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User: guybarr

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Comments · 397

  1. Re:oh come on... on Spielberg Denied Crack at Star Wars · · Score: 1

    if you're a professional and see a chance to create something of importance why NOT ask a coleague to collaborate ?

    he's not doing a clone of the movie (no pun intended), but just trying to contribute to the original . according to your code of manners no collaboration would ever get to be proposed.

  2. Re:Talk about a blunder. on Spielberg Denied Crack at Star Wars · · Score: 1

    yeah, when I went to see AOTC the average age of the audience was > 20.

    during all of the romantic scenes a continous low-volume stream of female snickers and/or male snorts of derision could be detected.

    everyone ever being in something remotely like a date just couldn't hold his/her water laughing.

    as opposed to harrison ford at the original triology, whom you can see have met a girl or three, that anakin-puppet couldn't even play a blundering puppy right.

  3. Re:Why not be positive about this? on Russia Wants to Launch Manned Mission to Mars · · Score: 1

    The technology gained by Cold War launches easily paid for the expenditure

    have you any analysis to back this claim ? my estimate is the US and USSR have invested quite a lot of man-millenia (and of technical personnel, not just general workers) in the arms race. how much more advanced would we be today if, say, 10% of this effort would have gone to non-military scientific and technological research ?

    no-one can answer this, but claiming that the secondary gains of the arms race are greater than the potential gains from the same investment directly into research seems doubious to me.

  4. Re:Why not be positive about this? on Russia Wants to Launch Manned Mission to Mars · · Score: 1

    I don't think such a massive step like going to Mars ... will ever make sense, particularly financially.

    but mining the asteroid belt to create SPS (solar power satellites) energy solution actually makes a LOT of financial sense, and once you'll have the transportation means for the AB, mars voyage will be much closer.

    this is why I'm against a human-mission to mars at this time. let's build a space oriented buisness first, the science will be orders of magnitude cheaper afterwards.

  5. Re: why diamond core ? on What Would Happen If the Moon Crashed To Earth? · · Score: 1

    regarding your hypothetical "bread-planet"

    why a diamond core ?

    oxygen is heavier, and at large densities you would probably get some metalic phase which is not solid state.

    come to think of it hyper-dense carbon should also be different than usual diamond, as the E part of the Gibbs free energy F=E-TS will be mostly a function of the density (r^-12 part of leonard-gibbs potential) and not of the chemical connection. (=> disordered state, pseudo-liquid)

  6. Re:minimal action principle on Long-Term Effects of Weightlessness · · Score: 1


    a physical path between 2 points in phase space is the one satisfying the minimal action principle.

  7. what kind of a moron on eBay To Offer Health Insurance · · Score: 1


    will buy insurance on such a program ?

    your health-insurance agent is someone you should trust with your life.

    actually, you do ...

    because when you are healthy, the insurance companies earn their bread from you.

    when you are sick, they'll try to get rid of you like you were made of radioactive waste, only a reliable HI agent will be able to recover these funds for you.

    what happens if ebay collapses ? will you still be insured ? what happens if you can no longer be a 1000$ costumer (if you'll need serious medical care, believe me, you probably wouldn't) AND you are now sick ? no IC will accept you then ...

    I don't get it, I don't live in the US, so maybe there's something else hidden between the lines here, but I just don't get it.

  8. Re: how is that possible ? on Riding the World's Fastest Train @ 500 kph · · Score: 1


    the OP didn't say "Nobody will ever be killed as a result of a derailment of the TGV"

    no, but he said the trains derailed, not a part of them. This is a concrete statement, not hypothetical.

    Huh? You can't provide experimental evidence without performing the experiment - in other words, putting people on the train and derailing it.

    as a side note, crash tests are being done with dummy-dolls, but I digress.

    ... killing themselves for your scientific curiosity is ...

    which I did NOT suggest.

    anyway this thread has become uninteresting, let's discontinue it.

  9. Re: how is that possible ? on Riding the World's Fastest Train @ 500 kph · · Score: 1

    It's just possible that the reason nobody has provided a link to such an incident is that the TGV has never had a full train high-speed derailment?

    I hope that's the case, but if so, the original grandparent poster made an over-general remark.

    Perhaps YOU can provide a like to such a derailment where there were fatalities?

    definately not, I'm neither an expert on TGV nor BR nor any other railway network, I just read a comment which appeared (from a physicist's point of view) extremely unlikely. Strange enough, the fact no link were given strengthens that view.

    As an occasional victim of the sick joke that is the British railway network, I find the TGV's safety record to be outstanding.

    congratulations to the french if true, but my post was not about the full safety record.

  10. hardware verification automation on Properly Testing Your Code? · · Score: 1

    for automation of some parts of the verification process in hardware see:

    http://www.verisity.com

    software and hardware verification share much in common. Actually the product is used to test itself.

    (disclaimer!! I was an employee of verisity , before turning to other areas, and continue to hold her stock )

  11. Re:It's faster than light teleportation on Laser Beam Teleported · · Score: 2, Informative


    superluminal photons are old news.
    IIRC, though, superluminal communiaction , i.e. passage of information is considered impossible .

    (the fact the WF collapses does not imply passage of information, as you need to know the information measured at source to decipher the destination state)

    I very much doubt they achived this.

  12. Re:Teleportation, or recreating? on Laser Beam Teleported · · Score: 1

    The answer to this dilemna is to realize that the person we were 10 minutes ago is dead

    my (IANA Biologist) definition for life definately treats it as a time dependant process i.e. a life form is not only it's manifestation at any given instant, but a 4D phenomena.

    and it is the usual meaning people attribute to life: the current me is a manifestation (a projection to 3D, if you like) of a very complex set of interconnected time dependant processes which are viewed as a continuum from zigote to death. ("when he was a baby" ... note the past tense)

    and this is how I view the "self": as a set of processes which very much exist: they make decisions and alter the environment in measurable ways.

    death, in this view, is the temporal upper-bound on the 4D phenomena, saying a 3D projection is "dead" has no meaning.

  13. Re:So let me get this straight. on Wolframania · · Score: 1, Informative

    being a physicist and therefore having no real clue of math

    some theoretical-physics profs I know actually have VERY deep understanding of math, which they use in their work.

    get to know the real masters, if you're smart as that mensa card implies, you'll understand how wrong was that remark.

  14. Re:Lets assume the Computer is a sphere... on Technology Sectors that are Hot or Heating Up Now? · · Score: 1

    not in equilibrium Thermodynamics

    but there is time in Non-Equilibrium Thermodynamics ... in a "cruel and unusual punishment" manner.

  15. Re: R-bomb on Physics in the Movies · · Score: 1

    in real physics, all you need to do in order to anihilate a biosphere (if on surface) is to take an abject the size of a shuttle, accelerate it to .95C and collide the planet.

    this cannot be stopped (when you see the object, it is actually much closer) and will raize the temperature of atmosphere by several hundred degrees.

    read the SF book "flying to valhalla" (awful book, good physics).

  16. verification on Technology Sectors that are Hot or Heating Up Now? · · Score: 1


    verification is the biggest problem in all engineering (not scientific, there the problems are worse...) regimes, it grows exponentially with size (complexity) of system.

    I worked at a company ( http://www.verisity.com , nasdaq VRST) addressing the verification problem for hardware-design. It is the best IPO for 2001 (yes, 2001 - when nasdaq plunged) and it has positive earnings ever since.

    and I think they'll continue to be in demand, because whatever you do, you'll still need to debug ...

  17. Re:Zzzzzz on Warcraft III Gone Gold · · Score: 1

    lets take it further ...

    get married
    Build a house
    spawn children
    upgrade children
    fall in love with other woman
    upgrade wife
    wash
    rinse
    repeat

    the style of game has been so badly abused over the past 10^6 years that it turns out to be the Same #$^@ Different Day...

  18. Re:That much??!?!?! on Warcraft III Gone Gold · · Score: 1

    you'll tell them:
    in that case I donated only $49.99 to EFF !!

  19. Re: how is that possible ? on Riding the World's Fastest Train @ 500 kph · · Score: 1


    the original poster wrote:

    a handful of these trains derailed, and no-one got killed

    parent link points to a partial derailment, not full, in which the train only fortunately did not jack-knife.

    still waiting for a link to full train high-speed derailment w/o casualties , which I believe is quite impossible...

  20. Re: how is that possible ? on Riding the World's Fastest Train @ 500 kph · · Score: 1

    a train is derailed at 300 KMH and no one gets killed ? what are the french made of, nanotubes ?

    any links to thess miracles ?

  21. Re:I'll believe it when I see it. on Can Superconductors Block Gravitational Fields? · · Score: 1

    why should extraordinary claims be held to a higher standard of proof? Why can't *all* claims be held to an equally high standard?

    exactly for the same reason people can't work with all their files at the root directory: you need hierarchy and a filtering system to get anything done at all. for files as well for ideas.

  22. Re:MCF and runnaway muons on NASA to Investigate Hydrinos · · Score: 1

    Unfortunately, muons decay rather quickly, and it take more energy to make them than you get from the fusion

    IIRC a bigger problem with MCF was the muons' tendency to stick to the fast (higher-charged) helium resulting from fusion, thus geting the muons out of the De-Tr mixture and reducing efficiency.

    but as someone else said, MCF was a very plausible scientific/engineering idea at the time. This hydrino thing is something out of a crack-pipe.

  23. Re: mod parent up ! on Games in High School? · · Score: 1


    that's the funniest post I've seen in weeks.

  24. Re: moderators, please please please on Ask Moshe Bar about [your choice here] · · Score: 1


    don't feed the trolls ...

  25. Re: plenty of room in space. on Cloned Organs Demoed in Laboratory · · Score: 1


    IIRC, there are resources for ~10^14 people (yes, thats 100 trillion.) in the asteroid belt, that's not counting resources on moon.

    surface is not a real problem if you live in colonies in space, so is energy.

    the only real problem is getting many people up there (again: energy could come from solar satellites.).

    so you see: once you're out of the gravity-well, there is very little space limit for several centuries, live long AND prosper ...