Slashdot Mirror


User: confused+one

confused+one's activity in the archive.

Stories
0
Comments
3,338
First seen
Last seen
Profile
(view on slashdot.org)

Comments · 3,338

  1. Re:Power vs. Energy on World's Biggest Battery Switched On in Alaska · · Score: 1

    That's an average used by the power industry. It's averaged over time (24 hours), so it includes the time when you're sleeping and when you're not home (at work?). Peak usage of a typical home in the U.S. can get into the 10's of KW. (typical home fed by 60Amp main --> 14.4kW peak before tripping the breaker).

  2. Re:semi-offtopic question on World's Biggest Battery Switched On in Alaska · · Score: 1
    first, measure the current and you'll have part of the answer.

    Second, you're talking about two different things. There's run-time (a measure of total power stored -- wattage) and VA (a measure of current capacity). You can't take a 350VA UPS and run three computers off of it for 10 seconds just because it says it will power one computer for 5 minutes. The instantaneous current requirements will exceed the capacity of the circuitry in the UPS and burn it out.

  3. Re:Quick question on World's Biggest Battery Switched On in Alaska · · Score: 1
    Most of the time, these calculations are done assuming ~1kW per home. i.e. if someone says "the plant uses as much power as 10,000 homes" then they mean it uses 10MW.

    We all know it's flawed; it's based on statistics of the average (over some time) usage.

  4. Re:No,the real question is... on World's Biggest Battery Switched On in Alaska · · Score: 1
    what would happen if you dropped a wrench down inside this thing

    what wrench?

  5. Re:And the contract goes to... on World's Biggest Battery Switched On in Alaska · · Score: 1

    Since the cadmium is sealed in little steel cylinders and will be sent (by law) to a recycler when "dead," I can't see how this would be a problem. Not much worse than having a few thousand gallons of diesel fuel in storage for the generator...

  6. Re:Tune in next week... on New Low Bandwidth Denial of Service Attacks · · Score: 1
    Sshhhhh. Quiet man, you're gonna give away all my secrets. Do you know how easy it is to find Uranium or Thorium; but, how hard it is to hide it. Damn man, now they're gonna be looking for me...

    Note to self: Must shield hidden reactor in basement better.

  7. Not gonna happen on Building a Custom Laptop to Your Specifications? · · Score: 1

    It's mostly custom proprietary hardware. your choices are limited.

  8. Re:Am I the only one... on Apple Issues New G5 Benchmarks · · Score: 1

    They're still running G3's and for what they're charging, I can buy Apple hardware.

  9. Re:One thing that surprises me... on Close Mars Means Close-Up Pictures · · Score: 1

    Because using chemical rockets it's a year long trip each way. It would cost 100's billions to build and launch. And in order to have a landing today, they'd have to have started working in the '80's.

  10. Re:sharpest ground-based images of Mars to date on Close Mars Means Close-Up Pictures · · Score: 1

    surface temperatures on Venus exceed melting temp of lead... It's not easy to build electronic devices that can survive on the surface when all the solder, gold interconnects, etc. melts.

  11. Re:Exploitable mineral content on Close Mars Means Close-Up Pictures · · Score: 1

    I predict that the first time someone can prove there's ktons of gold ore (or the like) in one of those asteriods, industry will become very interested

  12. Re:Search for life in Europa instead on Close Mars Means Close-Up Pictures · · Score: 1

    There's plenty of water on Mars. It's just not liquid. We aren't sure if Europa is solid or liquid under the surface; although, many believe it's liquid. That's assuming tidal heating due to living in Jupiter's gravity well.

  13. Re:Communication on Columbia Accident Investigation Board: Final Report · · Score: 1

    They're making physics students take a communication class now -- seems we were misunderstood too often...

  14. Re:Time to shrink NASA on Columbia Accident Investigation Board: Final Report · · Score: 1

    Ever heard of Prometheus? It's a nuclear propulsion system... It's been funded.

  15. Re:The "Culture of NASA"???? on Columbia Accident Investigation Board: Final Report · · Score: 1

    Except, you can't go to the suit saying "Our doors are always open" You MUST go through the chain of command -- your supervisor, then his supervisor, and so on. Otherwise, you're not playing by the rules and are punished. Any one in the chain can decide to act / ignore your request.

  16. Re:Ever heard of OBD-III? on UK to Put Monitors in Every Car? · · Score: 1

    many cell phones already have gps capability so that 911e can find you when you're in an accident on "I-xx somewhere after exit n"... When I looked it was around 60% of the phones that had GPS

  17. Re:Ever heard of OBD-III? on UK to Put Monitors in Every Car? · · Score: 1

    Good reason to drive "recycled" cars. It costs less to do a proper restoration on a classic than it does to buy a new car today anyway...

  18. Re:wait a minute... on Sci-Fi Movies and 'Bad Science' · · Score: 1
    How do you now see a fire truck? Drank much?

    btw, fire trucks are heavy. It probably broke several bones in her foot.

  19. Re:Err why ? on Netgear Routers DoS UWisc Time Server · · Score: 1
    Just wanted to point out that they didn't have a battery backup or clock.

    It would be important that the routers verify the time for the sake of logs and packet filtering. So, I'd expect it to update from somewhere. I understand it could extract the time from the DHCP handshake process (assuming the server's clock is correct).

    Most microcontrollers (and the Pentiums) have a built in timer/counter. It's easy to simulate a clock by refering to a known time, the count at that time, and the current count. I do this in my code on Windows machines because it's more reliable and accurate. See QueryPerformanceCounter()

  20. Re:Netgear, dlink, etc on Netgear Routers DoS UWisc Time Server · · Score: 1

    That works for you. Netgears target audience for the offending product(s) are the average home user who's been told they need a firewall/router; but, may not really understand what the damn thing does... It's a $40 device.

  21. Re:How do you get the router fixed? on Netgear Routers DoS UWisc Time Server · · Score: 1

    I'm a programmer and I don't read logs unless something breaks.

  22. Re:DoS on Netgear Routers DoS UWisc Time Server · · Score: 1
    Yes, and you should be getting your bandwidth bill in the mail any day now : )

    Do the math, if wisc.edu doesn't respond, your router is sending 197MB of traffic outbound per month in queries...

  23. Re:Who pays? on Netgear Routers DoS UWisc Time Server · · Score: 2, Interesting
    It seems UofW is putting a "redundant fault tolerant server" at the border of their network to handle the traffic. Perhaps, Netgear should compensate them for the cost of the machine and the bandwidth...

    Just a suggestion.

  24. Re:Err why ? on Netgear Routers DoS UWisc Time Server · · Score: 1

    Read the analysis at wisc.edu. The netgear routers don't have a clock or battery backup. They MUST go out to a timeserver when booted, to find out what the time is.

  25. Re:Wierd priorities on Wiring A Vintage Teletype To The Internet · · Score: 1

    Vacuum tube interface. They are called IBM 650 computers...