Slashdot Mirror


User: Thelasko

Thelasko's activity in the archive.

Stories
0
Comments
2,910
First seen
Last seen
Profile
(view on slashdot.org)

Comments · 2,910

  1. Re:You too can be an armchair scientist. on Scientists Discover Cows Point North · · Score: 1

    Or maybe satellites take images at noon when the lighting is best because the sun happens to be at its highest (and in the south)?

    Yeah, I was thinking along those lines as well. Think about a cow's day (non-dairy).

    8am wake up
    8:04am exit barn
    8:05-12:30pm graze in a direction away from the barn
    12:31pm turn around
    12:32pm graze towards the barn.
    5pm go back into barn.

    The direction they are facing depends on what time of day the picture is taken. It also might depend on what direction the barn door is facing, or how the pasture is fenced in.

    Note: I'm not a farmer, I'm not very knowledgeable about bovine behavior, and/or schedule keeping.

  2. Re:You too can be an armchair scientist. on Scientists Discover Cows Point North · · Score: 5, Insightful

    I believe a cow's eyes are on the sides of their head. Not at the front of their head, like ours. Therefore, the sun would be in their right eye in the morning, and the left eye in the afternoon.

  3. Re:The old is new again on Fuel-Cell Car Racing Series Aims To Spur Green Motoring · · Score: 2, Interesting

    Don't get me started. I've been a long time proponent of this idea. There's really two types of racing, racing to challenge a driver's ability, and racing to challenge technology.

    Currently, motorsports is mostly about driver ability. NASCAR, the most popular form of motorsports in the U.S.A., regulates the cars so heavily it would be simpler to just provide cars like IROC did. Le Mans is probably the most technologically challenging. We have seen some breakthroughs recently with the R10. But it's still not the old days, you can't race my favorite car, the 787B at Le Mans.

    I think a big problem is because either the drivers, or the spectators cant distinguish whether a race was won by talent, or technology. When a team wins with technology, the drivers and fans cry foul.

    In terms of regulation, in motorsports, and on the street (I'm looking at you EPA, and NHTSA), I don't think certain technologies should be mandatory. There should be metrics that can be tested (horsepower, acceleration, etc) that can be required, but to have requirements like, piston driven engines, or specific types of brakes, severely stifles innovation.

    In summary, one shouldn't use rules and laws to force technology on people.

  4. Re:right up till... on Carbon-Neutral Ziggurat Could House 1.1 Million In Dubai · · Score: 4, Interesting

    Someone crashes a A340F full of explosives into it. Or sets fires in it, or...

    If it's that large, nothing short of a nuke will take it out quickly. A big fire might take it out eventually, but it will take a while.

    You did remind me of something though.

    the real trick would be getting 1.1 million people to live in such close proximity.

    Why not put the poor in there? Putting poor people in close proximity housing is a great idea!

  5. Re:This is not even news... on NASA's Orion Mock-Up Fails Parachute Test · · Score: 2, Informative

    That's why they are tested.

    Exactly, be thankful it broke during testing and not with people in it.

    Where I work, we do a lot of durability testing. Whenever something breaks during a durability test, somebody is always upset. We have to remind them that the whole point of the test is to break it.

    Granted, this wasn't a durability test, and breaking it wasn't the goal. The mock-up may have failed to perform as designed, but as long as they obtain enough information to figure out why it didn't perform as designed, the test was successful.

  6. Re:ehm on New Attack Against Multiple Encryption Functions · · Score: 4, Funny

    Does this mean, can I finally recover the data encrypted by the Gpcode virus?

  7. Re:I guess this has some merit... on Jail 'Greedy' Scam Victims, Says Nigerian Diplomat · · Score: 1

    if you aggressively invested that money instead and got 10% annual return for that timespan (probably entirely ridiculous), at the end of that you'd have $30,727. If we were to assume an already-optimistic 7% rate of return, that's only $10,500.

    But how much is that money worth in today's dollars? An investment doesn't technically make money unless it beats inflation.

    Also, I have an argument for purchasing one, and only one lottery ticket each game. Say the odds are 1/1,000,000 if you buy one ticket, and 2/1,000,000 if you buy two. If you don't buy a ticket your odds of winning are zero. 1/1,000,000 is infinitely larger than zero, but 2/1,000,000 is only twice as large as 1/1,000,000. Therefore, it's only a bad idea to pay the lottery if the odds were 1/infinity, because those are the same odds of not playing at all. The improvement in your odds by buying two lottery tickets, instead of one, is negligible.

  8. Re:dumb people lose money, not freedom on Jail 'Greedy' Scam Victims, Says Nigerian Diplomat · · Score: 1

    As long as whoever comes out ahead with the money classifies it as 'Illegal Income' when filing his/her tax returns at the end of the year, I'm fine with whatever.

    Any competent grifter (A.K.A. tax accountant) knows you report it as "Fifth Amendment."

  9. Re:dumb people lose money, not freedom on Jail 'Greedy' Scam Victims, Says Nigerian Diplomat · · Score: 3, Informative

    Most Nigerian 419 scams are a variant of a much older scam known as the Spanish Prisoner. It dates back to the early 1900s.

  10. Re:How does it go? on Wind-Powered "Greenbird" Seeks Land-Speed Record · · Score: 1

    The rigid sail on this landsailer is actually much more efficient than a cloth sail.

    This has been tried on boats too. From Wikipedia:

    Two Stars and Stripes cats were built, one with a conventional soft sail (Stars and Stripes S1), and the second with a hard sail (Stars and Stripes H3) built by Scaled. The hard sail proved faster and was used in defense.

    After the 32nd America's Cup, the hard sail yacht was bought by Mexican yachtsman Victor Tapia and sails in Mexico. The soft sail yacht was bought by Steve Fossett and used to set speed records in various yacht races.

    Yes, "Scaled" refers to Scaled Composites of Space Ship One fame. I've had a very difficult time finding more information about this yacht. I wonder why that design hasn't become more popular. I suspect it was made illegal for racing.

  11. Re:That's Not "Ironic" on Iran Announces Manned Space Mission Plans · · Score: 2, Interesting

    you don't bother to point out that Rumsfeld and Cheney met while working together for Nixon.

    I was trying to be subtle. I couldn't find a good picture of them with Nixon. (I love how they both are grinning deviously while Ford has a confused look on his face)

    I think it's more likely that they're meddling in the middle east to manipulate the oil market. I mean, for a group of people to demonstrate such a profound level of incompetence as they have... and keep their jobs for over 30 years... (thinking about people I work with)...maybe they're just that incompetent. (intended with the appropriate amount of sarcasm)

  12. Re:They will start... on Iran Announces Manned Space Mission Plans · · Score: 1

    I just spent over an hour at that game

    I suspect that's why it took so long for that comment to get modded up. The mods were too busy playing the game.

    FYI THE GOGGLES DO NOTHING!

  13. Re:That's Not "Ironic" on Iran Announces Manned Space Mission Plans · · Score: 1

    That's a really nice tinfoil hat there. Where did you get it? I'm not saying your wrong, I just want to know where I can get one.

    P.S. Some of his "brain trust" go back farther than that.

  14. Re:Atmosphere out of reach... on Iran Announces Manned Space Mission Plans · · Score: 4, Funny

    And we all know how hard it is to reach the Earth's atmosphere!

    It is if your launching a missile from underwater you insensitive clod!

    Wow, I never thought I would use the "insensitive clod" joke... but there it is.

  15. They will start... on Iran Announces Manned Space Mission Plans · · Score: 4, Funny

    with a budget of $50 and use a hedgehog as a proof of concept to secure further funding.

  16. Re:Explain this to me. on Compact Disc Turns 26, Has a Bright Future · · Score: 4, Insightful

    Now you can get a gig of flash, near infinitely rewritable for $7 [newegg.com]. Impervious to scratches, can survive several trips through the washer, and have fast read/write speeds. I cannot understand how TFA is so optimistic.

    Why is there a market for paper plates when you can use ceramic ones over and over? Because you can throw it away.

  17. Re:Interesting tweak on NASA Installing Shocks On Ares · · Score: 1

    perhaps the GP doesn't realize

    The GP does realize, that's why he mentioned the Aries I specifically. This design issue is only present in the Aries V.

    Maybe you weren't talking about me though, maybe you meant GGP instead of GP.

  18. Re:Insurance? on How Do I Prevent Lan Party Theft? · · Score: 5, Funny

    The reality here is this is a LAN party, not a frat-boy keg party. The risks are low.

    LEMME SHOW YA SOMETHIN!!!!
    All of the equipment blows one of the fuses in the OP's antiquated household wiring. Anxious to get back to playing Counter-Strike, one of the guests uses a penny in place of a fuse.

    Do not panic, I am a fire marshal!

  19. Re:cost? on NASA Installing Shocks On Ares · · Score: 1
    From this article, Garry Lyles, associate director for technical management, NASA's Marshall Space Flight Center, says:

    This is a low weight solution. The impact on mass to orbit is approx 1200 - 1400 pounds which is within the mass margin on the Ares side.

  20. Re:Not absorbing vibrations on NASA Installing Shocks On Ares · · Score: 1
    From space.com

    The planned shock absorbing system's passive spring and damper component is designed to sit at the top of the first stage and reduce vibrations from thrust oscillations from a peak 6 Gs to about 1 G. The addition of 16 tuned mass absorbers, cylindrical shock absorbers that use motors to sense vibrations and nullify them using spring-mounted weights, would further limit the shaking to about 0.25 Gs, engineers said.

  21. Re:Why have they left it this late? on NASA Installing Shocks On Ares · · Score: 2, Informative

    This isn't pogo, which you linked to, which affects only liquid-fueled rockets. This is an "organ pipe" oscillation characteristic of solid rocket boosters.

    Mod parent up please. This explanation makes much more sense. The length of the SRB makes the gases inside resonate to a specific frequency. If that frequency is close to the natural frequency of the craft, it breaks.

    This leaves NASA with a few options:
    A) Change the frequency of the booster. (Use two shorter SRBs so they resonate at higher frequencies.)
    B) Change the natural frequency of the vehicle. (add or remove mass)
    C) Use a totally different kind of engine.

  22. Re:Interesting tweak on NASA Installing Shocks On Ares · · Score: 2, Informative
    Here's an interesting article on pogo.

    Also, there is a fallacy in your logic.

    it would not surprise me if the Saturn V's "small" pogo suppressors weighed over 1600 pounds in total.

    The Saturn V is a much bigger rocket than Aries I.

  23. Re:Interesting tweak on NASA Installing Shocks On Ares · · Score: 1

    According to this page, it looks something like this only designed for cryogenic temperatures.

  24. Re:I still dont understand on NASA Installing Shocks On Ares · · Score: 2, Informative

    Does someone have a car analogy?

    Because they didn't design their engine very well, it now needs a very large harmonic balancer.

  25. Re:Interesting tweak on NASA Installing Shocks On Ares · · Score: 1

    You think the Saturn V didn't have many tons of anti-vibration structure, anti-pogo devices, and other such things? Get real!

    Actually, with a liquid fueled rocket you can put a small damper in the fuel line.

    Similar fuel pulse problems occur in diesel engines, I deal with it every day.