Originally Posted by
cyccommute
Oh gods! Here we go again. I am the one who said it is impossible to predict the way something collapses. You’ve said “[the spaghetti] always buckles on the same side of its strand no matter which direction you lean it.” I have always maintained that it is impossible to predict which way something will collapse.
Nope. Nice attempt at attempting to save face after losing hehe. You were adamant that with the broom/spaghetti leaning, it would always collapse the same way. Now you've admitted it would collapse in a random way.
I see you tried to cheat the argument by misquoting me. Where you quoted me I was talking about vertical spaghetti buckling due to built in weakness (which you also admitted in your last post fyi). In my most recent challenge to you where you finally admitted your mistake, we were talking about a leaning situation.
Originally Posted by
cyccommute
Physics does not work that way.
This is about frame of reference. You are turning left and your bike is leaning left. Your nose is to the left of the headset. The moment the snot leaves your nose it's going to begin flying in a straight line along the tangent. It will no longer be taking a curved path. Meanwhile you are continuing your curve left. By the time the snot has dropped near the headset, the bike frame has curved left to meet it. As you can see, from the perspective of a person standing nearby, the snot is traveling perpendicular toward the ground, but from the frame of reference of the cyclist, the snot is falling diagonally toward the centerline of the frame. We are analyzing forces on the bike, so we have to analyze in the frame of reference of the bike, not in the frame of reference of a stationary outside observer. Understand now?
In the same way, the bike (including the wheel) is experiencing a purely "downward" force, where the "downward" is not perpendicular to the ground, but instead leaned at an angle. It is 100% downward in its own frame of reference. Since the force is completely in plane with the wheel, there is no sideways force trying to bend the wheel into a taco.
Were you able to follow along with my explanation? I tried to make it clear.
Originally Posted by
cyccommute
...will be under the influence of gravity and will drop straight down perpendicular to the ground. It will not fall at an angle towards the headset.
I'm glad you stated your belief in such a clear way. Now you cannot back away from it. Let us cut through all your self-confused mumble jumbo and end the argument right here.
You're saying that if you hold a plumb bob in your teeth while riding in a circle, the plumb bob will not fall toward the headset. You are saying it will fall perpendicular to the ground.
Are you willing to take a bet? If you agree I will go out and make a video the next day. Whichever one of us loses agrees to sit his dumb ass down.
I have a bike with aerobars. I can use the aerobars to hang the plumb bob instead of my teeth. This way it will be impossible for me to move my head around and cheat. I will then ride in a circle and record the result with my phone.
We will be able to see whether the plumb bob falls perpendicularly toward the ground as you claim, or falls toward the tire (bike center line) as I claim.
What is your response? Accept the bet or not?