Re: Yes, I'm back
|From:||Dennis Paul Himes <himes@...>|
|Date:||Monday, January 20, 2003, 3:37|
James Landau <Neurotico@...> wrote:
> I've usually seen [the date of Jesus' birth] given as "4 B.C.". (If you
> can think of any other way to express the would-be year 0 that marked the
> transition from B.C. to A.D., tell me). Of course there had to be some
> significance to "0" too, or else why would anyone have started there if
> they knew he wasn't born at that point?
There is no year 0 in the BC/AD system. 1 AD is the year following
> Well, when I say a "day", I mean the amount of time it takes for Kankonia
> to complete one full rotation on its axis.
Not the time from noon to noon? They're not the same. Earth completes
a full rotation in about 23 hours and 56 minutes.
> (This leads to another question: is there anyone here who knows how to
> find out how fast a planet will rotate on its axis or complete a year,
> given its volume, mass and distance from the sun?)
See the Planet Designer at
http://www.compulink.co.uk/~vicarage/planets/index.html. I believe the
speed of rotation is only constrained by not being fast enought to tear the
planet apart, but the length of year is dependent on the distance from the
sun and the mass of the sun.
Dennis Paul Himes <> firstname.lastname@example.org
Gladilatian page: http://home.cshore.com/himes/glad/lang.htm
Disclaimer: "True, I talk of dreams; which are the children of an idle
brain, begot of nothing but vain fantasy; which is as thin of substance as
the air." - Romeo & Juliet, Act I Scene iv Verse 96-99