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Thread: Physically Impossible!

  1. #16
    2003 BB&B Basketball Pick 'Em Champion inudesu has a reputation beyond reputeinudesu has a reputation beyond reputeinudesu has a reputation beyond reputeinudesu has a reputation beyond reputeinudesu has a reputation beyond reputeinudesu has a reputation beyond reputeinudesu has a reputation beyond reputeinudesu has a reputation beyond reputeinudesu has a reputation beyond reputeinudesu has a reputation beyond reputeinudesu has a reputation beyond repute inudesu's Avatar
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    Re: Physically Impossible!

    Quote Originally Posted by dawg80 View Post
    I knew it. Just surprised it took so long for one of you morons to post a silly BMX bike trick video as support for your misguided argument.

    PLEASE!!! I beg you, PLEASE convince some pro rider to do a bunny hop as he approaches the finish line in an all-out sprint at 40 mph. He'll look awful silly as 20 riders fly by him in a flash and beat him to the line.

    Actually, I don't think y'all believe that nonsense either. Just trying to yank my chain.
    If you knew that stating something clearly untrue
    I cannot completely lift a bike off the ground while riding it. I mean both wheels off the ground...and neither can you.
    would be debunked, only to be followed by you changing the argument, then why weren't you more clear when making such a categorical statement?

  2. #17
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    Re: Physically Impossible!

    Quote Originally Posted by Guisslapp View Post
    This whole discussion is about as pedantic and boring as watching people ride bicycles.
    Or F-1 cars go around in circles.

  3. #18
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    Re: Physically Impossible!

    Quote Originally Posted by inudesu View Post
    Or F-1 cars go around in circles.
    That would be boring, that is why they do road courses only.

  4. #19
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    Re: Physically Impossible!

    Just allowing all the nay-sayers, to my point, to have their say. Is the bunny hop the best of y'all's supporting evidence? Anything else?

  5. #20
    Dawg Adamant Argument Czar Guisslapp has a reputation beyond reputeGuisslapp has a reputation beyond reputeGuisslapp has a reputation beyond reputeGuisslapp has a reputation beyond reputeGuisslapp has a reputation beyond reputeGuisslapp has a reputation beyond reputeGuisslapp has a reputation beyond reputeGuisslapp has a reputation beyond reputeGuisslapp has a reputation beyond reputeGuisslapp has a reputation beyond reputeGuisslapp has a reputation beyond repute Guisslapp's Avatar
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    Re: Physically Impossible!

    Quote Originally Posted by dawg80 View Post
    Just allowing all the nay-sayers, to my point, to have their say. Is the bunny hop the best of y'all's supporting evidence? Anything else?
    To debunk the claim that you can’t lift a bike while riding it?

  6. #21
    Dawg Adamant Argument Czar Guisslapp has a reputation beyond reputeGuisslapp has a reputation beyond reputeGuisslapp has a reputation beyond reputeGuisslapp has a reputation beyond reputeGuisslapp has a reputation beyond reputeGuisslapp has a reputation beyond reputeGuisslapp has a reputation beyond reputeGuisslapp has a reputation beyond reputeGuisslapp has a reputation beyond reputeGuisslapp has a reputation beyond reputeGuisslapp has a reputation beyond repute Guisslapp's Avatar
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    Re: Physically Impossible!

    I could probably also prove the theoretical possibility using Newton’s laws, but you wouldn’t understand it.

  7. #22
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    Re: Physically Impossible!

    i'm still not understanding why the bike needs to leave the ground.

  8. #23
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    Re: Physically Impossible!

    Here is an article on why some think throwlng a hike may work: http://www.velonews.com/2016/07/bike...e-throw_416067

    Dawg80, you riding this summer? I'm up to 30, but that's as long as I'll go. Doing some aquabikes this summer, swims of 1000 yards to a mile followed by 19 to 28 mile bikes. Ankles have ended my running. Really have enjoyed riding this spring.

  9. #24
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    Re: Physically Impossible!

    Quote Originally Posted by Russdawg View Post
    Here is an article on why some think throwlng a hike may work: http://www.velonews.com/2016/07/bike...e-throw_416067
    that's exactly what i was trying to explain. and while some may "think" it works, many more know it because the basic laws that govern nature are very predictable, especially the ones we understand as well as newtonian physics.

    side note: the biking portion is the only part of a triathlon i hate (long story -- it involves painful memories of champagnolle road and a cheap mountain bike).

  10. #25
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    Re: Physically Impossible!

    Quote Originally Posted by Russdawg View Post
    Here is an article on why some think throwlng a hike may work: http://www.velonews.com/2016/07/bike...e-throw_416067

    Dawg80, you riding this summer? I'm up to 30, but that's as long as I'll go. Doing some aquabikes this summer, swims of 1000 yards to a mile followed by 19 to 28 mile bikes. Ankles have ended my running. Really have enjoyed riding this spring.
    Had a long struggle with illness, dating back to December. Just now feeling better, and getting out on the bike again. Well, I have ridden this spring, but usually only 8-10 miles at a time and only 3 or 4 times per week. Sometimes not that often. Just felt like crap. Had a very serious lung infection and it's hard to ride a bike when it's hard just to breathe! I consider it a "win" just to be able to ride and get off the bike not coughing myself silly.

    As for the "bike throw" thing, thanks for the article, but it still doesn't convince me. The examples used to "prove" it's possible are all irrelevant to the situation. Runners CAN bend forward while still running to win a close race. Someone CAN propel a boat forward by exerting force at the back of the boat....and then fall in the water for their effort. Someone CAN bunny hop a bike, which is vertical movement, UP, not FORWARD. But NONE of those are applicable to gaining a slight edge at the finish line of pro bike race. The winner won without any benefit from the bogus "bike throw" and in fact would have won more easily had they just kept pumping the peddles and maintained the strict aerodynamic position on the bike. The frame by frame evidence clearly shows this. The "bike thrower" has slowed down and the rider(s) who kept peddling "fly" by the winner in the frames immediately after crossing the line. That's because they have maintained their speed while the silly "bike thrower" has lost his momentum forward.

    I first noticed this back in 2002 when I first subscribed to the Tour's pay-for website and watched, then studied, the finishes. At first, accepting that the bike throw actually works, I ignored that factor and instead focused on the riders themselves. Robbie McEwen was the best sprinter back then. He and "The Italian Lion" used to battle down to the wire in very close finishes. There were others that would, on any given day, have a great day and challenge those two down to the wire. So, there would often be 4-6 riders all within one bike length hitting the line together.

    What caught my attention was a finish where some rider seemingly had won the stage only to get nipped on the line. That rider went into the "bike throw" about one meter from the line and lost his momentum and was passed by the rider who just kept peddling hard. The difference in speed between the two was stark. In fact, the bike thrower almost missed finishing second as another rider, still peddling almost passed him too.

    This is what I noticed from studying the frame by frame and the super slow motion of those close finishes. The common denominator I noticed was the "bike throwers" all, to a rider, greatly slowed down while the peddlers maintained their forward speed.

    Now, is it strictly a matter of precise timing? In other words, doing a bike throw one meter from the line is too soon. Have to wait until that precise split second? Hmmmm..... I still don't see it. At 40mph these pro riders cover one meter in...what, a 10th of a second? Someone do the math.

    If you watch these sprint finishes with a scientific eye the winners "win" and the losers "lose" at some other point in the last 500 meters, 200 meters, 100 meters, and the last 25 meters because the winner got it exactly right, and the others lost momentum somewhere in the traffic, often having to go around a slowing rider.

    BUT! I appreciate everyone's participation in this thread. Thanks!

    Now, even goosey will tune in to the Tour just to watch those incredible sprint finishes and seek to learn if the "bike throw" actually works or not.

  11. #26
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    Re: Physically Impossible!

    It doesn’t take much evidence for me to agree that the bike throw is bogus. As a 10 year old, riding all the time, it was easy to notice that momentum is lost when either or both tires are off the ground. And lunging only screws up weight distribution and aerodynamics.

  12. #27
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    Re: Physically Impossible!

    April 2018 rode Bike up mountain in Queenstown new Zealand -- took monster spill at top of mountain. Rehab is doing great .

  13. #28
    Dawg Adamant Argument Czar Guisslapp has a reputation beyond reputeGuisslapp has a reputation beyond reputeGuisslapp has a reputation beyond reputeGuisslapp has a reputation beyond reputeGuisslapp has a reputation beyond reputeGuisslapp has a reputation beyond reputeGuisslapp has a reputation beyond reputeGuisslapp has a reputation beyond reputeGuisslapp has a reputation beyond reputeGuisslapp has a reputation beyond reputeGuisslapp has a reputation beyond repute Guisslapp's Avatar
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    Re: Physically Impossible!

    Quote Originally Posted by techman05 View Post
    It doesn’t take much evidence for me to agree that the bike throw is bogus. As a 10 year old, riding all the time, it was easy to notice that momentum is lost when either or both tires are off the ground. And lunging only screws up weight distribution and aerodynamics.
    Ever heard of conservation of momentum? This is obviously something you do at the last second so he consequence of losing your aero of your stride would be inconsequential if timed properly.

  14. #29
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    Re: Physically Impossible!

    Quote Originally Posted by arkansasbob View Post
    that's exactly what i was trying to explain. and while some may "think" it works, many more know it because the basic laws that govern nature are very predictable, especially the ones we understand as well as newtonian physics.

    side note: the biking portion is the only part of a triathlon i hate (long story -- it involves lunch memories of champagnolle road and a cheap mountain bike).
    Are you doing any this summer? I like to do one a month and make a weekend of it: Fayetteville, Austin, Dallas, McKinney. Really slow at 68 but still getting out there.

  15. #30
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    Re: Physically Impossible!

    Dawg80, good to hear you're back out there. You must've had a rough winter with the illness and the loss of your mother. Keep 'em spinning. Not too long until the extra motivation the Tour brings. I like the gruelling climbs, seeing the ones with the legs and guts and nuts to power up those mountains. They are MEN!

    https://youtu.be/MdMdJAdzpYQ

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