### Why 360?

Sunday, October 4, 2009
Why 360?

Well long, long, long ago, before we were born the Sumerians, then later the Babylonians had a number system called sexagesimal. (you can call it as a base of 60 numeral system)Instead of our numeral system base 10, they used base 60. Now why 360? Well, did you notice that the number of days in a year,365 is close to 360? The Babylonians noticed that celestial pole moved everyday; about one degree of a circle(1/360). So they used 360 in their calander then 365 like ours. So maybe thats why they chose 360.
Oh! also its because it has so many divisible numbers! In fact 24 divisors!(isn't that a lot?)
360 is divisible by...
1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, and 360.

melanie905 said...

Great post Kim! I liked how you used some colours, but I don't think you should use light pink, because it could be hard to see for other readers. Your picture is awesome, and it really helps with you explanations. Awesome work!

melanie905 said...

your*

Lissa 9-05 said...

Hey Kim! Nice post! You did a great job, but one thing is, I think I agree with Melanie when she said that you shouldn't use light pink. Or if you want, you can always bold the light pink, that way its alot thicker and easier to see (: