Except that Pat's proposal is in essence exactly the same as the framework for the grade/gon. The only difference is in the number of decimal places. While there would be 100 gr to a 1/4 circle, there would be 1000 mq to the same quarter circle in Pat's proposal.
As we've debated this before though I'd still favor the gon over the quad simply due to its slightly "smaller" value and association with the percentage and "money" concepts. People seem to feel more comfortable around 2 digits rather than 3 (however I do concede this not necessarily being the case in some applications, like the gram and the milliliter). What I mean is, 0.01 gr could simply mean 1 km for aviation navigation if the "right" diameter is adopted for the circumference of the earth. So, aviation (and the military) could use angles to two decimal places, just like with money, among other things. Marcus On Tue, 15 Jul 2003 07:01:15 Pat Naughtin wrote: >Dear Terry, > >Unfortunately, I have lost your last posting, but, from memory you wrote: > >** begin memory > >the NATO unit of angle is the 'mil' and this is useful because > >1 mil ~ 1 metre at 1 km > >6400 mil = 2000pi mrad = 360 deg > >** end memory > >When I calculated 2000 x pi, I got 6238.185, and although this is >approximately equal to 6400 mil, it is not sufficiently precise for it to be >used as the basis of a measuring system. At best it is an approximation or a >reasonably good 'rule of thumb'. > >I favor the idea of renaming the right angle as the 'quad' (with milliquads, >microquads etc.) as the basis for the best choice for practical angle >measurements in SI. If you would like me to elaborate on this let me know >and I will send you a short essay on the quad. > >As a matter of interest, an angle of 1 milliquad would subtend a distance of >785 millimetres at a distance of 1 kilometre. > >Cheers, > >Pat Naughtin LCAMS >Geelong, Australia > >Pat Naughtin is the editor of the free online newsletter, 'Metrication >matters'. You can subscribe by sending an email containing the words >subscribe Metrication matters to [EMAIL PROTECTED] >-- > > ____________________________________________________________ Get 25MB of email storage with Lycos Mail Plus! Sign up today -- http://www.mail.lycos.com/brandPage.shtml?pageId=plus
