Slashdot Mirror


User: Deadstick

Deadstick's activity in the archive.

Stories
0
Comments
2,517
First seen
Last seen
Profile
(view on slashdot.org)

Comments · 2,517

  1. Re:Bravo! on Solar Impulse 2 Makes First Flight · · Score: 1

    Gust responses are very benign in an airplane with such a low wing loading. It would take an extremely sharp-edged gust to achieve an actual airspeed reduction that big...basically it reacts like a leaf instead of like an airliner.

  2. Re:Animals? on Geophysicists Discover How Rocks Produce Magnetic Pulses · · Score: 1

    No, in his only furball with a cat the cat was definitely the aggressor. However, he's hell on prairie dogs.

  3. Re:Animals? on Geophysicists Discover How Rocks Produce Magnetic Pulses · · Score: 4, Insightful

    ...given that they really do react in advance to earthquakes. That lore has been in the "everybody knows" class for millennia, but the observations have an unpleasant habit of being reported after the quake. If my house started shaking right now, I could certainly think of something goofy our Jack Russell Terrorist did an hour ago.

    IIRC, Caltech set up a hotline in the 1980's for people to report anomalous animal behavior, and got a null result...the line would start ringing after the tremor, and there was usually an excuse involving not being near the phone. Perhaps it's time for another try, now that we all have cellphones.

  4. Re:Bravo! on Solar Impulse 2 Makes First Flight · · Score: 1

    moderate tailwind and you stop flying?!?

    No. Moderate tailwind and you cover ground moderately faster. You can look these things up.

  5. Re:Ob on Grace Hopper Documentary Edges on Successful Crowdfunding · · Score: 1

    I can sense your pride.

  6. Intercept, not interdict on UPS Denies Helping the NSA 'Interdict' Packages · · Score: 1

    If they interdicted your router you'd never get it.

  7. Re:As General "Buck" Turgidson said on B-52 Gets First Full IT Upgrade Since 1961 · · Score: 1

    I guess he wasn't that good after all.

    Not nearly as good. That crash advertised itself in advance, repeatedly, and everybody else missed every opportunity to head it off.

  8. What kind of dating approach on The Internet Is Now Part of the Crime Scene · · Score: 3, Funny

    ...will never get you a date if you (a) are a fairly nice-looking kid, (b) drive a BMW, and (c) have a father who employs actresses?

    About the only one I can think of is "Let me tell you about Amway".

  9. Re:Only safe place... on Dump World's Nuclear Waste In Australia, Says Ex-PM Hawke · · Score: 1

    you use a safe rocket design

    You mean one that won't fall in the ocean?

  10. Re:Transportation Hazards on Dump World's Nuclear Waste In Australia, Says Ex-PM Hawke · · Score: 1

    What mdsolar said. Just putting it back where it came from doesn't work -- unless you put certain protons and neutrons back where they came from.

  11. Re:Commodity of the future on Dump World's Nuclear Waste In Australia, Says Ex-PM Hawke · · Score: 1

    This ain't the first kind of waste they've taken on, either. A lot of the plastic people think is getting recycled is getting landfilled in Australia.

    Nor was that the first:
    http://en.wikipedia.org/wiki/C...

  12. Re:Moeller Skycar on The World's Worst Planes: Aircraft Designs That Failed · · Score: 1

    And he's been pushing this silly concept since the 1970s at least.

    Silly? That's four decades of very nice income for Mr. Moeller.The Skycar does precisely what it's designed to do.

  13. Re:Yes, but people died on The World's Worst Planes: Aircraft Designs That Failed · · Score: 1

    Was it utterly impossible to learn this lesson without putting that flying time bomb in the air?

    Well, no. There's another way: Start a war. Then your government gives you truckloads of money, and you can do all the testing you want with test pilots, and only a few people die.

    Of course, huge numbers of people die from other causes, but aeronautical research doesn't get the blame.

    In the history of the people who died to give you a way to get to Las Vegas that's so fast and safe you can afford to bitch about getting felt up by security droids, the Comet affair is scarcely a bump.

  14. Re:What could go wrong with the Vomit Comet? on Swiss Space Systems Announces Plan To Offer World's Cheapest Zero-G Flights · · Score: 1

    Airplane barf is a well-explored phenomenon. To quote The Graduate, plastics.

  15. Re:never my ass on Swiss Space Systems Announces Plan To Offer World's Cheapest Zero-G Flights · · Score: 1

    if you really want to get a feeling of zero G, there are many cheaper alternatives out there.

    Indeed. If you'll be happy with three or four seconds of it, and you have a friend with a Cessna, he can do it for a couple of gallons of gas (though a flight instructor will usually do a better job).

  16. Re:no such thing as zero-g. on Swiss Space Systems Announces Plan To Offer World's Cheapest Zero-G Flights · · Score: 1

    Capital G is the symbol for a unit of acceleration equal to 9.80665 m/s^2, which is the acceleration of Earth gravity. Accelerometers read acceleration in G units, and that includes the one in your cellphone. Take that phone on a Vomit Comet ride, and you will indeed see zero G's on it.

  17. Re:Does anyone know what the largest possible is? on Biggest Dinosaur Yet Discovered · · Score: 1

    I'd substitute "compressive" for "tensile", but yes, I'd imagine this fellow spent a lot of time wallowing in mud, a behavior I believe is ascribed to some other dinos.

    The square/cube relation certainly affects birds: the larger ones have to employ soaring techniques to extract energy from air movement, in order to find food.

  18. Re:Penetration of microwaves on The Physics of Hot Pockets · · Score: 2

    OK, so frozen stuff doesn't microwave easily, but then why does the outside heat first?

    When a wave penetrates a conducting medium, it transfers energy into the medium, and as a result it gets weaker exponentially. The intensity vs. depth is given by

    E=Ei*exp[-C(depth/wavelength)]

    where Ei is the intensity at the surface, and C is a constant that depends on the characteristics of the medium. C is small in ice, so the wave doesn't transfer much energy initially, and most of the energy just trucks on through and out the other side. Still, there is some attenuation, so the intensity is greatest at the surface and melting occurs there first.

    As soon as that happens at the surface, C gets much larger and the liquid sucks most of the energy out, getting progressively hotter. The remaining energy again encounters ice, and has almost clear sailing until it hits the water on the other side, and again heats the water.

  19. Re:PRACTICAL zero emission aircraft on Airbus E-Fan Electric Aircraft Makes First Flight · · Score: 1

    its the volume of air flowing over the aircraft

    No, not volume, mass. And water is 800 times as dense as air.

  20. Re:PRACTICAL zero emission aircraft on Airbus E-Fan Electric Aircraft Makes First Flight · · Score: 1

    The heat flux is proportional to the temp differential between the reactor coolant and the outside coolant. The former is typically around 600F, so another few dozen degrees on the outside coolant ain't hardly much of a difference.

  21. So do what everybody else does on You've Got Male: Amazon's Growth Impacting Seattle Dating Scene · · Score: 1

    ...produce a musical comedy.

  22. Re:Space programs as a crowbar? on Russia Bans US Use of Its Rocket Engines For Military Launches · · Score: 1

    During the cold war, the Soyuz capsules were equipped with a special pistol that could fire in a vacuum. I don't think it was for defending against the random alien that might wander by.

    Ummm, no. It was life insurance in the case of an off-target landing.

    Unlike us, the Russians recovered their spacecraft on land, usually in remote areas, and like us, they didn't always hit the target area, and there could be a few days of searching involved. When you're lost on the ocean, you need shark repellent. When you're lost in the back country of Siberia, you need bear repellent.

    Also, what AC said. Read a book on guns.

  23. Re:A "Feyn" place to end Pi on Brain Injury Turns Man Into Math Genius · · Score: 3, Informative

    Indeed. And if you define pi as the smallest positive real number whose cosine is -1, the Planck length becomes immaterial.

  24. Re:OP, you're a moron. on The Feds Accidentally Mailed Part of A $350K Drone To Some College Kid · · Score: 1

    OK, now mixing up homophones...it sucks, but this is the Internet. But using a homophone correctly in the title and wrong in the text...that's a little more creative.

  25. Re:My baby blue on Breaking Bad's Scientific Consultant On Making Meth and More · · Score: 1

    Couldn't they use ordinary food coloring without making people sick?