Slashdot Mirror


User: BitZtream

BitZtream's activity in the archive.

Stories
0
Comments
12,389
First seen
Last seen
Profile
(view on slashdot.org)

Comments · 12,389

  1. Re:SSH? on NSA Foils Much Internet Encryption · · Score: 1

    You do realize that the encryption provided by SSL is generally AES, and always symmetrical right?

    The asymmetrical portion is only for initial setup and authentication of who is on the other end, all of the encryption uses a symmetrical protocol.

    Asymmetric algorithms are far to processor intensive for stream encryption on a large scale. Your web browser would grind to a halt if you tried to use asymmetric encryption for the actual data streams.

  2. Re: SSH? on NSA Foils Much Internet Encryption · · Score: 0

    Wrong.

    With open source you have the POSSIBILITY of many qualified/knowledgable people looking at it. But they don't. They have real jobs that occupy their time that prevent them from parsing someone else's shitty code looking for bugs.

    The idea that OSS is secure because it is open just shows how ignorant you are of the world around you. The 'qualified' people have more important things to do than read your favorite, be statistically irrelevant software packages source code.

  3. Re:Works for me on NSA Foils Much Internet Encryption · · Score: 1

    Problem is, as everyone likes to ignore, most of the middle east is BEGGING US to do something.

    If the wikileaks cables showed the world anything it was the while countries in the middle east 'denounce' America in public, they secretly beg us to fucking help take out their trash.

    Funny how people ignore these things, but seem to be too fucking stupid to notice the edits in the whole collateral murder video.

  4. Re:OUCH on Man Killed By His Own Radio-Controlled Helicopter In Brooklyn · · Score: 2

    I don't fly 'at a park'.

    I don't fly toys.

    I fly small aircraft. The field I fly in is 30 miles outside the city, next to a lake at the local national park headquarters that requires a key to get within a mile of the airfield.. I've got 2.5 million in bodily injury coverage and a million in property damage coverage. (Standard AMA insurance coverage)

    We throw people the fuck out of the field if they do dangerous shit intentionally, and the club grounded me until they felt that the accident was truly a rare accident and not an indication of a systemic problem with the way I build my aircraft. They would throw me out just as fast if it appeared that I was lax or lazy and that lead to this incident occurring.

    If I intentionally flew over the flight line, I would have been immediately banned from the club.

    This isn't a joke to me douche bag, and I'm not flying one of the air hogs you bought from walmart.

  5. Re:OUCH on Man Killed By His Own Radio-Controlled Helicopter In Brooklyn · · Score: 0

    19 years old is still very much a child. Anyone who doesn't understand that is most likely still in their 20s.

  6. Re:OUCH on Man Killed By His Own Radio-Controlled Helicopter In Brooklyn · · Score: 1

    damnit, forgot to square the speed! I knew something was wrong with those numbers.

  7. Re:OUCH on Man Killed By His Own Radio-Controlled Helicopter In Brooklyn · · Score: 0

    So bother to read the article ... where it stated ... clearly ... the aircraft was a gas turbine.

    They also ALWAYS run a higher rotor speed due to turbine lag making it practically useless to use throttle in combination with higher pitch requirements.

    You have no clue what you're talking about. The most common heli is still and has been for the last 5 years or more, a raptor 30 with a 32-50 sized glow plug engine.

  8. Re:OUCH on Man Killed By His Own Radio-Controlled Helicopter In Brooklyn · · Score: 1

    So ... your club is an AMA member ... thats not a requirement. I know of no city where they have actually bothered to enforce any sort of issue like this. Raleigh NC certainly doesn't, though I wished it did.

    Card carrying AMA member here.

  9. Re:OUCH on Man Killed By His Own Radio-Controlled Helicopter In Brooklyn · · Score: 1

    Throw an ArduPilot in one of these aircraft and you fly on rails.

    I have a Titian mini flybarless (i.e. impossible to control without electronic stabilization by anyone but the best of the best) and its a rock thanks to an ArduPilot.

    I still think you are 100% correct about it though. The landing on a table is something I do with a 2 ounce toy I bought from the mall, not something I do with my actual aircraft. Again, 300-400mph rotor tip speeds should be enough for anyone to get the picture.

  10. Re:Toy? on Man Killed By His Own Radio-Controlled Helicopter In Brooklyn · · Score: 1

    Considering the hell itself probably cost upwards of 2k just on the airframe, its hard to call it a toy.

    It was a gas-turbine heli, they are the most expensive ones you can buy.

  11. Re:OUCH on Man Killed By His Own Radio-Controlled Helicopter In Brooklyn · · Score: 5, Informative

    Which is sad.

    Some facts about R/C Heli's in the same general class as the one that killed him:

    They weigh roughly 10-12lbs, this one was a gas turbine, so it likely weighed a little more.
    The rotors each weigh about 3/4 lbs, most of the weight being from lead added near the tips to facilitate autorotation.
    They can fly at speeds up to 100mph, though its unlikely he ever went over 30mph when doing 3d aerobatics.
    The rotor tips in non-aerobatic flight travel at about 300mph.
    In aerobatic modes, the rotor speed goes up by about 30% so you have reserve power, that brings them to nearly 400mph.
    Carbon fiber blades are used not because they are lighter (you really don't want lighter blades at that size), they are more rigid, flex is wasted energy and can cause tail boom strikes.

    Doing the math on the rotor blades, .325kg * 175m/s * 0.5 = ~28.4 the tips carry approximately 28 joules of energy assuming they don't separate from the rotor head.

    That in and of itself, not so impressive. If you get hit with the broad side of a rotor, it hurts like hell, but won't even bruise most people.

    But thats not what happens. Even if the rotor separates from the hub in a crash, they are aerodynamically stable. They are wings after all. They fly straight and true in almost every case with the weighted leading edge up front.

    Thats 28 joules of energy in what is basically a knife edge. It can easily severe a leg at the ankle.

    These are miniature aircraft. They are easily deadly.

    I've put multiple helis into the ground to avoid possibly hitting someone or something, some of the scariest experiences I've ever had were due to a out of control heli. The worst was where I didn't properly fasten the radio antenna and it got pulled into the rotor blade during inverted flight nearly directly over the flight line (where everyone stands to fly) at our local club. Nothing I could do at that point but watch it tumble towards the ground and yell at people to scatter. I was able to recover the aircraft when it got closer to me and without hurting anyone, but you can not imagine the fear people had as the aircraft was tumbling towards them.

    Jokes about this kid getting hurt are about as funny as jokes about the Shuttle Columbia's last re-entry.

  12. Re:that's silly. on GameFly Scores In Longstanding DVD Mailing Complaint · · Score: 1

    Yes, they did, that's the whole point GameFly was making. The USPS gave netflix special treatment for free. Not only did they not give it to GameFly, they ALSO charged GameFly more.

  13. Re:Bitcoin. on PayPal Freezes MailPile's Account · · Score: 1

    What world do you live in where 'Use Bitcoin' was ever a viable answer to anything more than silly sites that no one cares about? Its even more of a joke than paypal.

  14. Re:"Maybe?" on PayPal Freezes MailPile's Account · · Score: 2

    Okay, lets rephrase the question ...

    Why are you still using ebay? It hasn't been a worth while way to buy things since roughly 2006 or so.

  15. Re:Does Cisco hire morons? on Court Orders Retrial In Google Maps-Related Murder Case · · Score: 2

    No, they have a policy of having your data in at least 3 data centers, somethings are replicated more than that.

  16. Nothing unusual on What Marketers Think They Know About You and What They Really Do · · Score: 2

    Whats unusual about them asking you for your personal identifiable information for them to update their records, which then in turn they sell to advertiser, debit collectors and credit card companies?

    Are you really so stupid as to think this isn't benefiting them in multiple ways? I don't give this information to any random person off the street, why the hell would I give it to the exact people I don't want to have it?

  17. Re:Good job on What Marketers Think They Know About You and What They Really Do · · Score: 2

    Yea, nothing like clicking through ad-infested site after ad-infested site because the editors are too lazy to actually edit.

    WTF is the point of people like samzenpus and timothy? We have voting for getting stories promoted to the front page already ...

    I forgot, someone other than timothy has to be the one to post his stupid videos and dear diary entries to the front page.

  18. Re:Information is bad on New Smartphone Tech To Alert Pedestrians: 'You Are About To Be Hit By a Car' · · Score: 1

    Why?

    Personal responsibility. Get some.

    Even my dog knows better than to cross the street without looking having grown up in the city.

  19. Re:Natural selection at work on New Smartphone Tech To Alert Pedestrians: 'You Are About To Be Hit By a Car' · · Score: 1

    The best and the brightest would have looked before crossing the street. Its one thing to learn from language and accumulate knowledge (via language) ... that sets us apart from the rest of the animals on the planet ... if you get hit by a car because you were dicking with your phone, you clearly are missing the very thing that separates us from other animals, the ability to learn from others without actual experience.

    I'm not talking about letting some aboriginal Australian get hit by a cab in New York when he's never seen a car before. We're talking about morons with high tech devices getting ran over because they were too stupid to look where they were going.

  20. Stop polluting the gene pool on New Smartphone Tech To Alert Pedestrians: 'You Are About To Be Hit By a Car' · · Score: 2

    Can we please stop doing things to save people not worth saving? This is in the same class as putting warning labels on Lawn Mowers that you shouldn't pick them up and try to use them as hedge trimmers, or warning labels on cans of RAID bug spray. If you aren't smart enough to avoid these issues, you're just a drain.

  21. Re:Does Cisco hire morons? on Court Orders Retrial In Google Maps-Related Murder Case · · Score: 3, Informative

    It should be fairly easy to tell, its not like Google doesn't log EVERY FUCKING REQUEST.

  22. Re:Meh- almost just acknowledgement of status quo on MyOpenID To Shut Down In February · · Score: 3, Informative

    ...

    Running your own openid server is rather simple if you're willing to install some packages.

    For fucks sake, a simple google search results in the following first link: http://wiki.openid.net/w/page/12995226/Run%20your%20own%20identity%20server

  23. Buying a 'private cloud' from someone else on Amazon Hiring More Than a 100 Who Can Get Top Secret Clearances · · Score: 1

    is utterly fucking retarded.

    If its large enough to warrant Amazon hiring people for a 'private' cloud, its damn sure large enough to do it yourself and cut out the half assed middle man better known as Amazon.

    Their 'cloud' is by far the most expensive, poorest performing, highest downtime 'cloud' I've ever seen. You have to be a rather large moron to buy compute from Amazon. You want to serve files with S3, okay, its not 'the worst' so I can understand that choice, but as far as compute is concerned, they are the worst of the worst.

  24. Re:How shocking! on Nuclear Trashmen Profit From Unprecedented US Reactor Shutdowns · · Score: 1

    Seriously? US coal burning scares you that much? Do you have a heart attack when you bother to look at the nasty ass cloud from CHINA that is hundreds of times worse or does that magically get ignored?

  25. Re:The Vendee Globe is far more interesting. on Team Oracle Penalized For America's Cup Rules Violations · · Score: 1

    Hum, when you are rescued, YOU ARE responsible for the costs. No different than the EMS or fire department calls in your local neighborhood. These are not free services in any part of the world I'm aware of.