"I always figured if man had two fingers, we'd all count in binary." So how come we didn't end up using base 21? :-) :-) :-) ----- Original Message ----- From: "Al Williams" To: Sent: Friday, March 08, 2002 11:23 AM Subject: Re: [OT]: US and Metric System: UK viewpoint > The Sumerians used base 60 which is convenient for dividing and > multiplying as it has factors of 2, 3, 4, 5, 6, 10, 12, 15, 20, and 30. > The Sumerians also divided the circle into 360 degrees as an echo of the > days of the year. Fragments of this Sumerian legacy live on in our > modern expression of angles in 'degrees, minutes and seconds' and our > similar division of the day into 'hours, minutes and seconds' -all in > base 60. The word dozen derives from a Sumerian word meaning 'A fifth > of 60'. > > Babylonians took over the same system from the Sumerians. From there, I > think it passed to the Semites and then to the Phoenicians. > > I always figured if man had two fingers, we'd all count in binary. > > The Mayans had a base 20, used positional notation and knew about 0. > > Egyptians used base 10 with an additive system (similar to Roman > notation) and had been using it since at least 1450BC. > > Al Williams > AWC > * Easy RS-232 Prototyping > http://www.al-williams.com/awce/rs1.htm > > > > > > > -----Original Message----- > > From: pic microcontroller discussion list > > [mailto:PICLIST@MITVMA.MIT.EDU] On Behalf Of Harold M Hallikainen > > Sent: Friday, March 08, 2002 11:01 AM > > To: PICLIST@MITVMA.MIT.EDU > > Subject: Re: [OT]: US and Metric System: UK viewpoint > > > > > > On Fri, 8 Mar 2002 11:36:36 -0800 Bob Ammerman > > > > writes: > > > > > A circle is divided into 360 degrees. Anyone in favour of making > > > that > > > > > 100? > > > > > > 400 makes some kind of sense (100 per quadrant) > > > > > > > Doesn't the 360 degree circle follow from some > > ancient civilization that used a base 60 number system? And > > our 60 minutes per hour, 60 seconds per minute, etc. Anyone > > remember the Saturday Night Live skit on the metric day? Just > > like the current day, but it has 100 hours... I've had days > > like that... > > > > Harold > > > > > > FCC Rules Online at http://hallikainen.com/FccRules > > Lighting control for theatre and television at > > http://www.dovesystems.com > > > > > > ________________________________________________________________ > > GET INTERNET ACCESS FROM JUNO! > > Juno offers FREE or PREMIUM Internet access for less! > > Join Juno today! For your FREE software, visit: > > http://dl.www.juno.com/get/web/. > > > > -- > > http://www.piclist.com hint: PICList Posts must start with ONE topic: > > [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads > > > > -- > http://www.piclist.com hint: PICList Posts must start with ONE topic: > [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads > > > -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads