Genius, shear Genius. mark.....lol
From: Henk Verhaar <[EMAIL PROTECTED]> Reply-To: <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Subject: Re: [VFB] Thread FYI Date: Fri, 3 Dec 2004 22:11:04 +0100
On 2-dec-04, at 22:29, I myself wrote:
A thread that is twice as heavy per length as a structurally similar other thread is not twice as thick but sqrt(2), or 1.41 times as thick, since weight is proportional to volume, and with equal length with diameter. But again 8 / 1.41 is not 6, so there still is no real logic in the 'ought' numbers.
I rechecked Jean-Guy's web site for the exact denier numbers on UNI 6/0 and 8/0: 6/0 is 130 den and 8/0 is 72 den. 130/72 = 1.81. Sqrt(1.81) = 1.34. 6 * 1.34 = 8.06. So for UNI 6/0 and 8/0 there appears to be a rationale behind the ought numbers after all.
However, the 17/0 still falls short. It is 40 den. 72/40 = 1.8. Sqrt(1.8) = 1.34. 8 * 1.34 = 10.7. SO according to this rationale 17/0 should be 11/0...
Hope this makes sense to some of you ;-)
==========================Heisenberg was right!======================== | Dr. Henk J.M. Verhaar | | | Environmental Fate and Ecotoxicology Specialist | | Fly Tier | web: www.xs4all.nl/~flyrod | | Stichts End 17 | e-mail: [EMAIL PROTECTED] | | NL-1244 PK Ankeveen | phone: +31 35 656 2128 | | the Netherlands | ICQ: 15727113 | ==========================Uncertainty happens!=========================
