Slashdot Mirror


User: polar+red

polar+red's activity in the archive.

Stories
0
Comments
1,890
First seen
Last seen
Profile
(view on slashdot.org)

Comments · 1,890

  1. Re:Damnit slashdot on Looking To Better Engines Instead of Electric Vehicles · · Score: 1

    subsidies you say ?
    http://en.wikipedia.org/wiki/Price%E2%80%93Anderson_Nuclear_Industries_Indemnity_Act
    "If the nuclear industry cannot have enough faith in its own technology to guarantee full responsibility for their own mishaps, then nuclear energy does not deserve these continued taxpayer subsidies. "

  2. Re:Damnit slashdot on Looking To Better Engines Instead of Electric Vehicles · · Score: 1

    cost ?
    http://peswiki.com/index.php/Directory:Cents_Per_Kilowatt-Hour

    http://www.ewea.org/fileadmin/ewea_documents/documents/publications/factsheets/factsheet_economy2.pdf

    The con-
    stancy of wind power costs justifies a relatively
    higher cost per kWh compared to the more risky
    future costs of conventional power due to volatile
    oil, coal and gas prices.

    Whatever the truth is : MASSIVE investments in windpower is being done by big energy companies, so it can't THAT expensive methinks.

  3. Re:Damnit slashdot on Looking To Better Engines Instead of Electric Vehicles · · Score: 1

    to produce power and both are horrifically inefficient

    an electric engine is CERTAINLY NOT inefficient. In fact, replacing the gearbox of an ICE with an EVT (electric transmission : ICE engine --> electricity --> electric engines at the wheels) INCREASES the fuel efficiency of the car !
    http://martinhoeijmakers.nl/publications/hoe2004b.pdf
    in fact, generating electricty from oil, and using it in electric cars also is more fuel efficient as the ICE. dumping batteries you say ? Why ? you can SELL them: a broken battery is worth a lot.

  4. Re:Damnit slashdot on Looking To Better Engines Instead of Electric Vehicles · · Score: 0, Offtopic
  5. Re:Damnit slashdot on Looking To Better Engines Instead of Electric Vehicles · · Score: 0, Troll

    can you back that up with a few links to studies ?

  6. Re:And The Dining Patent Philosophers Starve!! on Apple Counter-Sues Motorola Over Touchscreen Patents · · Score: 1

    forks down !

  7. Re:It wasn't a "power failure"... on Launch Command Preserved In Power Failure, But Nuclear Designs Still Risky · · Score: 1

    peacefully and lovingly help each other.

    Die you commie !

  8. Re:So... I guess this means on Researchers Find a 'Liberal Gene' · · Score: 1

    What is liberal? conservative ?

  9. Re:Europe has a history of censorship on Europe Proposes International Internet Treaty · · Score: -1

    censorship applies to opinions, hate is not an opinion.

  10. Re:Coal powered? on Smallest Manned Electric Plane Flies · · Score: 1

    1/Tracks and buses are hardly cars, diesel/petrol vehicles are more fuel efficient the bigger they get. And even for those heavy vehicles engine effiency not fuel to wheel efficiency(think about transmission losses, brake losses, idling ...) is not even 50%(how can you consider that a good number ???).
    2/it seems you are the one worshipping diesels, I am not worshipping electric cars nor diesel/petrol cars. I am only saying diesel/petrol cars are horribly inefficient.

  11. Re:Coal powered? on Smallest Manned Electric Plane Flies · · Score: 1
  12. Re:Coal powered? on Smallest Manned Electric Plane Flies · · Score: 1

    ICE hitting 50% when the condition become right

    NEVER in a car.

    Sure, electric vehicles are currently limited by batteries(best is currently 300miles or so with the tesla), but NOT by their engine. The best solution would probably be cars with permanent links to the grid (like trains) but I don't see that happening.

  13. Re:Coal powered? on Smallest Manned Electric Plane Flies · · Score: 1

    yeah, well, the 25% quoted is also only for the oil in the tank, not for pumping it up, transporting it and refining it. (which would bring the 25% close to 10% ...)

  14. Re:Coal powered? on Smallest Manned Electric Plane Flies · · Score: 1

    That's a FULL 10 second search on google ... :

    http://en.wikipedia.org/wiki/Electric_vehicle

    'electric motors often achieve 90% energy conversion efficiency[31] over the full range of speeds and power output and can be precisely controlled.'

  15. Re:Coal powered? on Smallest Manned Electric Plane Flies · · Score: 1

    my point? ICE's are (even after 100+ f&cking years!) awfully inefficient. 25% ? you've got to be kidding me ... ICE's have no claim to be ingenious.

  16. Re:Coal powered? on Smallest Manned Electric Plane Flies · · Score: 1

    generating electricity (even with gasoline!) and transmitting the electricity, putting it in the battery, taking it out of the battery, and converting it to motion: is MORE efficient than burning the gasoline in an ICE ...
    google it: Piles of links to support that statement.

  17. Re:Coal powered? on Smallest Manned Electric Plane Flies · · Score: 1

    electric engines : >90%

  18. Re:Coal powered? on Smallest Manned Electric Plane Flies · · Score: 1

    'ingenious' maybe we shouldn't call an ICE an engine then, seeing that it wastes 75% of the energy provided to it ?

  19. Re:And So Offered Another Inaccuracy on How Star Wars Trumped Star Trek For Scientific Accuracy · · Score: 4, Insightful

    Maybe 'Science Fiction' is a major misnomer for all works currently filed under it.

  20. Re:And So Offered Another Inaccuracy on How Star Wars Trumped Star Trek For Scientific Accuracy · · Score: 4, Insightful

    Science fiction ? Star Wars is more like future fantasy, and Star Trek is more future fiction.

  21. Re:Hmm on Drunken Employee Shoots Server · · Score: 1

    As an europen i say :
    WTF ??? the right to carry concealed weapons ???

  22. Re:who cares on Scott Adams On the Difficulty of Building a 'Green' Home · · Score: 1

    STOP! european and US norms are apparently different ... U-value (US) != U-value (EU) (and we also got Uw-value, K-value, ... )
    my new argon double-pane-windows are rated 1.1. (that's 4mm-15mm-4mm )

  23. Re:who cares on Scott Adams On the Difficulty of Building a 'Green' Home · · Score: 2, Informative

    You have very badly insulated walls. the best windows on the market are triple pane with about U=0.5, the best double-panes are 0.8 or 0.9. a badly insulated wall starts at max U=0.6 (I think the building-standard(in Belgium) calls for U=0.35 walls) [LOWER is BETTER]
    [I think U = the # watts lost per hour per degree difference in Kelvin]

  24. Re:Their equipment, their choice. on Germany To Grant Privacy At the Workplace · · Score: 1

    vote a bit more for the military-industrial complex, and the roles will be reversed. hint : with the democrats it will take a bit more time (but not much).

  25. dangerous? on New Spacecraft Set For Dangerous Jupiter Trip · · Score: 1

    Yeah, al those other moon- mars- and other space-missions where a walk in the park ...