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User: hamster_nz

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  1. Re:Which Linux users really care and why? on Linux Subsystem Files To Become Accessible via Windows File Explorer (zdnet.com) · · Score: 1

    My employer mandates Windows OS for corporate laptops. Not my data, not my call.

  2. Re:Which Linux users really care and why? on Linux Subsystem Files To Become Accessible via Windows File Explorer (zdnet.com) · · Score: 1

    I use WSL quite a bit on my work laptop. Why?

    - It complies with our security policy

    - I can use things like linux-based microcontroller tool chains exactly as I would on my Linux boxes at home

    - I don't have problems with USB passthrough with serial adapters

    - I can awk, grep, cut and sed files in my windows file system without any file sharing hassles

    - I can use gcc to build little utilities as needed

    - ssh and scp are easier to use from WSL

    - it is always there - one click away on the task bar

    Sure, it has a few tiny foibles, but is just simpler than using a VM.

  3. Some history here.... on Drug Firms Shipped 20.8 Million Pain Pills To West Virginia Town of 2,900 (foxnews.com) · · Score: 1

    Just had to see what this place looked like - "a pharmacy in an a shack" wouldn't be too far from the mark.

    Also saw this on the search query:

    n the recent case of Tug Valley Pharmacy et al v All Plaintiffs (2015 W.Va. LEXIS 673 [May 13, 2015]), the West Virginia Supreme Court weighed in on public policy concerning the diversion of controlled substances. The ruling allowed substance abusers to sue the prescribers and pharmacists who supplied the medications, even though the patients acknowledged engaging in an array of illegal activities including criminally acquiring narcotics by misleading physicians and pharmacists, doctor shopping, and ingesting the medications in amounts greater than prescribed.

    http://www.pharmacytimes.com/p...

  4. MIT's Scratch is great. on Ask Slashdot: How Can You Teach Programming To Schoolchildren? · · Score: 2

    I can't recommend scratch highly enough. https://scratch.mit.edu/ is great. You can do some pretty neat things with it. Here are some projects you can work through http://projects.codeclubworld....

    I tried to teach some Javascript game programming to a teen, but the lack of geometry skills (e.g. sin(), cos()) and physics ( e.g. d=at^2/2) made it tough going to fire cannonballs around. There is most likely a library that could hide it all, but why would you?

  5. Re:Stopping cheating on programming tests on As Computer Coding Classes Swell, So Does Cheating (nytimes.com) · · Score: 1

    BEST COMMENT EVER

    That solves that problem.

  6. Re:Sold Out Already on Raspberry Pi 3 Rolls Out With Faster CPU, On-Board Wi-Fi, and Bluetooth · · Score: 1

    Still plenty here: https://shop.pimoroni.com/prod...

    I had no problems ordering my Zero from them on release day too.

  7. Re:adults across the U.S. are strapping on helmets on Why Biking Injuries and Deaths Are Spiking In the US · · Score: 1

    Not so fast... There is research that indicates that people putting helmets on changes driver behaviour.

    http://www.bath.ac.uk/news/art...


    Cyclists who wear protective helmets are more likely to be struck by passing vehicles, new research suggests.

    Drivers pass closer when overtaking cyclists wearing helmets than when overtaking bare-headed cyclists, increasing the risk of a collision, the research has found.

    Dr Ian Walker, a traffic psychologist from the University of Bath, used a bicycle fitted with a computer and an ultrasonic distance sensor to record data from over 2,500 overtaking motorists in Salisbury and Bristol.

    Dr Walker, who was struck by a bus and a truck in the course of the experiment, spent half the time wearing a cycle helmet and half the time bare-headed. He was wearing the helmet both times he was struck.

    He found that drivers were as much as twice as likely to get particularly close to the bicycle when he was wearing the helmet.

    Across the board, drivers passed an average of 8.5 cm (3 1/3 inches) closer with the helmet than without

    The research has been accepted for publication in the journal Accident Analysis & Prevention.

  8. Use storage level services. on Ask Slashdot: How Do You Store a Half-Petabyte of Data? (And Back It Up?) · · Score: 1

    If you want to keep your data on-site, unless your already have a lot of the infrastructure that you can leverage the path of least resistance is to use something like a NetApp Filer.

    For backups it can create snapshots on a schedule (hourly/daily/weekly), then either replicate them to a second physical storage unit (hopefully at a different site) or present them to your backup solution.

    Using the file services on the NetApp will also provide a solution to your "how do I present it to the storage consumers" question - iSCSI, CIFS with domain integration, NFS, Fibre Channel... You also get storage level de-duplication and compression, if that works for your data.

    Of course you will pay what seems like a lot for it, but it does solve a lot of your problems in one unit. How much will it save in servers, backup capacity, a multi-drive tape library, daily visits to the server room to reload tapes and so on.

    But if your data center isn't up to providing the level of availability you want then any hardware solution is going to be problematic - large storage systems do not like having the power pulled out from under them. Minimum is dual-redundant UPS power and fault tolerant cooling, or you will most likely have problems.

  9. Why use FPGAs? Bandwidth! on New Network Design Exploits Cheap, Power-Efficient Flash Memory · · Score: 1

    A bottom of the range FPGA - 200 I/O pins, with 216.5 Gb/s for $20.

    And the one I have sitting on my desk at the moment has about 500 Gb/s over about 300 pins..

    You can't get that on an ARM CPU.

  10. The ultimate ugly hack? on C Code On GitHub Has the Most "Ugly Hacks" · · Score: 5, Insightful

    Fast inverse square root (sometimes referred to as Fast InvSqrt() or by the hexadecimal constant 0x5f3759df) is a method of calculating x1/2, the reciprocal (or multiplicative inverse) of a square root for a 32-bit floating point number in IEEE 754 floating point format.

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

    Anybody got any better Ugly Hacks to share?

  11. There might be a bit more to it. on C Code On GitHub Has the Most "Ugly Hacks" · · Score: 5, Insightful

    C coder know a ugly hack when they see one, and when they write one.

    I would conjecture that nearly every line of Perl scripts is an ugly hack, so nobody bothers to add a comment... 8-)

  12. Re:Learning programming through motivation. on Ask Slashdot: How To Introduce a 7-Year-Old To Programming? · · Score: 1

    Gosh, in my day proto-programmers would quibble those facts:

    "But I never drink water, only Jolt cola, yet I'm still alive!"

    "But I wager that I can go longer than 7 days with water - Soup is a food, so food alone it is for me"

    "Is an ice cube food or water - it is after all a solid", quickly followed with "well, I'ld like to see you last longer than 7 days on just steam".

    "Can I drink from the dehumidifier i my room? Can I use evaporation to purify my urine?"

    "what do you mean 'and' in 'without water in 7 days, and without food in 14 days? Don't you mean or? After all you can only die once"

    "Sorry Dad, I've learnt how to pick locks at the geek club - do you want me to show you?"

    "But If you eat a lot of fruit and vegetables, you can replace lost moisture from just your food alone, and never need to drink" ....

  13. Re:How is maintenance performed? on Former NATO Nuclear Bunker Now an 'Airless' Unmanned Data Center · · Score: 1

    Fire in a Bitcoin mine...

    http://www.coindesk.com/galler...

  14. Re:who cares how many children on AirAsia Flight Goes Missing Between Indonesia and Singapore · · Score: 1, Flamebait

    Let me guess, you don't have children? Come back in 20 years and see what you think then.

    I am sure that in the fullness of time you will understand why loss of ones so young is more of a tragedy.

  15. The obvious answer on Ask Slashdot: Non-Coders, Why Aren't You Contributing To Open Source? · · Score: 4, Insightful

    Could I contribute while mountain-biking? Could I contribute by ballroom dancing? Could I contribute while driving miniature steam engines in the park on Sundays? Could I contribute while acting in local Shakespeare plays? Could I contribute while woodworking? Could I contribute by going to the movies?

    It is simple, most people have hobbies that they enjoy spending their spare time on.

    Just because some people have a passion for Open Source and others find utility in it doesn't impart any sort of onus to assist development. Isn't that the ethos of Open Source - you can use it with no strings attached?

    You might as well ask the opposite - Why are there so few FOSS coders just dropping in at rest homes to talk to the elderly? Why are no FOSS coders painting murals in public spaces? Why are no FOSS coders picking up rubbish in the park? Why are no FOSS coders building mountain bike trails in the weekend?

  16. Re:Nonsensical explanation? on Nuclear Weapons Create Their Own Security Codes With Radiation · · Score: 1

    All I got from it was that they were going to use the radioactive material as a random number generator for securing communication between components, so nobody could hotwire it.

    Well, I think that is what was said!

  17. Dragon book. on Ask Slashdot: Programming Education Resources For a Year Offline? · · Score: 1

    If you only want to carry one slim book, I would recommend "Compilers: Principles, Techniques, and Tools" by Alfred V. Aho, Monica S. Lam, Ravi Sethi, and Jeffrey D. Ullman. It might be old skool, but there is sure to be enough ideas in there to keep you busy on cold nights.

  18. I can't stand the phrase "so-called"! on First Experimental Demonstration of a Trapped Rainbow Using Silicon · · Score: 2

    It has two completely opposite meanings:

    1: commonly named e.g. "the so–called pocket veto"
    2: falsely or improperly so named e.g. "deceived by a so–called friend"

    It drives me crazy!

  19. Wanted - seven dwarfs for a space mission! on NASA's HI-SEAS Project Results Suggests a Women-Only Mars Crew · · Score: 1

    That argument could be extended to suggest that crew should be only people with Dwarfism. Everything could be smaller!

    Then you could name the spaceship "Snow White", and sell the movie rights to Disney.

  20. Re:Well done team! on Axiom Open Source Camera Handily Tops 100,000 Euro Fundraising Goal · · Score: 1

    Bits... in my world comms is always in bits per second :-)

    3840 H pixels x 2160 V pixels x 24 bits per pixel x 300 frames per second = 59,719,680,000 bits per second

  21. Well done team! on Axiom Open Source Camera Handily Tops 100,000 Euro Fundraising Goal · · Score: 1

    I've had a few short chats with one of the members of the team, and the tech is simply gobsmackingly droolly. The data bandwidth required for readout from the sensors alone is massive - 300 fps of 4k video, even without deep colour is 20 x that of 1080p.(around 60Gb/s).

    Congratulations for what has been years of effort!

  22. Been there, done that.... on Slashdot Asks: How Prepared Are You For an Earthquake? · · Score: 2

    We had a 7.1 10 kms (6 miles) down the road... http://en.wikipedia.org/wiki/2...

    We had plenty of food and water, we were a bit cold as we didn't want to light the woodburner until we checked it out properly. Had a nice BBQ with the neighbours and enjoyed a bit of quiet time and early nights as power was out for three days.

    It hit at 4:35 am. However I still don't sleep approriately attired for running out of the house in the night, nor do I have shoes by the side of my bed for walking over broken glass. Most probably the two most important lessons right there (oh and don't put your bed beside a brick chimney, not that we do...).

  23. Re:Open FPGA? on Parallax Completes Open Hardware Vision With Open Source CPU · · Score: 1

    Can you give one example of Open Source Hardware that is "open hardware all the way down"?

    If I could make an "Open Source Hardware" design using the actual propeller chip, then sure this makes that design "even more open", and so is a good thing IMO.

  24. Re:Limited utility. on Parallax Completes Open Hardware Vision With Open Source CPU · · Score: 1

    Sure, but it is a big bonus for people who need a few custom periherals and a nice, open, stable controller with a good toolchain.

    Video processing? Audio processing? Driving oodles of servos? Driving oodles of Neopixels? Does your design need really tight feedback loops (e.g. high speed power control)?

  25. I think that they are two overlapping domains. on Math, Programming, and Language Learning · · Score: 1

    The best book I have ever read on DSP is "The Scientist and Engineer's Guide to
    Digital Signal Processing" - pdfs are on http://dspguide.com/. All of the sample code is in BASIC - yes, BASIC! I have successfully then gone on and implemented many of the ideas presented in many languages, and even in hardware. This highly useful maths can be presented in the what is arguably the worst of programming languages, and it is still very informative,

    Some important areas of programming have very little maths at all. For example math does not care if you just name all your variables "aaaaaa" through "zzzzzz" - the answer is just the same.

    In short both sides of the argument are wrong. Programming and math sit beside each other, with quite a bit of overlap. When working on problems that are in this overlap, you have a bias towards seeing it as solving maths with a programming tool, or programming with maths as a tool.