Slashdot Mirror


User: FrankDrebin

FrankDrebin's activity in the archive.

Stories
0
Comments
443
First seen
Last seen
Profile
(view on slashdot.org)

Comments · 443

  1. Re:does this remove energy from the current? on Off Grid Via Slow Moving River? · · Score: 5, Interesting

    yes, but just momentarily

    Huh? Let's not forget the law of conservation of energy. Of course a waterwheel/generator takes energy from the river as it puts out electrical energy. There is nothing "momentary" about it.

    But this energy is otherwise "lost" to heat as the water flows downstream anyway. IIRC it was Joule (whose energy scale we use today) that originally did the science on waterfalls, showing the water temerature at the bottom of the falls is higher than at the top. As water flows downhill, it pummels into itself, and the gravitation potenital energy is converted to heat.

    A waterwheel simply takes some of this energy and converts it to rotation instead of heat. With a waterwheel in place, the temperature of the water will be ever-so-slightly cooler downstream.

    The downstream reservoir has a level, and it is the difference between this elevation and the tailrace (water exit) elevation that determines the amount of energy the hydro plant can extract. The difference is called "head" (I kid you not).

    So the energy of the water used by a waterwheel is not "stolen" from the downstream plant... because it would have already been "lost" to heat as it reached the reservoir anyway.

  2. MCP! on Make Your Own TRON Costume · · Score: 1

    Server Error in '/' Application.
    <snip>
    Line 19: ldr = MCP.GetDR("SELECT tsDocuments.*, Users.userLogin, Users.userFirstName, Users.userLastName, Users.userEmail FROM tsDocuments INNER JOIN Users ON tsDocuments.docCreator = Users.userID WHERE docID = " & lintID)
    <snip>
    Version Information: Microsoft .NET Framework Version:1.1.4322.573; ASP.NET Version:1.1.4322.573

    Clearly this guy was using the MCP for his webserver, and Slashdot has about the same effect as a well-aimed deadly disc.

  3. Next Campaign Ad on Bush Says Americans 'Ought to Have' Broadband and a Pony by 2007 · · Score: 2, Funny

    Can you ping me now? Good.

  4. Re:88 'feet'?! You mean Mars hasn't gone metric?! on Spirit Rover Makes Longest Trip Yet · · Score: 1

    We are on a path to pollute Mars with our space probes, rocket fuel, and eventually lifeforms from microbes to humans. Dear God in heaven, please, do not let us pollute it with the Imperial measurement system.

  5. Re:Details on Ethanol to Hydrogen Reactor Developed · · Score: 1

    I would have expected CNN to give the actual chemical by-products

    Yeah I wondered the same thing. Where does the carbon go? It must at least be a waste produce of carbon solid (graphite, whatever), or more likely CO2. You can make some very nasty chemicals with C,H, (and O), like benzene. It's quite irresponsible not to mention the byproducts.

    If we assume that H2O and CO2 are the byproducts, at least the CO2 is part of an atmospheric cycle, originally absorbed by the plants as they grow, as opposed to fossil fuels which come out of the ground.

  6. A Question on The Simpsons Movie · · Score: 1

    With the jump to the silver screen, will Bart continue do his own stunts?

  7. iTunes on Good Demo System For A High-Bandwidth Link? · · Score: 1

    Download each and every frickin' iTunes track in 12 minutes.

    Apple claims to have 500,000 tracks available at iTunes. Assume these are 5MiB each. Total is 250 GiB, or 2000 gigabits. Total download time @2.5 Gbps = 800 seconds, or about 12 to 13 minutes.

  8. Re:How is this relevant? on Opera Browser Creators Planning IPO · · Score: 2, Insightful

    The Norwegians feel about the Swedes much the same way the Americans feel about Canadians.

    Given that Norway is smaller in population but richer in resources (ie. North Sea oil & gas) than Sweden, I'd say it's more like the way Canadians feel about the Americans.

    Although it could be construed as insulting to any one nationality, the fact is that to the rest of the world, there's little distinction between Canadians/USAmericans and Norwegians/Swedes.

  9. Alien Abduction on The Impact of Technophobes · · Score: 1

    I could swear when I first looked the headline was "Impact of Technoprobes". Thought I accidently clicked Art Bell instead of Slashdot.

  10. A few quotes from other film distributors... on Pixar Drops Disney To Find a New Studio Partner · · Score: 4, Funny

    mine Mine mine MINE mine Mine

  11. Re:I dunno.. on Linux Headed For Smartphone Domination? · · Score: 1

    I really don't understand why the same old jokes get modded up to 4 or 5 "funny" for months or even years

    You may have unwittingly kicked off a new trend of funny-bashing-karma-whores getting consistenly modded up to "insightful".

  12. D'OH on Is Your Silver-based Thermal Paste Really Silver? · · Score: 1

    Overhead at JPL when engineers realized they used OCZ Ultra II Premium Silver Compound on Spirit.

  13. Re:Legal implications? on Gamecube Linux Port Announced, In Progress · · Score: 1

    booting these sort of things without paying royalties/licensing a devkit usually involves some form of copyright or trademark violation

    If I follow your logic, it should be illegal to watch DVDs on Linux (since DeCSS contains the "copyrighted" Xing key), and all PCs other than true blue IBM have illegal BIOSes (since they were derived from BIOS reverse engineered by Compaq). Even the draconian DMCA has clauses covering reverse engineering for compatibility.

    Worried about SCO? Sheesh, that's exactly what those fools want! Jon Johansen among others had the smarts and courage to stand up against those who would control HIS DVD player. I say kudos to the community for opening up THEIR GAMECUBES to uses other than a closed, game sales channel. I also must point out that it is illegal to copy copyrighted games. Please, do not do this.

  14. Re:$29,500 on Rumors of iPod mini, 100 Million Songs, Xserve G5 All True · · Score: 1

    Methinks Jack Valenti has found something to do with his golden parachute.

  15. SCO Bait-And-Switch on SCO Gives Notice To 6,000 Unix Licensees · · Score: 2, Insightful

    So SCO is demanding certification under a provision of existing agreements stating the Unix licensee must answer compliance queries, at most anually. If I got one of these letters, I would answer... only that I was in compliance with the original Unix agreement (assuming I was).

    As far as all the extra crap about not using Linux and not exporting to Cuba, I would ignore. How can you be bound to answer on subjects that you have no contractual or legal obligation?

    SCO might as well be asking to certify that the room in which all Unix machines run is not painted green. Why would anyone answer that (true or not)? It's just not SCO's business.

  16. Voice Of Gauntlet on Cheap, Rugged, Multiplayer Gamepads for Linux · · Score: 2, Funny

    Four-player Gauntlet under XMAME, anyone?

    Blue Valkyrie... needs better technology... badly.

  17. One Stop Shopping on Canadians [Will] Pay Levy on MP3 Players - Updated · · Score: 4, Funny

    With the black market on media bound to spring up, I for one look forward to getting my hard drives and soft drugs from the same convenient supplier.

  18. Mel Blanc's Legacy on Mobile Phone for the Blind · · Score: 1

    So this idea comes from a Spanish company. For some reason I immediately pictured a phone with the voice one of those punch-drunk cats from a Speedy Gonzales cartoon saying "your seeestir in California says hhhhhhello'.

  19. Diplomatic Immunity on Orbdev Files US Federal Suit Over Asteroid Claim · · Score: 2, Interesting

    Like all other visiting officials, NEAR and NASA can simply refuse to pay parking tickets under diplomatic immunity. It happens on Earth, why not the rest of the cosmos?

    Man I wish Douglas Adams were with us to chime in here.

  20. Explosive Studies on Guy Fawkes' Explosion Would Have Devasted London · · Score: 2, Funny

    ...the university's Centre for Explosion Studies...

    I'm guessing to get a degree there you simply have to be alive at the end of the programme.

  21. Re:This explains alot... on Turn Your Head Into Speakers · · Score: 1

    Same problem here, only it's a whisper: "if you build it, they will come." Damned Iowans.

  22. Unix Becomes Public Domain? on SCO Madness Reigns Supreme · · Score: 1

    Now SCO is screwed no matter what:

    1. SCO successfully strikes GPL
    2. GPL'ed code becomes public domain
    3. SCO has released Linux under GPL
    4. SCO have themselves released any proprietary Unix code found in Linux to the public domain
  23. No Kyoto on X17 Solar Flare Sends 2B Tons of Plasma at Earth · · Score: 4, Funny

    Thank god we've got all that extra CO2 in the atmosphere to protect us!

  24. Lemme get this straight... on Google Considering IPO Auction Online · · Score: 1

    you put up your cash for a chunk of Google's cache.

  25. Re:Clac vs PDA on HP Launches New Calculators · · Score: 4, Insightful

    wouldn't HP be better off writing PDA software to do all of these functions?

    One problem with convergence of the general-purpose PDA and the calculator is that colleges ban the former from final exams because they can be used to store volumes of notes, even entire textbooks. There really is a market for college students, especially in engineering and sciences, for a good calculator without too much memory and fancy graphics, simply to help perform accurate calculations and nothing more.