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User: gregski

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Comments · 38

  1. Although noise rejection isn't normally an issue, different fibres do have different bandwidths:

    http://en.wikipedia.org/wiki/M...
    http://en.wikipedia.org/wiki/S...

    and then there's the hollow fibre mentioned in the article, which achieved 73.7 Tb/s!

  2. Re:Answering an old chestnut on Blowing Up a Pointless Job Interview · · Score: 1

    Some brilliant QI on this:
    http://www.youtube.com/watch?v=s7aROzLVS58

    I think it's best to angle it more towards:
    Well I'm not so hot on *insert new fangled technology here*, but I'd love to learn more about it.

    I.e. Assume they're talking about technical capability, rather than personal issues!

  3. Re:Not the algorithm we need on How Machine Learning Can Transform Online Dating · · Score: 1

    this is exactly the problem this algorithm attempts to solve:

    "They also analyze the replies you receive and use this to evaluate your attractiveness (or unattractiveness). Obviously boys and girls who receive more replies are more attractive. When it takes this into account, it can recommend potential dates who not only match your taste but ones who are more likely to think you attractive and therefore to reply. "The model considers a user's "taste" in picking others and "attractiveness" in being picked by others," they say. "

  4. Re:Spacecraft, aircraft, commercial vehicles... on NASA Teams To Build Gyroscopes 1,000X More Sensitive Than Current Systems · · Score: 1

    Gravity Probe B had what i believe is at least a comparable spec of gyroscope:

    http://einstein.stanford.edu/TECH/technology1.html

    "The SQUID magnetometers are so sensitive that a field change of only one quantum—equivalent to 5 x 10-14 gauss (1/10,000,000,000,000th of the Earth's magnetic field) and corresponding to a gyro tilt of 0.1 milliarcsecond (3x10-8 degrees)—is detectable. "

  5. Re:...Why? on Galileo: Europe's Version of GPS Reaches Key Phase · · Score: 1

    "You can't carry atomic clocks in your pocket, they're a tad too big for that."

    Well, that *used* to be true!

    http://www.symmetricom.com/products/frequency-references/chip-scale-atomic-clock-csac/SA.45s-CSAC/

  6. Re:If you are too old to retrain... on Ask Slashdot: Am I Too Old To Retrain? · · Score: 1

    exactly, outside of work I meet some people who are nearing retirement at 25, and others are full of life well into their retirement. My great uncle was still fixing his car at 80!

    I learnt c#, c++ and c just after uni (with only BASIC as prior experience) whilst working primarily as a physicist, and am now a full time software developer. As with any learning, you find the best people around to learn from and put the effort in. Changing teams reasonably often enables you to cherry pick techniques and ideas, whilst bouncing your own off others.

    It also helps to ask your employer for as much relevant training as possible. Understand the technologies that interest you in particular through your own reading and practice.

    Of course if you really can't be bothered to at least keep up with the cutting edge of technology (or invent it!) then perhaps you should think of a different career path.

  7. Re:'Atomically pure material' on Qubits Stored at Room Temp For Two Seconds · · Score: 3, Informative

    from the harvard gazette article:

    "In initial experiments, the team used diamonds that contained 99 percent carbon-12 atoms"

    "Working with researchers at Element Six, a British-based company that specializes in manufacturing artificial diamonds, they developed a new technique to create crystals that were even more pure: 99.99 percent carbon-12."

  8. Re:How many small businesses don't start... on US Patent Trolling Costs $29 Billion a Year · · Score: 1

    respond thusly:

    "We refer you to the reply given in the case of Arkell v. Pressdram"
    http://www.nasw.org/users/nbauman/arkell.htm

  9. Re:Not Intended to be Industrial Grade on Samsung Galaxy S3 Face Unlock Tricked By Photograph · · Score: 1

    I prefer to use a picture of Emily Blunt, that way if she ever takes my phone at least I have her number!

  10. Re:This isn't definite on Faulty Cable To Blame For Superluminal Neutrino Results · · Score: 1

    a slightly better "article" from the nature blog giving the official and unofficial stories:

    http://blogs.nature.com/news/2012/02/faster-than-light-neutrino-measurement-has-two-possible-errors.html

  11. Re:Limitations on Two-way Radio Breakthrough To Double Wi-Fi Speeds · · Score: 1

    You're right that a significant issue with noise cancellation is the dynamic range / resolution of the reciever. A lock-in amplifier does just the job:

    http://en.wikipedia.org/wiki/Lock-in_amplifier

  12. Re:First Packet? on The Internet Turns 40, For a Second Time · · Score: 1

    http://news.bbc.co.uk/1/hi/technology/8331253.stm

    apparently packet switching was first demonstrated at the NPL in 1970.

  13. Re:BBC's Top Gear on Ford Bets On Social Media For Fiesta · · Score: 1

    pish, the real test is how well the car performs in a typical beach assault scenario!

    http://www.youtube.com/watch?v=vauvmLPOoHo

  14. Re:Bender sez... on Vista To XP Upgrade Triples In Price, Now $150 · · Score: 1

    ahh but blackmail can be turned into such an exciting game show:

    http://uk.youtube.com/watch?v=SDAFrW_vNNQ

  15. not that new on DARPA Developing Super Scope · · Score: 4, Informative

    Lucky imaging has been used in astrophotography:

    http://en.wikipedia.org/wiki/Lucky_imaging

    i believe the main difficulty would be in the automation of the technique.

  16. Cup Of Brown Joy on Dead At 92, Business Computing Pioneer David Caminer · · Score: 4, Funny

    Yes precisely this seriously:

    http://uk.youtube.com/watch?v=eELH0ivexKA

  17. Optical fourier analysis on Ten Weirdest Types of Computers · · Score: 1

    The optical computer section didn't really mention the optical fourier processor. Fourier transforms in this type of system occur in real time, with just a simple lens!

    http://sharp.bu.edu/~slehar/fourier/fourier.html

    Optical correlators have been built to perform pattern matching, including face recognition:

    http://en.wikipedia.org/wiki/Optical_correlator

  18. Re:I've said it before... on Researchers Explore Quantum Dot Based NVRAM · · Score: 1

    ... carbon nanotubes?

  19. Re:Moogle? on What If Gmail Had Been Designed by Microsoft? · · Score: 1

    In the past i've had the unfortunate experience of trying to connect to webmail in an internet cafe in uganda with a 56k modem shared between about 30 people.

    I should imagine google search by the guys behind windows search would be about as painfully slow as that.

  20. 132KV Circuit breakers on The Top Ten Off Switches · · Score: 1

    Air tripped breakers are great, stand in the wrong place and you too can be blown all the way down the corridor!

    I've also heard a local hospital has a switch with a sign simply stating "£15,000". It releases all the liquid nitrogen in the nmr supermagnet.

  21. Re:Understandable on Australia Cracked US Combat Aircraft Codes · · Score: 1

    Remind me of yes prime minister:

    Sir Humphrey: "With Trident we could obliterate the whole of Eastern Europe."
    Jim Hacker: "I don't want to obliterate the whole of Eastern Europe."
    Sir Humphrey: "It's a deterrent."
    Jim Hacker: "It's a bluff. I probably wouldn't use it."
    Sir Humphrey: "Yes, but they don't know that you probably wouldn't."
    Jim Hacker: "They probably do."
    Sir Humphrey: "Yes, they probably know that you probably wouldn't. But they can't certainly know."
    Jim Hacker: "They probably certainly know that I probably wouldn't."
    Sir Humphrey: "Yes, but even though they probably certainly know that you probably wouldn't, they don't certainly know that, although you probably wouldn't, there is no probability that you certainly would."

  22. Mid Range DX10 Cards == Crap on AMD Finally Launches Low-Price DX10 Cards · · Score: 1

    Looking at those results i'm still glad I went with the relatively cheap and cheerful 7900gs, it may only be DX9 but hey I don't have vista, and by there time there are any decent games requiring it, this generation will be completely obsolete.

    8800gts and above are the only worth while DX10 cards imho.

  23. Re:Is it gonna be called on Commodore Returns with New Gaming PCs · · Score: 2, Funny

    From what I remember of the C64, 3.17yrs to load a game sounds about right.

  24. "Nanotech in Microchips by 2015" on Nanotech in Microchips by 2015 · · Score: 3, Informative

    And there was me thinking that microchips manufactured on the 65nm scale was nanotech.

  25. Somewhere in between on Search Engine Results Relatively Fair · · Score: 1

    As is the case with many things the truth is somewhere in between these two. While I will quite commonly end up visiting an obscure site through google because it has high relevance, the larger sites will almost certainly be listed alongside these results.

    For instance slashdot is highly ranked and grows because it has high relevance to a wide selection of technical topics and is also linked from a large number of sites because it is well known.