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Thread: Stuff you just don't get.

  1. #4381
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    In these days I really don't get winter. I miss summer

  2. #4382
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    Stuff you just don't get.

    Quote Originally Posted by Noclevername View Post
    ...Piles of plowed snow were collected in huge burial mounds at the sides of empty parking lots, where they remained standing until well into spring.
    We always had some yahoos try to park their Jeeps on those.
    I may have many faults, but being wrong ain't one of them. - Jimmy Hoffa

  3. #4383
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    Tomorrow is listed on the calendar as "midwinter break or snow make-up day." Except it can't be a snow make-up day, because the day we missed because of snow was Friday, and that's not enough time to arrange for everyone to have class tomorrow. Okay, we're nearing spring--but not that near. This is Simon's fifth year of school in his life; this is the third year he's had snow days in February.
    _____________________________________________
    Gillian

    "Now everyone was giving her that kind of look UFOlogists get when they suddenly say, 'Hey, if you shade your eyes you can see it is just a flock of geese after all.'"

    "You can't erase icing."

    "I can't believe it doesn't work! I found it on the internet, man!"

  4. #4384
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    Another truck drove into our trestle the other day. This one has a listed height of seven inches taller than the clearance on all the signs with the flashing lights and so forth. Someone who saw it happen said the guy sped up, apparently in hopes of using a slipstream to get through, which would only have a chance if he'd had a shorter vehicle. Why would you risk that in a rental truck? Insurance apparently does not cover this damage as, you know, it's from being just willfully stupid.
    _____________________________________________
    Gillian

    "Now everyone was giving her that kind of look UFOlogists get when they suddenly say, 'Hey, if you shade your eyes you can see it is just a flock of geese after all.'"

    "You can't erase icing."

    "I can't believe it doesn't work! I found it on the internet, man!"

  5. #4385
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    There's a whole YouTube channel of trucks and RV's hitting a particular bridge somewhere. Even after they raised it some. Eleven-foot-eight or some such.
    Cum catapultae proscriptae erunt tum soli proscript catapultas habebunt.

  6. #4386
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    From the collection at 11'8"(+8) it is clear that rental trucks are significantly overrepresented among low-clearance collisions.

  7. #4387
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    Quote Originally Posted by Trebuchet View Post
    There's a whole YouTube channel of trucks and RV's hitting a particular bridge somewhere. Even after they raised it some. Eleven-foot-eight or some such.
    I think this is one of the more popular channels. Some of those trucks get opened up like a can of sardines.

  8. #4388
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    Quote Originally Posted by Gillianren View Post
    Another truck drove into our trestle the other day. This one has a listed height of seven inches taller than the clearance on all the signs with the flashing lights and so forth. Someone who saw it happen said the guy sped up, apparently in hopes of using a slipstream to get through, which would only have a chance if he'd had a shorter vehicle.
    Yes, relativistic length contraction doesn't work at right angles to the velocity vector.
    (I don't know what "slipstream" means in this context, but it seems like not a thing that would work, under any circumstances, with a vehicle of normal construction.)

    ETA: I guess if you were carrying some sort of tall inflatable structure that blew closer to the horizontal with increased speed, that might work. Seems a bit niche.

    Grant Hutchison
    Last edited by grant hutchison; 2021-Feb-26 at 02:48 PM.

  9. #4389
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    Apparently he was hoping that the clearance was a lie, I guess, and that while a vehicle as tall as his might get stuck, going fast enough would keep that from happening as the force of air around him would squeeze the truck through. This is an absolutely ludicrous belief. Even if he hadn't been wrong about how far above the clearance he was. My partner pointed out that, if his listed clearance had been perhaps an inch or so, it's theoretically possible albeit unlikely that the weight of his load could have pushed the truck down enough on the springs, but only theoretically, and if it would push you down seven inches, either your truck is broken or you've overloaded it.
    _____________________________________________
    Gillian

    "Now everyone was giving her that kind of look UFOlogists get when they suddenly say, 'Hey, if you shade your eyes you can see it is just a flock of geese after all.'"

    "You can't erase icing."

    "I can't believe it doesn't work! I found it on the internet, man!"

  10. #4390
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    Quote Originally Posted by Gillianren View Post
    Someone who saw it happen said the guy sped up, apparently in hopes of using a slipstream to get through, which would only have a chance if he'd had a shorter vehicle.
    I’m going to have to add the bit about a slipstream working in a shorter vehicle to the category of “stuff you just don’t get”.

    If “shorter” means “less long”, I don’t see how that would help.

    If “shorter” means “less high”, then a sufficiently reduced height ought to work with or without a slipstream.

    What am I missing here?
    Last edited by 21st Century Schizoid Man; 2021-Feb-26 at 03:45 PM.
    A: "Things that are equal to the same are equal to each other"
    B: "The two sides of this triangle are things that are equal to the same"
    C: "If A and B are true, Z must be true"
    D: "If A and B and C are true, Z must be true"
    E: "If A and B and C and D are true, Z must be true"

    Therefore, Z: "The two sides of this triangle are equal to each other"

  11. #4391
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    Oh, c'mon! You've all seen the cartoons where the car/truck/whatever gets going so fast it bends back and squishes down some. You just don't understand Looney Tunes Physics.
    Never attribute to malice that which can be adequately explained by ignorance or stupidity.
    Isaac Asimov

    You know, the very powerful and the very stupid have one thing in common. They don’t alter their views to fit the facts. They alter the facts to fit their views.
    Doctor Who

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  12. #4392
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    Quote Originally Posted by Jim View Post
    Oh, c'mon! You've all seen the cartoons where the car/truck/whatever gets going so fast it bends back and squishes down some. You just don't understand Looney Tunes Physics.
    Cartoon Laws of Physics
    At night the stars put on a show for free (Carole King)

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  13. #4393
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    The so-called slipstream didn't work any better up here and resulted in the great bridge-pocalypse of 2018...

    Click image for larger version. 

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    Credit: Imgur user, KissofPoseidon

    Southbound Glenn Highway shut down at South Eagle River by trailer that hit overpass, Anchorage Daily News

    And of course, one could get souvenir t-shirts on Facebook and Amazon.

    The Glenn Highway is the sole northbound route out of Anchorage, leading to places like Eagle River, Chugiak/Peters Creek, Wasilla, etc. They practically had to replace the entire overpass, so yeah, traffic was jacked up for weeks.
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  14. #4394
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    Our local grocery store sells store-branded “Rippled Potato Chips” as well as “Wavy Potato Chips”. Upon close inspection, the only difference is the wavelength of the ridges.
    I may have many faults, but being wrong ain't one of them. - Jimmy Hoffa

  15. #4395
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    Quote Originally Posted by Extravoice View Post
    Our local grocery store sells store-branded “Rippled Potato Chips” as well as “Wavy Potato Chips”. Upon close inspection, the only difference is the wavelength of the ridges.

    That would be funny if they marketed them that way.

    Now with a 4.7 mm wavelength!
    At night the stars put on a show for free (Carole King)

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  16. #4396
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    Quote Originally Posted by Extravoice View Post
    Our local grocery store sells store-branded “Rippled Potato Chips” as well as “Wavy Potato Chips”. Upon close inspection, the only difference is the wavelength of the ridges.
    Yup. Lays has "Ruffles" and "Wavy Lays" with the same difference.
    Cum catapultae proscriptae erunt tum soli proscript catapultas habebunt.

  17. #4397
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    Quote Originally Posted by 21st Century Schizoid Man View Post
    If “shorter” means “less high”, then a sufficiently reduced height ought to work with or without a slipstream.
    The understanding I have--and bear in mind I didn't actually talk to the guy myself, though Graham thinks he's moving into a house a couple of blocks from us--is that he thought the top of the truck would brush against the underside of the trestle, and going faster would help him slide through when going slower would mean he'd drag against it. I fully agree that this is ludicrous--again, not least because the top of his truck wouldn't brush against the underside but slam into the bridge. I'm just given to understand that this is what he thought.
    _____________________________________________
    Gillian

    "Now everyone was giving her that kind of look UFOlogists get when they suddenly say, 'Hey, if you shade your eyes you can see it is just a flock of geese after all.'"

    "You can't erase icing."

    "I can't believe it doesn't work! I found it on the internet, man!"

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