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User: retrosurf

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Comments · 36

  1. Re:What's wrong with all of you? on Manga Explains NASA Mission · · Score: 1

    I was glad to see the comic book format, but I think
    the "space dogs" approach was exactly the "dumbing down"
    that you complained about (I read it all). I was sort
    of hoping that Cindi would be an anthropomorph of the
    satellite itself. I favor the 1940's style educational
    comic where the technology itself was animated.

    I wonder if a target audience was selected. Certainly
    this comic would be appealing for early-adolescent male.
    Roberto, back in the lab, is a hispanic male, which has
    NASA written all over it.

    Hopefully, no politician will get wind of this. I read
    the budget proposal out of the house of representatives
    that decreed that NASA shall never again have an "artist
    in residence". Laurie Anderson was NASA's first and last.

  2. Re:Nanoscale on Self-Cleaning Buildings to Fight Smog · · Score: 1

    The form of titanium dioxide that is used in paint
    is rutile, which is not very effective at
    heterocatalysis compared to the anatase form.

    Titanium dioxide works just fine in bulk as a
    heterocatalyst: no nano-dispersion or quantum dot
    properties are needed. Simply add ultraviolet, and
    titanium dioxide mediates the production of hydroxyl
    radicals from any water vapor in the vicinity, and
    then the radicals bring woe and destruction unto
    any other chemical compounds nearby.

    Self-cleaning these buildings may be, but I don't
    think they're going to do a lot for airborne
    pollution.

  3. Re:825 mW/mole on Nuclear Battery That Runs 10 Years · · Score: 1

    I concur with your calculation of .825 watts/mole,
    but you neglect the second step and leap immediately
    to profit.
    That beta particle is captured by a p-n junction,
    and does the same thing for that junction that a
    photon does for the p-n junction in a photovoltaic
    cell. And the 6000 ev present in the beta particle
    is mostly wasted as heat while it is being slowed
    down to the maybe 5 volt range required to liberate
    an electron in the p-n junction.
    I suspect that the depth of the p-n junction is
    very important to its proper operation in a beta
    battery.

  4. Re:These are *very* interesting on Nuclear Battery That Runs 10 Years · · Score: 1

    Some back of envelope calculations, before visiting
    the website, have 3 grams of tritium running at
    about .124 milliamps, assuming 100 percent beta
    capture by the battery, on average, for the first
    12.24 years.

    Old style beta batteries were high voltage (18,000
    volts) microcurrent devices. At these voltages, that
    3 grams of tritium is running at about 2.3 watts.

    However, beta capture by a p-n junction would seem
    to imply a much lower voltage (whatever the gap is on
    the junction). Generously assuming a 10 volt
    junction, that 3 grams is running at about a
    milliwatt.

    Photon317 has a AA betabattery charging a AA NIMH
    at about its self-discharge rate, which is a good
    place to start.

    But don't plan on having a Volkswagon Betabattery
    Beetle anytime soon. However, that Porsche
    Plutonium is a hot little model.

  5. Re:Make an example of that company on Charter School Firm Attacks Online Criticism · · Score: 1

    Why "should" "we" react? You immediately assume that
    the school is the villain here. I've been to their
    website, and while Jeb Bush is mentioned prominently
    in relation to their head administrator, I don't
    really *know* that they are evil incarnate.
    But I am curious. I have probed them with a polite
    letter. Based on their response or nonresponse, I
    will evaluate their customer service, and I make
    personal judgements based on politeness and
    information content.

  6. Re:It's TOTALLY price fixing! on Lawsuit Says GPL is a Price-Fixing Scheme · · Score: 1

    The organization you appear to describe is nothing
    like Habitat for Humanity. I agree, though: your
    buddy was sucker and worked as someone's tool.

    Here's how HFH "somehow avoids this problem", from
    their website, habitat.org:

    Through volunteer labor and donations of money and materials, Habitat builds and rehabilitates simple, decent houses with the help of the homeowner (partner) families. Habitat houses are sold to partner families at no profit, financed with affordable, no-interest loans. The homeowners' monthly mortgage payments are used to build still more Habitat house.

  7. Re:The PATRIOT Act Is Not Unprecedented on The Continuing Hunt for PATRIOT Act Abuses · · Score: 3, Insightful

    The suspension of rights for the wars that you mention are in no way comparable to the suspension
    of rights in the Wars on Drugs and Terrorism. The wars that you mentioned had endings, while the
    WOD and WOT are the encroachments of a police state.

    You say that we cannot afford to give more civil protections to Tony Soprano than we do to Osama bin
    Laden. Let me paraphrase that: We cannot give more civil protections to a citizen than we can to a
    noncitizen enemy combatant who is suspected of committing mass murder. Surely that is not what you
    meant. I would prefer to take the chance of being killed by a terrorist than to risk being tortured by the government.

    To misquote the tired old chestnut from B. Franklin, those who would sacrifice a little liberty for a
    little more security deserve neither. Franklin was talking about you, wombatcontrol.

  8. Re:Finally, good non-CG animation on The Return of Wallace and Gromit · · Score: 3, Informative

    Claymation is trademarked by Will Vinton, at
    www.vinton.com. Sadly, he seems to have abandoned
    the "clay" part of it, after being a pioneer in it.

  9. Re:Uh, it's dark outside. on Mount St. Helens Shoots Steam, Ash · · Score: 1

    Actually, the camera is sensitive in infrared, and works (some) at night. If
    you poke around on the site, you can find "nightglow" pictures.

  10. Re:They refused to give the free ice cream on Yahoo Turns 10; Free Ice Cream for America · · Score: 1

    I printed my coupon on a 24 pin printer.
    It looked terrible.
    No problem at Baskin-Robbins.

  11. Re:Waste disposal on Coming Soon: Self-Heating Coffee · · Score: 1

    More environmentally hostile than you think. The
    residue left after combining calcium oxide with
    water is calcium hydroxide, CaOH.

    This is also known as lye, which you might recognize
    as a caustic alkali chemical. Containment of the
    resultant lye will be important until the spent
    coffee heater makes it into a landfill.

    And really, using an automobile cooling system for
    your coffee presents an even greater disposal
    problem than little cups of caustic lye :-)