Path: csiph.com!4.us.feeder.erje.net!feeder.erje.net!nntp.club.cc.cmu.edu!micro-heart-of-gold.mit.edu!newsswitch.lcs.mit.edu!nntp.TheWorld.com!.POSTED!not-for-mail From: moroney@world.std.spaamtrap.com (Michael Moroney) Newsgroups: sci.physics,sci.math Subject: Re: Archimedes "Village Idiot" Plutonium flunked the Math Test of a lifetime-generation test Date: Thu, 1 Nov 2018 18:59:41 +0000 (UTC) Organization: The World : www.TheWorld.com : Since 1989 Lines: 78 Message-ID: References: NNTP-Posting-Host: shell01.theworld.com X-Trace: pcls7.std.com 1541098781 2859 192.74.137.71 (1 Nov 2018 18:59:41 GMT) X-Complaints-To: abuse@TheWorld.com NNTP-Posting-Date: Thu, 1 Nov 2018 18:59:41 +0000 (UTC) User-Agent: nn/6.6.5 Xref: csiph.com sci.physics:710808 sci.math:426581 Math Failure Archimedes Plutonium fails: >Why does Moroney and Christensen talk to Terry Tao as if a baby? Is it >because of ellipse or Calculus? There you go, projecting again. FAIL. >Why does Moroney talk to Dr. Meyer as if some baby? Is it because Meyer is >in denial the ellipse is never a conic section, always a cylinder section, Oh you want to see the ellipse proof Again!!! Here you go! Below you will find a simple *proof* that shows that certain conic sections are ellipses. Some preliminaries: Top view of the conic section and depiction of the coordinate system used in the proof: ^ x | -+- <= x=h .' | `. . | . | | | ' | ' `. | .' y <----------+ <= x=0 Cone (side view): . /|\ / | \ /b | \ /---+---' <= x = h / |' \ / ' | \ / ' | \ x = 0 => '-------+-------\ / a | \ Proof: r(x) = a - ((a-b)/h)x and d(x) = a - ((a+b)/h)x, hence y(x)^2 = r(x)^2 - d(x)^2 = ab - ab(2x/h - 1)^2 = ab(1 - 4(x - h/2)^2/h^2. Hence (1/ab)y(x)^2 + (4/h^2)(x - h/2)^2 = 1 ...equation of an ellipse qed >Michael Moroney writes: >Oct 31 (10 hours ago) >>[Plutonium's posts are nothing but] 25 years of babbling and >>attacking other posters, no math, no physics, only attacks and babble. No comment, Failure Plutonium? >On Monday, May 14, 2018 at 3:10:12 PM UTC-5, Michael Moroney wrote: >> >>No answer? >> >> >> >>Can you round off 105.658 to three digits? >> >>What is 106*9? >> >>What is 105.658*9? >> >>What is 105.658*9-938? >> >>If someone owed you $900.00 and he gave you $888.00, would you be >> >>satisfied that he paid you back in full? Thanks for reminding me! You never did answer these simple questions!