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General => Open Discussion => Topic started by: rcallicotte on June 19, 2007, 11:04:59 AM

Title: Anniversary of Eratosthenes Measuring the Earth
Post by: rcallicotte on June 19, 2007, 11:04:59 AM
Today's History Channel calendar is very relevant to TG2 fans -

"Eratosthenes, a Greek academic, was the founding father of geography.  He invented the system of latitude and longitude and, on this day [June 19th] in 240 BC, offered up the first measure of the planet Earth.  Modern mathematicians approximate that his calculations reflected a size of 25,000 miles in circumference, only 98 miles more than the modern value of 24,902 miles."
Title: Re: Anniversary of Eratosthenes Measuring the Earth
Post by: Will on June 19, 2007, 12:15:56 PM
yea I know, pretty crazy how smart some people are. (I have it on my calender)
Title: Re: Anniversary of Eratosthenes Measuring the Earth
Post by: rcallicotte on June 19, 2007, 12:34:09 PM
I like your footnote.  LOL
Title: Re: Anniversary of Eratosthenes Measuring the Earth
Post by: Harvey Birdman on June 19, 2007, 01:55:32 PM
Yeah, 2300 years ago a Greek mathematician calculated the diameter of the earth with less than .4% error.

About 5 (10?) years ago, NASA slammed a probe into Mars, accidentally destroying it because they hadn't (couldn't?) converted distance from metric to English units.

Still think we're getting smarter?

;D
Title: Re: Anniversary of Eratosthenes Measuring the Earth
Post by: Sethren on June 19, 2007, 02:12:50 PM
Just watch the movie "Idiocracy"    ;D

Title: Re: Anniversary of Eratosthenes Measuring the Earth
Post by: Will on June 19, 2007, 02:30:27 PM
Note the word some. Though I wonder if their heads were bigger back then. (Idiocracy plug)

Regards

Will