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Re: experiment takes only a can of veggies to prove ellipse is not a conic section Re: Oval is conic section, never a ellipse. Ellipse is a cylinder section

From moroney@world.std.spaamtrap.com (Michael Moroney)
Newsgroups sci.physics, sci.math
Subject Re: experiment takes only a can of veggies to prove ellipse is not a conic section Re: Oval is conic section, never a ellipse. Ellipse is a cylinder section
Date 2017-08-07 04:31 +0000
Organization The World : www.TheWorld.com : Since 1989
Message-ID <om8qel$q18$4@pcls7.std.com> (permalink)
References <1b2f057b-77cc-4bb9-9ca2-258493c40100@googlegroups.com> <8645a8b4-356d-49f8-b96f-739c7a1aa5e7@googlegroups.com> <9bd59305-4679-42c4-ba97-1b6dd1474ea3@googlegroups.com>

Cross-posted to 2 groups.

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Archimedes Plutonium <plutonium.archimedes@gmail.com> fails at math as he writes:

>Proof Statement:: The diagonal cut in the cylinder has an entry cut and a
>exit cut. Since a cylinder is composed of equal circles stacked, means 
>the entry cut circle equals the exit cut circle, hence 2 axes of 
>symmetry. The conic section, the entry circle is far smaller than exit 
>circle, hence only 1 axis of symmetry. QED

Silly Archie, we're not trying to prove whether the generating circle of a
cone nearer the apex is smaller that another generating circle further
away. In order to prove the intersecting curve is or is not an ellipse,
you have to calculate the equation of the curve formed by the intersection
and see if it matches that of an ellipse or not. So you would need to
calculate the curve equation given the cone parameters and the angle the
intersecting plane makes with the cone base.

Perhaps you were fooled by it being counterintuitive that such an
intersection would make an ellipse with two axes of symmetry. But
counterintuitive doesn't necessarily mean false, it is counterintuitive
that it is possible to form a hyperboloid of one sheet (think of nuclear
power plant cooling tower) entirely from *straight* lines, but you can.

(Now will you attempt to either calulate the formula for the curve of
the intersection or about the hyperboloid, or will you fail yet again by
attacking me?)

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Oval is conic section, never a ellipse. Ellipse is a cylinder section. Failures of physics- Hawking, Brian Greene, Tyson, Higgs, Arindam Banerjee, Mike Moroney, James McGinn Archimedes Plutonium <plutonium.archimedes@gmail.com> - 2017-08-03 12:57 -0700
  Re: Oval is conic section, never a ellipse. Ellipse is a cylinder section. Failures of physics- Hawking, Brian Greene, Tyson, Higgs, Arindam Banerjee, Mike Moroney, James McGinn Archimedes Plutonium <plutonium.archimedes@gmail.com> - 2017-08-03 13:37 -0700
    Re: Oval is conic section, never a ellipse. Ellipse is a cylinder section. Failures of physics- Hawking, Brian Greene, Tyson, Higgs, Arindam Banerjee, Mike Moroney, James McGinn Archimedes Plutonium <plutonium.archimedes@gmail.com> - 2017-08-03 14:41 -0700
      Re: Oval is conic section, never a ellipse. Ellipse is a cylinder section. Failures of physics- Hawking, Brian Greene, Tyson, Higgs, Arindam Banerjee, Mike Moroney, James McGinn benj <benj@nobody.net> - 2017-08-03 18:26 -0400
      Re: Oval is conic section, never a ellipse. Ellipse is a cylinder section. Failures of physics- Hawking, Brian Greene, Tyson, Higgs, Arindam Banerjee, Mike Moroney, James McGinn poraty350@gmail.com - 2017-08-17 01:53 -0700
        Re: Oval is conic section, never a ellipse. Ellipse is a cylinder section. Failures of physics- Hawking, Brian Greene, Tyson, Higgs, Arindam Banerjee, Mike Moroney, James McGinn poraty350@gmail.com - 2017-08-17 02:07 -0700
  Re: Oval is conic section, never a ellipse. Ellipse is a cylinder section. Failures of physics- Archimedes Plutonium moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-08-04 02:35 +0000
  experiment takes only a can of veggies to prove ellipse is not a conic section Re: Oval is conic section, never a ellipse. Ellipse is a cylinder section Archimedes Plutonium <plutonium.archimedes@gmail.com> - 2017-08-03 23:23 -0700
    Re: experiment takes only a can of veggies to prove ellipse is not a conic section Re: Oval is conic section, never a ellipse. Ellipse is a cylinder section Archimedes Plutonium <plutonium.archimedes@gmail.com> - 2017-08-04 11:25 -0700
      Re: experiment takes only a can of veggies to prove ellipse is not a conic section Re: Oval is conic section, never a ellipse. Ellipse is a cylinder section Archimedes Plutonium <plutonium.archimedes@gmail.com> - 2017-08-04 11:56 -0700
        Re: experiment takes only a can of veggies to prove ellipse is not a conic section Re: Oval is conic section, never a ellipse. Ellipse is a cylinder section Archimedes Plutonium <plutonium.archimedes@gmail.com> - 2017-08-04 16:12 -0700
    Re: experiment takes only a can of veggies to prove ellipse is not a conic section Re: Oval is conic section, never a ellipse. Ellipse is a cylinder section Archimedes Plutonium <plutonium.archimedes@gmail.com> - 2017-08-06 17:08 -0700
      Re: experiment takes only a can of veggies to prove ellipse is not a conic section Re: Oval is conic section, never a ellipse. Ellipse is a cylinder section moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-08-07 04:31 +0000
      Re: experiment takes only a can of veggies to prove ellipse is not a conic section Re: Oval is conic section, never a ellipse. Ellipse is a cylinder section Archimedes Plutonium <plutonium.archimedes@gmail.com> - 2017-08-14 10:33 -0700
  Re: Oval is conic section, never a ellipse. Ellipse is a cylinder section. Failures of physics- Hawking, Brian Greene, Tyson, Higgs, Arindam Banerjee, Mike Moroney, James McGinn bursejan@gmail.com - 2017-08-04 19:44 -0700
    Re: Oval is conic section, never a ellipse. Ellipse is a cylinder section. Failures of physics- Hawking, Brian Greene, Tyson, Higgs, Arindam Banerjee, Mike Moroney, James McGinn bursejan@gmail.com - 2017-08-05 04:48 -0700
      Re: Oval is conic section, never a ellipse. Ellipse is a cylinder section. Failures of physics- Hawking, Brian Greene, Tyson, Higgs, Arindam Banerjee, Mike Moroney, James McGinn bursejan@gmail.com - 2017-08-05 06:28 -0700
  Re: Oval is conic section, never a ellipse. Ellipse is a cylinder section. Failures of physics- Hawking, Brian Greene, Tyson, Higgs, Arindam Banerjee, Mike Moroney, James McGinn bursejan@gmail.com - 2017-08-15 17:44 -0700
  Re: Oval is conic section, never a ellipse. Ellipse is a cylinder section. Failures of physics- Hawking, Brian Greene, Tyson, Higgs, Arindam Banerjee, Mike Moroney, James McGinn bursejan@gmail.com - 2017-08-17 01:18 -0700
  Re: Oval is conic section, never a ellipse. Ellipse is a cylinder section. Failures of physics- Hawking, Brian Greene, Tyson, Higgs, Arindam Banerjee, Mike Moroney, James McGinn bursejan@gmail.com - 2017-08-26 16:46 -0700

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