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User: cloude-pottier

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  1. Summary is patently stupid on Arduino Goes ARM · · Score: 2
    First off, the SAM3U is based on Cortex-M3 only, which can't run the full 32-bit profile of the ARMv7 instruction set... rather, it is exclusively capable of executing the Thumb-2 instruction set, which are 16-bit instructions with a handful of 32-bit instructions. This is misleading, since it means that conventional ARMv5 or even ARMv7 code targeted towards the Beagleboard (say) will not work on a Cortex-M3 part.

    Second of all, why the hell would Intel have something to fear from a 96 MHz Cortex-M3 part? This makes no sense, since this isn't even a segment Intel is actively pursuing. What might be competitive with Intel's offerings could be something like an Cortex-A15 part (which AFAIK there are none of on the market as of now) or even a Cortex-A9 part with some of the low-end Atoms. However, the Cortex-M3 definitely has absolutely nothing to do with any of Intel's offerings, so this clearly demonstrates a lack of understanding of how microprocessors work in the market (and how ARM and something like Arduino falls into the real-world marketplace) on the part of the submitter.

  2. So, uh, who here lives in Manhattan? on NYC Mayor Wants Traffic Camera On Every Corner · · Score: 2

    Not surprisingly, the comments on this item are full of unwarranted panic and claims of Big Brother coming to a corner near you. I live in Manhattan, and I would welcome speed cameras and traffic light cameras. These are cameras intended to catch people who are violating traffic law, which makes them an enormous hazard on the crowded streets of the city. Cycling in NYC is basically running the gauntlet (fortunately, Central Park is a bit of a haven for cyclists and pedestrians), and reckless drivers are a hazard every day on the streets as a pedestrian. I really think that some deterrence would be an excellent thing for Manhattan and would encourage people to drive much more safely. I'd say they should go so far as to do the same thing for cyclists who disobey the law, as well.

  3. Rolling back? on Egypt Coming Back On the 'net · · Score: 4, Funny

    I imagine that Egypt's ISPs tried cutting over to IPv6-only infrastructure. This is all just a coincidence, nothing to do with the protests. I'm glad they've rolled back to IPv4 though, we can't be depriving people of access to Twitter and Facebook.

  4. Interesting Sensors... on Formerly Classified Global Warming Spy Photos Released · · Score: 1

    While the images seem to be highly decimated, there's definitely two different sensor types being used. One is definitely visible light (the cloudy ones are obvious, but less obvious is the way the water appears in a read/NIR image channel, which I imagine is the range we're looking at). The other is most likely a Synthetic Aperture Radar (SAR). This becomes apparent when looking at ship wakes as well as looking at the structure of the surface of the water. Additionally, the telltale signs of speckle are present in the SAR images.

    If you want to see some similar-looking, but civilian-produced images, I'd recommend checking out TerraSAR-X.

    While I can't do analysis on the images (they're too highly decimated, have been orthorectified/geocoded, so a lot of the original signal structure has been lost), I'd guess based on artifacts I've seen that the SAR images are decimated by a factor of 4 (though that is just a gut feeling).