2007-03-14 00:22:49 · 10 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
The earth's area is approx :
196 940 400 square mile = 510 073 294 444 816 000 000 square millimeter
2007-03-14 00:27:13 · answer #1 · answered by Anonymous · 1⤊ 0⤋
I have to think along the same lines as the Tank on this one.
As you are seeking an answer in somethign so precise as the mm2, I am afraid that we are not going to get a very accurate measurment very quickly.
Not only is the earth not a neatly flat surface, and not a neatly square surface, but, the earth's oblate spherical shape is in constant change, due to the various sizes of the various waves of the ocean, and the various shapes of the various snow drifts.
Although we can pretty closely approximate the square mileage of the surface area of the earth, the smaller the unit of measurment we try to use, the less accurate we are going to become in our measurment, until some astronautical program launches into space an array of extremely precise laser measuring satellites, that can scan the entire earth, in sections along the lines of the square micron in size.
Then, and only then, will we be capable of measuring the earth in approximate square millimeters.
2007-03-15 06:49:06 · answer #2 · answered by Robert G 5 · 0⤊ 0⤋
It isn't square, it's an oblate spheroid.
Sorry, I couldn't resist that.
Because the planet isn't a perfect sphere by a very large deviation, it's beyond simple maths to calculate the surface area based on a 25000 mile equator. The 'diameter' mesaured along the Prime Meridian and it's opposite will be less than that of the equator.
Also, the polar flattening isn't the same at both poles.
Someone will have a go for you but remember that it will probably be abour 20% under estimated.
2007-03-14 06:35:25 · answer #3 · answered by Anonymous · 0⤊ 0⤋
So you are from the Square Earth Society??!
2007-03-14 04:21:59 · answer #4 · answered by andy muso 6 · 0⤊ 0⤋
Just got back from measuring.
According to MY ruler, it's somewhere between....well....almost EXACTLY really, 17.5 mm sq
Much smaller than I would have thought.
Mind you, I WAS holding the ruler REALLY close to my face.
Small world eh?
2007-03-14 05:11:54 · answer #5 · answered by johncee 2 · 0⤊ 0⤋
It keeps changing. but I know its very big loads of numbers in a line kind of big
2007-03-14 03:20:42 · answer #6 · answered by Shane 3 · 0⤊ 0⤋
how did TMLEAF work that one out!!
beat me that one
just one qeustion though isn't the earths crust(plates) moving all the time !!
wil
2007-03-14 00:36:57 · answer #7 · answered by Anonymous · 0⤊ 0⤋
First answer should be 10 times bigger.
2007-03-14 02:56:35 · answer #8 · answered by Pete WG 4 · 0⤊ 1⤋
100mm's less than 2 mins. ago
2007-03-14 02:39:21 · answer #9 · answered by Kenchelski 1 · 0⤊ 0⤋
erm.... I would say a lot,
2007-03-14 00:27:58 · answer #10 · answered by christine j 1 · 0⤊ 0⤋