Originally posted by AttilaTheHornIt doesn't make sense to say that you would be out by a few feet if you have to make the assumption that the Earth is a perfect sphere. It all depends what radius you assume. Although you can make a reasonable approximation about how much you will be out by. 🙂
If you take the number 2143, divide it by 22, and then take the 4th root of the result (in other words, take the square root twice), you'll get a number which is incredibly close to the number pi, and it's more accurate that any approximation you'll ever need.
If you measured the circumfrance of the earth at the equator with this number, assuming the earth is a perfect sphere which it isn't, you'd be out by only a few feet.
EDIT: Just done some calculations and based on the ratio between the result from that calculation and pi itself and assumed a circumference of 25000 miles, you will actually be out by about half an inch. 😉
EDIT2: Suppose your point is reasonable, as the variation depending on radius is so small that it does not matter.
Another Edit: Did my calculation wrong. 😕
Originally posted by lauseySo my point is then valid. If you use my number to calculate how far the earth moves around the sun in one year, assuming the distance from the earth to the sun is 93,000,000 miles and assuming that this path the earth moves traces out a perfect circle (which is not actually true), you'd be out by only about 1000 feet. That's a lot more accuracy that even NASA needs for its initial calculations.
It doesn't make sense to say that you would be out by a few feet if you have to make the assumption that the Earth is a perfect sphere. It all depends what radius you assume. Although you can make a reasonable approximation about how much you will be out by. 🙂
EDIT: Just done some calculations and based on the ratio between the result from that calculati ...[text shortened]... g on radius is so small that it does not matter.
Another Edit: Did my calculation wrong. 😕
Originally posted by AttilaTheHornYes, I agree. Your point is valid. Hence my edits. 😉
So my point is then valid. If you use my number to calculate how far the earth moves around the sun in one year, assuming the distance from the earth to the sun is 93,000,000 miles and assuming that this path the earth moves traces out a perfect circle (which is not actually true), you'd be out by only about 1000 feet. That's a lot more accuracy that even NASA needs for its initial calculations.
Originally posted by NordlysThey all start with "a" in Irish
That depends on the language.
okta = 1 (North Sami)
futatsu = 2 (Japanese)
kaksi = 2 (Finnish)
quatre = 4 (French)
acht = 8 (German)
atten = 18 (Norwegian)
a haon
a dó
a trí
a ceathair
a cúig
a sé
a seacht
a hocht
a naoi
a deich
Even 0, "nialas" has 2 "a"s in it.