Different type of habitat

On Sep 1, 2006, at 1:41 PM, Lucio de Souza Coelho wrote:

> > The Time Almanac 2001 gives total area of Earth as 148,429,000Km
> sq so you
> > have a habitat with about 1.5 times the surface area of the Earth.
> > The same reference gives the total land area of Earth as about
> 57,308,738Km
> > sq, so your habitat now has about 4 times the land area of the
> Earth.
>
> I think that there is an error in the Time Almanac, then. The surface
> of an sphere is given by 4*pi*r . r=6,380 Km for Earth. Thus the
> total are of Earth is 512 million square kilometers.
>
> The Wikipedia page on Earth confirms my calculation:
> http://en.wikipedia.org/wiki/Earth . Also, it is interesting to note
> that the land are of Earth is 148 million square kilometers, so
> apparently the Almanac mistakenly considered Earth's land are as the
> total are of the planet.

Well, they say the internet has made the world smaller.....