 'bremsstrahlung' when you change the direction of the ions. Sadly, the best chance of succes is still in the big tokamak-like contraptions.

  3. So we should let Mensa take over the world? on Saying 'No' to an Executable Internet · · Score: 1

    The percentile you desribed as 'smart' is IIRC the same percentile you have to score in to be allowed as a member.
    But if we are going to have those people do all the actual work, what shall we do with the rest of them? maybe store them in some cubeville office and have them look at pr0n on the their tellies all day?

  4. The common infection route is cat poo on Mind Control Parasites in Half of All Humans · · Score: 4, Interesting

    There is some evidence that the parasite is manipulating his intemediate host's(rodents) behaviour to end up in the final host: cats. Cat droppings spread it again to rodents nearby. This mechanism has two species that benefit from it (the parasite and the cat), so it is likely this interaction reinforces itself.

  5. Re:Now would be a good time... on Acquittal of German Wikipedia · · Score: 1

    Very true. The last time this discussion came around, someone remarked that some people do no notice how cruel they get when you stick very stricktly to your principles. That and a low empathy/self-improtance ratio ('my right to say whatever I like is much more important than caring for your feelings)

    It's a pity though that we'll probably get the same discussion here again.

  6. ONLY 1 mention of that word? on Building Intelligent .NET Applications · · Score: 1

    No need to bother to read the review indeed. But it suprises me: there is only 1 mention of 'oxymoron' on the page. Is this the same /. Is /. dying? I'll have to check netcruft :-)

  7. Re:Quick interview on CBC on Using Barges to Fight Global Warming · · Score: 1

    Wasn't there a period in the middle ages called 'the little ice age'?

  8. Re:And while they plan all these... on Operation 'Cyber Storm' Starts Tomorrow · · Score: 1

    That is a hairstyle, isn't it
    Wigs for peace!

  9. Re:What about DNA replicating chemicals? on Super Bowl Footballs Get The DNA Touch · · Score: 1

    Very true indeed. But you can splice them together with restriction enzymes etc. Cutting and pasting DNA was pretty common in my time at uni.

  10. not the roach or wasp as you know them on Wasp Larvae Feed on Zombie Roaches · · Score: 5, Interesting

    the roach genus is quite prolific and well distributed with only 2 or 3 considered pests. The same goes for wasps, and only a few specieses of the genus are considered pests. A whole lot more wasp species are grown as biological crop protection: the locate the caterpillar, lay an egg in it and watch while the new wasp eats its way out of the still living caterpillar. Nothing new here, except that this particular species has found a way to use the roaches power to move the body to a premade burrow instead of digging the burrow on the spot.
    Unless Slashdot has a very high percentage of entymologists, I don't think it is that newsworthy for slashdot readers. BTW the submitter was flogging his own book it seems?

  11. Re:What about DNA replicating chemicals? on Super Bowl Footballs Get The DNA Touch · · Score: 1

    Yes that is a possibility. I am not a molecular biologist anymore, but the reaction you are referring to is the polymerase chain reaction, and it is indeed routine in DNA labs. However, there are two obstacles to overcome: you don't know the start and end sequence of the DNA, and you do not have the actual DNA to start the reaction with.

    The claim of 1 in 3 trillion is not likely either: the cost of synthesizing DNA is ~ $1 per base, and I believe they used a length of DNA of ~1Million bp. that would set them back over 1 million just to make the DNA. So it is very likely the did not start with random DNA, making the 1 in so many claim based on the number of basepairs incorrect. (it would probably still be ridiculously high though)

    My suggestion would be not to mark them with DNA, but with ricine. It is very easy to detect the genuine balls: everybody that kissed the wrong patch dies a day later. Now that would make the silly sport exiting!

  12. bad designers have a lower ratio on 'Used' A Dirty Word in Gaming · · Score: 1

    Bad game designers/creators have a lower ratio of good/bad ideas. Creativity is not so much as coming up with good ideas, but learning to generate enough ideas and recognise the good ideas sooner. If you can spend more money/time on it, the chances that you come up with something worthwhile.

  13. Depends on who is doing the distributing on Linux Powers Military UGV · · Score: 1

    If you steal a car, you are not distributing it, unless you make copies of it (with you car-copier?) to give to your homies.

    The same goes for a captured vehicle or a thief: it does not involve copying. When it does, the one doing the copying and distributing is responsible for the obligation to suppy the sourcecode to all recievers who ask for it.

  14. Re:The Cathedral and the Bazaar on Comparison of Pandora and Last.fm · · Score: 1

    Your point may be true, but lastFM's model breaks down with smaller numbers.
    I can only talk from my own experience, so I will: If you create a small subset by playing very diverse music like bluegras (Bill Monroe, Alison Krauss, Nickel Creek) and mix it with some rougher music (like New Model Army and Flogging Molly) You end up with very strange suggestions too, but these tend to gravitate towards a popular middle ground (so I suggested to play rolling stones and other popular & bland stuff).

    If you use a model that emphasises popularity, you will tend to gravitate towards middle of the road stuff that everybody likes. Part of the identity forming sides of music is that you as a person use it to differentiate yourself from some group too. This middle ground seeking algoritm will not help you find music that you like then. Or to come back to your metaphor: you will only hear what they talk about in the bazaar, but it is hard to discover truly new literature/languages this way. At least the cathedral will teach you some church-latin.

  15. No, post under slow new day down under. on Police Restrict Public Photography · · Score: 2, Insightful

    The summer holiday have just passed over there. This is what I think happened:
    club member snaps oil tanks.
    Police notice him and decide to investigate.
    To save his face after finding out it was nothing to worry about, officer makes a stern warning not to do that again. Clubmembers dislike officer and make some waves about it.
    Papers need some new and like a row, pick up story.

    Except that there was no real news story. Yeah police down under are a bit thick, but that is no news.

    fact-void.

  16. Moderator on Wikipedia vs Congressional Staffers [Update] · · Score: 1

    No, moderators need to be paid. If you do not pay them money to adhere to fair rules, they will try to get their payment in other forms, usually involving eploiting their special status as moderator.

  17. Why is this guy 'CEO'? on Boing Boing Threatened By Software Creator · · Score: 1

    Maybe that CEO thought that he could bully them around a bit and make the negative press disappear. After all it is probably his ass/job on the line.
    Why this id10t call himself CEO is a wonder to me. Anybody with two braincells would have known how his actions could backfire badly. But then again, the company makes software that works against their users, so they cannot be too smart anyway.

  18. quarantine? on Wikipedia vs Congressional Staffers [Update] · · Score: 4, Interesting

    Maybe instead of banning them outright, the ip's involved in this matter (or any serious breach of the rules) should not just be banned, but silently rerouted to a server running a different copy of wikipedia. They could make all kinds of 'mistakes' etc there, but only similarly banned ip's would ever see that content. They keep wasting time (and taxpayers money) while the rest of the world would have a chance to do without their contributions to humanity.

    Does anybody know of such a system implemented in any forum/community software? I think it would be quite effective.

  19. No Need, you already have a blueprint on X Prize Foundation Encourages DNA Decoding · · Score: 1

    The assembling of sequences obtained from so called shotgun sequencing are hard to assemble, because you don't know where each piece of sequence belongs. (shotgun sequencing chops th DNA in random chuncks, isolates single chunks and sequences these) But once you know where a chunk belongs, and that is pretty easy if you have more than 1000 bases, you can just put it on the map. There will be viariation in the sequence as people do not have 100% the same sequence, but this is very small compared to the similarities.
    This also shows that shotgun sequencing in this case is not the best approach, as you will waste resources with chuncks that overlap eachother (in the first sequencing this overlap will give you a welcome verification).
    This would be my conservative approach: (I am not active in this field anymore): Determine candidate primer sites on the whole human genome some 1000 (or whatever the maximum readable sequencelengt is nowadays) A primer in this case is a short piece of single strand DNA that you use to make lots of copies of with PCR. You can use 1 of those primers to read the sequence per fragment.
    There are ~3 billion basepairs in the human genome. If even if you could read say 3kbp in one run, you'd still had to do 1 million runs. That is certainly doable if you throw enough money at it, but not doalble for say 10K. The price of the raw reagents is just too high (many methods have been patented making it even more expensive)
    So that leaves open two alternatives (or more?) Only sequence what you can connect to a phenotype (ie. some inherited disease). That is where to problem lies now, not the capacity to determine a DNA sequence.
    Or get develop techniques that do not require large amounts of reagents per sequence determined. I think this would require nano technology, as you need to connect proteins to silicon. Maybe you could glue RNA or DNA polymerase to a chip and have the chip register what kind of base gets incorporated in the new strand. Put a lot of these mini detectors on a chip, add a few (mili)grams of raw bases and your sequence will be read.
    But then again, right now we have nothing to actually interpret that data.

  20. does nto matter, site slashdotted already. on Canadian Record Label Fights RIAA Lawsuits · · Score: 1

    within a few comments the site went blank. Now I got this mabo warning that I should have to warn the site's admin. Serves him right for not switching to Joomla!

  21. Re:Stem cell source on Cardiac Patch for a Broken Heart · · Score: 1

    If only there was a way to prevent infectious diseases to spread from these religious nutjobs to other people, I'd say go for it. I love natural selection in action with these people. Unfortunately it is usually their kids that are dying, and they cannot have made a concious decision to risk their lives for some questionable beliefs.
    It could only be with people believing in eternal damnation that a virus that was isolated and attenuated decades ago with the help of celllines from aborted fetuses that the virus offspring many generations later still is to be banned. How many of their children have to die to wash away the sins of an aborion of an unwanted fetus? I thought it was one, he was 408 months old since conception and was nailed to a tree for political reasons. That particul;ar death is sopposed to have washed away all sins, but i guess some zealots feared his blood was running a little thin so they sacrificed their own kids just to make sure?

  22. Re:Actual Complaint on German Wikipedia Threatened w/ Injunction · · Score: 1

    As much as I can relate to the family's wishes, I think there are no grounds for censoring the name after it is that widely known.
    When it is censoring and when is it social manners? If I believe you are an evil which-doctor, I have the freedom to say so, and it would indeed be cencorship if the law was used to stop such speech. But even if I have the freedom to do so, I choose not to do so. Is that censorship too?
    But I agree that it is sad they had to resort to the law to get their wishes granted and it has certainly backfired on them, but even more so on the cruel and callous (german) wikipedia. And the end result is that the opportunistic bastard writer gets away with it. I would not mind sending him some rope.

  23. Re:Actual Complaint on German Wikipedia Threatened w/ Injunction · · Score: 1

    You can be sure that a lot of Adolphs and Hitlers (tried to) changed their name after the war.
    But Adolph Hitler did not refer to himself as Adolph H. or tried any other way to stop his name from being known.
    This TRON certainly did try to keep his family name hidden and he certainly did not commit horrible crimes(ie like Marc Dutroux).

    I think the problem is caused by some anal wikipedians that are turned-on by following the rules/principles but lack the empathy (let me translate for /.: ability to sense other peoples emotions)to understand why in this case they are still free to use his familyname but better shouold not do so.

    This is not bad luck, this is just pure cruelty. Everybody will agree that the 'author' that put TRON's name on a fictional book is an opportunistic bastard, but so is every dilletant that uses his name to prove their freedom of speech.

  24. pinhole on Homemade Digital Cameras · · Score: 1

    A pinhole camera would fit your needs methinks. Just punch a very small hole in a lighttight box and voila there is your camera. But you will have to figure out your own exposure time though.

  25. be smart use SMART on Flash Memory to Rival Hard Drives · · Score: 1

    if you use smartd, it can warn you of disk that are about to break down. Disks themselves can correct bad sectors with a checksum per sector, if the sector is really gone it is moved offline and swapped for a spare sector. Similar methods might be used with flash.