Slashdot Mirror


User: imsabbel

imsabbel's activity in the archive.

Stories
0
Comments
2,621
First seen
Last seen
Profile
(view on slashdot.org)

Comments · 2,621

  1. Re:Using corn for ethanol is just stupid on Strange Bedfellows Fight Ethanol Subsidies · · Score: 1

    Yeha. And then after you fed those animals, you put them in front of your carriage for transportation.
    Great plan, mastermind.

  2. Re:Big Bang? on Robotic Telescope Unravels Cosmic Blast Mystery · · Score: 0, Flamebait

    Rest assured, not in your case.
    You wouldnt find something that leads to real since if you were a tour guide at MIT.

  3. Re:How the hell? on Magnetic Trunk Could Collect Moon Dust · · Score: 1

    Thats because even on one g, earth has AIR.
    And the moon doesnt. Thus all dust particles just parabola back to the ground.

  4. Re:Any advantages over having only one connector? on eSATA Connectors · · Score: 1

    It might not be mush faster than FW-800, but it CANNOT be slower.
    (as FW just adds an additional layer of complexity, with the drive being sata anyways)

  5. Re:http://www.lpl.arizona.edu/impacteffects/ on NASA Outlines Asteroid Deflection Program · · Score: 1

    Take a closer look at the data, and read between the lines:
    3*10^5 megatons== More than all nukes of the world together.

    In that distance (250km), its enough radiation to set everything but a swamp to fire.
    -> you get half a million km^2 of burning land.
    Add to this the evaporation of km^3 of crust material, and you will increase the particle density in the stratosphere by orders of magnitudes.
    Nuclear winter, anybody?

    if the boulder hits a ocean (likely), the water vapour would do that job nicely, too.
    Also the tsunamis would be "deep impacts" style -> EVERY coaster city on the respective ocean will be gone without trace. All other cities will still get enough wave by just what can squeez through. Also, "coastal" has to be taken with a grain of salt, because waves of such an impact could easily travel inland for 100-200 km.

    Even LA, SF, and tokyo wiped of the face of the earth alone would create the fall of civilisation as we know it (speak about trillions of investment money being vaporized in a second).

    such an event would likely kill 100M-1B people the first hours, and at least half the human population during the aftermath.

    That counts as end of civilisation, to me.

  6. Re:Nuke detonated at Yellowstone on Yellowstone Supervolcano Making Strange Rumblings · · Score: 1

    I wouldnt outright deny the possibility.
    While a nuke is really only a small sting to the earths crust, that region is kinda irritated...
    A penetration strike at the right spot _could_ weaken the crust enough to start a local outbreak, which _might_ cause a chain reaction.

    Otoh, you could get as much "fuck usa up" if you just put one of those nukes into the center of each metropolis.

  7. Re:They've been building them for 500 bucks for ye on High Schooler Is Awarded $100,000 For Research · · Score: 2, Interesting

    Well, in fact its not that easy.
    For example, your cheap diode laser is temperature dependent. As the (anti)stokes raman lines are energy shifts from the baseline, using a normal laser will give you different callibrations for different energies. So you want a temperature stabilized one (e.g. thermoelectric cooling with feedback loop).
    Now you got 1k instead of 500.
    Same goes for the prisma. You really want a grating, for good results. $2k.

    Then every single one has to be calibrated and tested.
    And then you actually want to make profit.

    The barely existing economy of scale doesnt really help much.

  8. Re:Read Cache is not the point! on Apple and LG plan Flash Laptops · · Score: 2, Informative

    For a 2.5" drive, 1 minute of idle operation costs more energy than a spinup-and down.

  9. Re:brilliant on Anti-Matter's Potential in Treating Cancer · · Score: 3, Informative

    gamma knife= bad at best, horrible in practice. There IS NO SAFE LEVEL FOR IONIZING RADIATION. Splitting it in 8 beams only increases the amount of affected tissue. The only reason its in use is that its marginally better than dying.

    Bragg-peak of decellerating particles== huge dosage in a very tiny volume, relatively little interaction of the particles during the inition part of ther journey through the body.

    And, as i post this right now from beamline 8.0 of the Advanced Light Source in berkeley, i can tell you that biological molecules have nice brought absorption spectra, and while there might by sharp pi-resonances, those are smeared out a lot in liquid solutions (plus, the carbon edge is really crowded, there is no empty space to "design a molecule" to.

  10. Re:When Free Speech goes to far on Law Student Web Forum: Free Speech Gone too Far? · · Score: 1

    Your pin-codes, when your children go to school (and which route they take), where your wife is shopping, when you usually leave your windows open, ect.

    All this would be free speech, and to tell it the world isnt a crime... but still lowers your personal security.

  11. Re:Old news on Speed of Light Exceeded? · · Score: 1

    yes, it will.
    Just try it out.

    Hint: there is more than one frame of reference.

  12. Re:Face the sun to dry out? on Golf-Ball Sized Hail Damages Shuttle · · Score: 2, Insightful

    Evaporation enthalpy.

    At 80 Kelvin, ice will be fine even in ultrahigh vacuum. So energy has to come from somewhere to allow the ice to evaporate. Those headshields are very good insulators, which leaves the sun as energy source.

  13. Re:540 kilograms of rain... on Golf-Ball Sized Hail Damages Shuttle · · Score: 1

    Sorry, but spaceflight is one of those occassions where there is a rather distinctive difference between weight (N) and mass (kg).
    Hint: in orbit, the stuff still was 540Kg, but 0N....

  14. Re:Liars! on Purdue Unveils a Tricorder · · Score: 1

    I am sure somebody could stick a microphone and a cell-phone camera on it, too, without too much hassle.
    -> isntant "tri"-corder.

  15. Re:A reason to strip DRM on Apple's iTunes DRM Dilemma · · Score: 1

    QTFairUse does EXACTLY the same as burning and ripping: decode and re-encode the audio stream.

    Did i really just discover a placebo effect you suffer?

  16. Re:Cracked? on Apple's iTunes DRM Dilemma · · Score: 2, Informative

    Sorry, i DONT WANT to reencode something to mp3 from a 128 kbit source. (especially between different algoithms. Artefacts have the nasty habbit to get amplified by the different psychoaccustic models).

    To crack the DRM, i would expect the program to decrypt the file, without transcoding it.

  17. Seeing that GPL get more asshole every revision, on Creative Commons v3.0 Launched · · Score: 0, Flamebait

    i really wonder how anybody would care about being "compatible" with it.

  18. Re:RAID5. on Recovering a Wrecked RAID · · Score: 1

    In a Raid 10, a two-drive failure evebt can result in data-loss.
    In a Raid 50, it cannot.

  19. Re:So SSD's are not only faster, but more reliable on Everything You Know About Disks Is Wrong · · Score: 1

    What do you consider "reliable" ?
    There are usb sticks around that survive driven over by a semi.
    Flash regularily survives a round in the washing maschine /dryer.

    The "ruggedness" of SSD is much bigger than mechanical, although the "soft errors" are yet really to be explored (i.e. aging of flash cells with the lover structure sizes, ect, cell vs controller failure rates, ect).

    Otoh, with SSDs, it should be very cheap to create on-disk-redundancy (maybe 2 redundant controllers with fail-over, chipkill for the flash banks, ect)

  20. Re:A Young Lady's Illustrated Primer on OLPC Has Kill-Switch Theft Deterrent · · Score: 1

    Or your wont.

    Just like you will see people buring american flags wearing nikes and baseball caps, your will get khmer rouge organizing their deportations with KonzentaratonCamp v0.21b.

    Technology or knowledge doesnt make people better.

  21. Re:Gee, You Think? on Scientists Dubious of Quantum Computing Claims · · Score: 2, Insightful

    Well, the thing is, a _real_ quantum computer would also be to fragile to move. Thats a reality in ultra-low-temperature equipment of the needed sensitivity.

    And still, even if they were on-site, if they wanted to cheat, how would you check that its really the QC that does the calculations? Even if there is a cable going into it, who says the real data didnt elsewhere? Or somebody put a laptop somewhere inside the QC?

    There is simply no way to verify the claim without taking the whole assembly apart, which of course would be impossible on a single prototype.

    (just saying. I dont believe their claims either, but your argument isnt as good as you think it is)

  22. Re:Cadmium sulfide on Bionic Eye Could Restore Vision · · Score: 1

    Well, thats obvious. If it takes digital images, you can use _any_ imaging technique. ultrasound/heat imagin/auperzoom lenses... electron microscopes, telecopes, doppler radar. the possibilities are endless.

  23. Thats my problem with the press release, too: on Scientists Dubious of Quantum Computing Claims · · Score: 3, Informative

    "instead a kind of special-purpose machine that uses some quantum mechanics to solve problems."

    Well, _any_ mosfet based transitor uses quantum mechanics to solve problems (you get real problems explaining band-formation and the influence of substrate doting classically). That statement is trimmed down to be as slippery as possible.

  24. Re:Mirror of Wikipedia on a $7 GoDaddy Account on Is Wikipedia Failing? · · Score: 1

    You posted that same shit last week, too.
    Yeah, its a static mirror, slow as hell (even with less than 1/100s of a percent of the real wikipedias load), no version history, no search, no editing.
    => its not even worth the 7$

  25. Re:It used to be worse. on Cosmic Rays and Global Warming · · Score: 1

    But why are all those sceptics ALLWAYS and ONLY sceptic vs pro global warming scientists and studies?
    It stinks awefully of denial.