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  1. Very adictive but... on NetHack: Still One of the Greatest Games Ever Written · · Score: 2

    ... the keys used to specify directions are a real pain on laptops without a keypad.
    I can't imagine anyone using the vi shortcuts (k for up and, going clockwise, u l n j b h and y).
    Using an external USB keypad is a possible solution but my experience with those devices is that they are unreliable and they behave strangely with Numlock.

  2. Re:This actually sounds pretty cool. on Ubuntu Gets Container-Friendly "Snappy" Core · · Score: 3, Informative

    The article indicates that containers can be upgraded by sending only the modified files so upgrading a lib should not cost too much.
    If their system is not too stupid then it will manage the container at the file level and will try to share identical files between packages.

    That should not be too difficult using checksums and hard links. If they don't do that then the kernel won't be able to share files between applications and the whole system will use a lot more memory. Linux application are sharing libs but also some data files such as TTF fonts.

  3. Re:C is primordial on How Relevant is C in 2014? · · Score: 1

    The malformed sentence in the middleshould of course be "See for exemple the Gobject API" and later "If you want to create compiler for a new langage today, it is far easier to generate C instead of ASM. "

  4. Re:C is primordial on How Relevant is C in 2014? · · Score: 2

    Then he must be in his mid-40s because I fully agree with him.

    C is almost ML because almost all features of the langage can be directly translated into a few assembly instructions. This is also one of the last languages that still provides full control over memory and pointers.

    C can be OO. It does not provide OO features such as inheritence or dynamic casts but they are easy to emulate with structs and macros. See forIf you want to create compiler for a new langage today, it is far easier to generate C instead of ASM. exemple the Gobject API. This is clearly not the most elegant way to do OO but it works and it can be as efficient a true OO langage.

  5. Re:hot topic ... as in Germany by now ... on Mathematical Trick Helps Smash Record For the Largest Quantum Factorization · · Score: 1

    I don't what you are smoking but you should try to stop for a while!

  6. Re:So worst case still classically exponential, bu on Mathematical Trick Helps Smash Record For the Largest Quantum Factorization · · Score: 1

    In a regular factorization all bits except the 1st and the last are basically unpreditable (in the sense that they have no generic and well defined properties that could help predict their value) so the probability of the number of identical (or different) N pairs follows the same rules than flipping N coins. In practice the number will be around N/2 with a very strong probability.

    For N=1000, see for instance the graph for 'output 1000d2-1000' in http://anydice.com/program/4d4...

    The probability that you get something outside the range 450-550 is almost zero so any method based on the idea that some factorizations will have a lot or few identical pairs is unusable in practice.

  7. Re:5th Admendment? on 18th Century Law Dredged Up To Force Decryption of Devices · · Score: 1

    Indeed but as in many paradoxes, the problem is not in the answer but in the question.

    Trying to answer a boolean problem (with true or false anser) specified using fuzzy properties is usually not possible.

    Is that object hot?
    Is that object blue?
    Is that object big?
    Is that object heavy?

    Those questions are all ambiguous and they can all lead to (fake) paradoxes similar to the chicken and egg. For all of them the only sensible answer is: How do you define hot/blue/big/heavy?

    A computer in an old movie would just say "Not enough data to compute"

  8. Re:5th Admendment? on 18th Century Law Dredged Up To Force Decryption of Devices · · Score: 2

    This is more complex than that. Look at that page

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

    According to your definition of a chicken:
      - common pheasants can breed with chicken and so are chicken
      - capercaillies can bread with common pheasants so capercaillies are also chicken
      - black grouses can bread with capercaillies so black grouses are also chicken
      etc

    Of course, this page only mention known hybrids and a several more are likely possible and some may even occur naturally in the wild.

    So at the end, with that definition, it is likely that a duck, a struthio, a penguin and most birds are also chicken.

       

  9. Re:5th Admendment? on 18th Century Law Dredged Up To Force Decryption of Devices · · Score: 1

    I see no paradox. The problem is just that chichen and heap of rice are not well defined concepts. We, humans, like to categorize thing using words but most of them are ambiguous. Give a proper definition of a chicken, something that can be tested non-ambiguously, and the chicken & egg paradox will disapear.

    For example, we choose take a reference chicken, sample its DNA and specify that any living animal with less than 1% differences qualifies as a chicken. One of the (female) ancestors of our reference chicken would not qualify as a chicken. Since we are human, let name this animal a chickenausor. So that chickensausor laid a chickenausor egg from which came out a chicken (according to our definition). So the chickenausor came first, followed by the chickenausor egg, the chicken and finally the chicken egg.

  10. Re:7 years ago on Hawking Warns Strong AI Could Threaten Humanity · · Score: 1

    The end of Moore's Law may actually be a necessary step before a true AI can be created. During the last 50 years there was no real points into changing the basic architectural concepts of microprocessors. The latest Core-I7 is fundamentally not different than my very first Z80 from 1985.

    The CPU concept is incredibly efficient but it is remains stupid. A CPU is nothing else than an automate executing sequences of basic operations as fast as it can. With the end of Moore's Law, the only way to continue improving will be by changing everything.

    I do not know what the first true practical AI will look like but I would be surprised if it as not based on CPUs.

    Don't read me wrong. I am not saying that CPUs will disapear but that AIs may be based on something else such as neuronal networks or Isaac Asimov's positronic brain.

  11. Re:7 years ago on Hawking Warns Strong AI Could Threaten Humanity · · Score: 1

    So he was basically saying that AIs will be psychopath and so not dangerous. I have my doubts.

    Also I do not see any scientific reason for an AI to not have any emotions.
    This is typically the kind of argument is usually the results of a ego-gratification sophism:

        (1) Human have emotions
        (2) AI are not humans
        (3) so AI have no emotions.

  12. Re:Ok the simple math. on Obama Offers Funding For 50,000 Police Body Cameras · · Score: 2

    A GoPro is probably overkill. The purpose is just to record the events around the cop. A low resolution such as 640x400@10fps in B&W is probably sufficient.

    Such a device could record hours of videos a day per GB and its electric consumption would only be a fraction of the GoPro.

  13. Re:Wallet required on The Cashless Society? It's Already Coming · · Score: 1

    All forms of identification could easily become entirely digital.
    The required technologies already exists.:A file signed using a private/public key system such a PGP.
    That file could contain some biometrical informations that could be used on the field to identify the owner (photo, retina pattern, fingerprints, ADN, ...)

     

  14. Re:Ditch the DSLR on Who Needs NASA? Exoplanet Detected Using a DSLR · · Score: 1

    The moon does not qualify as low light beause it is directly illuminated by the sun.
    Simply speaking it is as bright as any outdoor scene under broad day-light.

  15. Re:And making my link a link: on Who Needs NASA? Exoplanet Detected Using a DSLR · · Score: 1

    Also, from the Wikipedia page on HD189733b:
          - HD 189733 b orbits its host star once every 2.2 days
          - This planet exhibits one of the largest photometric transit depth (amount of the parent star's light blocked) of extrasolar planets so far observed, approximately 3%.

    What he did was cool but this exoplanet is probably one of the easiest to detect.

    There a plenty of nice things that can be done with a DSLR and a cheap lens and none of those will ever replace NASA or real astronomical equipements that can be hundred or thousands of times more efficient (and expensive). For instance you can make nice pictures of andromeda http://www.budgetastro.net/ast... or see some of the satellites of jupiter http://www.weasner.com/co/Repo...

  16. Re:$800k? on Taxi Medallion Prices Plummet Under Pressure From Uber · · Score: 1

    It's a financial bubble so it does not have to be connected to reality.

    However, a single medaillon is probably shared by multiple drivers working 24/24-7/7.
    If a medaillon is leased $100/day then the income would be 365*200 = $73K so about 4.5% of 800K.
    With $200/day that would be 9%.

    I do not know if those numbers are realistic but they could make sense especially if the taxi driver is not paid very well.

    In Paris, a taxi driver license costs around €250K ($310K) or it can be rent for about 100€/day (~125$).

     

  17. Title is bogus on France Wants To Get Rid of Diesel Fuel · · Score: 5, Insightful

    There is nothing in the article about France trying to kill diesel. The purpose of those measures are to get rid of OLD DIESEL CARS that are well known source of pollution (for the particules).

  18. Apology on "Barbie: I Can Be a Computer Engineer" Pulled From Amazon · · Score: 1

    There is this wondeful sentence in the "Barbie" apology at the end of Pamela Ribon's Blog:

    > We believe girls should be empowered to understand that anything is possible and believe they live in a world without limits.

    That sentence leaves me almost speechless. Welcome to faryland!

  19. Re:UOM conversion help, please on Researchers Discover Ancient Massive Landslide · · Score: 1

    And in Library of Congress?

  20. Re:Water Vapourware on Bicycle Bottle System Condenses Humidity From Air Into Drinkable Water · · Score: 1

    An independant team of scientists just performed a complete study of the device and they noticed gamma rays consistent with cold fusion.

  21. Re:How much does the device weigh? on Bicycle Bottle System Condenses Humidity From Air Into Drinkable Water · · Score: 4, Funny

    Normal water is too heavy when travelling by bike so I always bring dehydrated water instead.

  22. Re:Go back in time 5 years on Debian Votes Against Mandating Non-systemd Compatibility · · Score: 1

    So the method to set a static IP address on the BBB is

      (1) set-nameservers [nameserver*]
      (2) set-ipv4-method manual [netmask] [gateway]

    How is that complex? I do not know Connman so it may very well have other problems but this is clearly not one of them.

    The problem, if there is one, is either you or the documentation of Connman for the BBB.

  23. Re:Let's talk about the Sun... And Mars too on UN Climate Change Panel: It's Happening, and It's Almost Entirely Man's Fault · · Score: 2

    1/2 of a percent (so +/-0.005) is not an increase but the distance between the maximum and the minimum observed since 1978.

    Looking at the trend over multiple years (the dark red line), I only see the regular 11 years cycle with a variation of about 1/10 of a percent. The variation to the trend if any is well below that value.

  24. Re:Let's talk about the Sun... And Mars too on UN Climate Change Panel: It's Happening, and It's Almost Entirely Man's Fault · · Score: 3, Informative

    http://www.climate4you.com/Sun...

    On that graph, the solar irradiance varies from 1363 to 1368 since 1978 so under 1/2 of a percent.
    That is indeed not really significant.

    The sun activity cycle of 11 years is also very visible but it more in the range of 1/10 of a percent.

  25. Small Bash alias for timezone conversion on Ask Slashdot: Where Do You Stand on Daylight Saving Time? · · Score: 1

    Here is a convenient BASH alias I use to perform timezone conversion


    tz () {
            local D T tz
            D="$*"
            [ -n "$D" ] || D=now
            T=$(date -d "$D" +%s) || return
            for tz in "Europe/Paris" "America/Chicago" "America/Los_Angeles" "Asia/Tokyo" ; do
                    A=$(LC_ALL=C TZ="$tz" date -d "@$T" +"%c %Z (UTC%:z)")
                    printf "%-20s %s\n" "$tz" "$A"
            done
    }

    Give it any time specification supported by the 'date' command and it will print the local time in all selected timezones:

    # tz tomorrow 10:00
    Europe/Paris Mon Nov 3 10:00:00 2014 CET (UTC+01:00)
    America/Chicago Mon Nov 3 03:00:00 2014 CST (UTC-06:00)
    America/Los_Angeles Mon Nov 3 01:00:00 2014 PST (UTC-08:00)
    Asia/Tokyo Mon Nov 3 18:00:00 2014 JST (UTC+09:00)
    # tz now
    Europe/Paris Sun Nov 2 14:49:34 2014 CET (UTC+01:00)
    America/Chicago Sun Nov 2 07:49:34 2014 CST (UTC-06:00)
    America/Los_Angeles Sun Nov 2 05:49:34 2014 PST (UTC-08:00)
    Asia/Tokyo Sun Nov 2 22:49:34 2014 JST (UTC+09:00)
    # tz dec 24 23:59
    Europe/Paris Wed Dec 24 23:59:00 2014 CET (UTC+01:00)
    America/Chicago Wed Dec 24 16:59:00 2014 CST (UTC-06:00)
    America/Los_Angeles Wed Dec 24 14:59:00 2014 PST (UTC-08:00)
    Asia/Tokyo Thu Dec 25 07:59:00 2014 JST (UTC+09:00)

    Output is a bit screwed up by Slashdot.