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User: Agripa

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  1. Re: This Is Considered News?? on Why Protesters In Cairo Use Laser Pointers · · Score: 1

    Did you mean the primaries that also use first past the post voting?

    It is turtles all the way down.

  2. Re:uh uz they're idiots on Why Protesters In Cairo Use Laser Pointers · · Score: 3, Interesting

    What makes it a laser is how the light is produced. In most cases the lasers available to consumers are just very bight lamps with narrow bandwidth, good collimation, and not monochromatic.

    It takes extra care to build a laser that produces only one frequency and even more care for the output to be coherent for any distance which is why holography and interferometry have problems with solid state lasers and gas laser are still used.

  3. Re:Whats the laser used in laser wars on Why Protesters In Cairo Use Laser Pointers · · Score: 1

    Just to expand on this, the vacuum of space can be several magnitudes better than the best vacuum you can produce on earth. How visible is your laser when it shines through a vacuum tube envelope?

    Even a nebula has a better vacuum than we can easily produce.

  4. Re:Quotation in summary come from.... (?) on WWVB Celebrates 50 Years of Broadcasting Time · · Score: 1

    Besides the new format breaking existing receivers that use a phase locked loop to decode the signal, Xtendwave, who may have had prior inside information, has patents covering the new format.

  5. Re:More Battery Issues on Best Buy Recalls MacBook Pro Batteries · · Score: 1

    Secondly, if the Apple branded battery squashed bits inside the Mac, you'd have a good warranty claim to replace the whole computer.

    This is the standard failure mode for lithium polymer batteries. When they are overcharged, deep discharged, or wear out with age, they expand into any available space distorting their prismatic form factor and crushing anything in the surrounding environment. Normally there is no available space since products are designed to hold the maximum possible battery volume. The batteries might as well include "self destructs after warranty period disabling product" as a marketing feature.

    PbSO4 cells do the same thing to a lesser extent but are rarely packed tightly so it is not as noticeable.

  6. Re:Run coward run!!!!! on Edward Snowden Leaves Hong Kong · · Score: 4, Insightful

    "We were just following orders" only fails if you lose the war.

  7. Re:This part doesn't bother me (I think) on Facebook and Microsoft Disclose Government Requests For User Data · · Score: 1

    I suspect the warrants were for specific content that would fall under even their tortured interpretation of the 4th amendment and one of them every 3 months or more often was for *all* of their metadata just like Verizon and other provided. They had a bigger stick to use on the telecommunication companies as Quest found out so dealing with them is easier.

  8. Re:read carefully on Facebook and Microsoft Disclose Government Requests For User Data · · Score: 2

    Not necessarily. There's good reason to capture all kinds of metadata ahead of time, and store it for a period of time; The most practical argument is that it reduces the cost of executing search warrants.

    The NSA also would not want anybody else to know what their search criteria is. They are at least as vulnerable to traffic analysis as anybody else. If they seize the data, err, I mean acquire and archive the data, then their searches are all local and away from prying eyes.

  9. Re:Bad data on The Smart Grid Has Arrived · · Score: 1

    Burglars or worse will be able to determine when you are at home or away from home.

  10. Re:I won't be buying one... on New Smart Gun Company Hopes To Begin Production This Summer · · Score: 1

    Law enforcement are usually (always?) exempted from civilian firearm restrictions. New Jersey's current smart-gun law exempts law enforcement.

  11. Re:I won't be buying one... on New Smart Gun Company Hopes To Begin Production This Summer · · Score: 1

    Practice in forming and maintaining the proper habits like *not* placing ones finger on the trigger before being ready to shoot is required in addition to training.

  12. Re:I won't be buying one... on New Smart Gun Company Hopes To Begin Production This Summer · · Score: 1

    Glocks do not quite fit into the single action or double action categories. During the slide operation cycle, the striker is cocked about half way which presumably leaves it with insufficient energy to fire the primer. Pulling the trigger cocks the striker the rest of the way before releasing it.

    Double action pistols generally have the same kind of trigger pull as a revolver.

  13. Re:I won't be buying one... on New Smart Gun Company Hopes To Begin Production This Summer · · Score: 1

    There are no accidental trigger pulls. There are only negligent trigger pulls.

    Do not put your finger on the trigger until you are ready to shoot.

    All of my holsters cover the trigger guard.

  14. Re:I won't be buying one... on New Smart Gun Company Hopes To Begin Production This Summer · · Score: 1

    *I* am the safety on the firearm I am holding.

  15. Re:Ah, now the delays make sense on TSA Accepting Public Comments On Whole Body Airport Screening · · Score: 1

    For the sake of argument in this case I will stipulate the above.

    Now how many self defense incidents in a home involving a firearm did not result in anybody being shot? None? Zero? You mean self defense using a firearm without anybody being shot does not happen? Your selected statistics completely miss the point.

    If only 13 shootings out of 626 were legally justified, then where are the arrest records for incidents where nobody was shot?

    What would their conclusion be if self defense with a firearm in general was taken into account?

  16. Re:Are they Sequels? on Disney Announces "One Star Wars Movie Per Year" Plan · · Score: 1

    Just as long as Jar Jar does not give away the home world.

  17. Re:He is no hero, no Aaron Schwartz, no EFF. on Dotcom Wins Right To Sue NZ Government · · Score: 1

    Just imagine what they could do if they controlled the prosecution, defense, and judge of a trial.

    The Peculiar Story of United States vs. Miller

  18. Re:That's not a drone on Drone Comes Within 200 Feet of Airliner Over New York · · Score: 1

    If you have an amateur radio license, then you could modify commercial part 15 equipment to operate under part 97 rules. In the past, many radio control hobbyist earned their licenses and operated under part 97 for improved reliability.

  19. Re:S100 anyone? on Will "Group Hug" Commoditize the Hardware Market? · · Score: 1

    Not all of the CPU cards for the Apple ][ had on board memory. The popular Z80 Softcard used the motherboard memory which made it slower than other Z80 expansion cards.

  20. Re:Not "instead of", but "in addition to" on UK ISP PlusNet Testing Carrier-Grade NAT Instead of IPv6 · · Score: 1

    The native IPv6 over IPv4 tunneling (protocol 41) is neither TCP nor UDP so most NAT implementations just ignore it which drops it. Some routers can permanently forward protocol 41 to a single private address (maybe through a DMZ setting) but that is only a solution if you already have a routable IPv4 address. In theory a NAT implementation could forward multiple protocol 41 connections automatically by tracking the source and destination IP4 addresses but I know of none that do and an end user would hardly need this.

    Some ISPs (at least AT&T U-Verse does this to me but Earthlink provisioned through Covad did not) drop protocol 41 unless it is going to a 6to4 relay (I assume their local 6to4 relay) so you can not use third party hosts for 6in4. This blocks SIXXS unless you tunnel using UDP instead of protocol 41.

  21. Re:Forgetting something? on TI-84+C-Silver Edition: That C Stands For Color · · Score: 1

    The calculators could not talk to each other (without a blatantly obvious cable).

    Maybe the TI ones could not. The HP-48 and similar sure could until HP lowered the sensitivity of the IR receiver and that was easy to restore.

  22. Re:No, not really... on Ask Slashdot: Tablets For Papers; Are We There Yet? · · Score: 1

    I just print out what I need on an 11x17 inkjet, mark it up, and store it in a 3 ring binder.

    My big desktop monitors, which work like crap in portrait orientation because of viewing angle problems, are not sufficient for most of the PDF files I deal with so no portable device is going to hack it. Even if I did find a tablet that could handle it, how am I going to view more than one page at a time?

  23. Re:Why do the phones have barometric sensors? on PressureNET 2.1 Released: the Distributed Barometer Network For Android · · Score: 1

    It will not matter in all but a very few specially designed buildings but the difference sure shows up in a pressurized aircraft. Either of my sensor equipped GPS units will show a GPS elevation of say 28,000 feet and a barometric elevation of 5 to 6 thousand feet when cruising.

  24. Re:For how long though? on Battery-Powered Transmitter Could Crash A City's 4G Network · · Score: 2

    Once these guys get the attention of the network operator, they'll be found quickly.

    I am not so sure about that. I have a lot of experience in ham radio foxhunting from both the hunting and hiding aspect. For all but the most difficult hunts, the hider has specific limitations which must be followed in aspects like location and timing. Even with those restrictions, on several occasions I and others were able to hide transmitters which, while readily receivable, were all but impossible to find by the varsity of the Southern California foxhunters.

  25. Re:For how long though? on Battery-Powered Transmitter Could Crash A City's 4G Network · · Score: 2

    The base station antennas do not have perfect rejection outside of their main lobe so given proximity or reflections, a single transmitting antenna will be able to hit all of them simultaneously.

    Given the type of attack discussed, it may not even be necessary if a resource in common too all of the base station's transceivers can be depleted by accessing only one antenna sector.