Obviously the further North and South it will decrease, but What is the distance between lines of Longitude at the Equator? KM or Miles whichever you prefer.
I will give the correct answer with 5 KM/Miles to start with and see how it goes.
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Obviously the further North and South it will decrease, but What is the distance between lines of Longitude at the Equator? KM or Miles whichever you prefer.
I will give the correct answer with 5 KM/Miles to start with and see how it goes.
I guess the answer depends on how far apart the lines of longitude are :sailor:
360° apart would be 0km
10° apart would be roughly 40000km / 36
1° apart would be roughly 40000km / 360
1' apart would be above/60
:)
So what is exactly is the answer you have given? KM/miles?
Cause nothing I can see quite matches the answer. :p Right way of working, just not quite the answer.
I don't know but I will make a guess that it is 100km.Quote:
Originally Posted by steveaki13
Not quite. Closer than Donkey mostly because I understand your guess. ;)
Before the revolution the French measurement system was chaotic. For example they reputedly measured distance in 'shouts' - how far a shout could be heard. So they rationalised things.
Angles were to be measured in gradians with 100 to a right angle or primary compass point and 400 gradians to a complete circle. They then decided that a metre should be related to the circumference of the earth. 10000 metres made up the distance from pole to equator. Or if you prefer, 100km made up a gradian, or 1km a centigrade, or 1m a myriograd. But they couldn't measure the globe too accurately so it is slightly out.
But the rest of the world didn't like radians (probably because they were a French idea) and stuck with 360 degrees so a degree of longitude is 400/360 x 100 km making it 111km to the nearest km.
I didn't really cheat - I worked it out from Donkey~'s numbers then checked I'd remembered it right.
While looking it up, I also found out that a nautical mile is 1 minute of latitude, making a degree is 60 nautical miles .
a degree latitude is 60 nautical miles, but a degree of longitude depends on where you are ;)Quote:
Originally Posted by D-Type
I agree, 111km like you and Donkey have claimed should be the correct answer for longitudes that are 1 degree apart.Quote:
Originally Posted by D-Type
That is what is says here as well.
Yes well done, all. 111km is the distance given to the nearest KM.
Next Question please D-Type
Here's an easy one.
I walk 10 miles north
I then walk 10 miles east
I then walk 10 miles south
I end up back where I started.
What animal could I definitely not have seen on my little journey?