Beefy Boxes and Bandwidth Generously Provided by pair Networks
Syntactic Confectionery Delight
 
PerlMonks  

Re: Constants you cannot help but remember

by davido (Archbishop)
on Jun 08, 2004 at 15:54 UTC ( #362405=note: print w/ replies, xml ) Need Help??


in reply to Constants you cannot help but remember

If you have a little explorer/navigator in your blood:

One minute of latitudinal arc = one nautical mile. 1 degree = 60 minutes. 360 degrees * 60 minutes = 21600nm; the approximate circumference of the Earth, in nautical miles. Since there are 6076 feet in a nautical mile, and 60 seconds in a minute, there are approximately 100 feet (101.26 to be exact) per second of arc.

What doesn't make a lot of sense is why folks decided to use a different statute mile. ;) The nautical mile is so convenient.


Dave


Comment on Re: Constants you cannot help but remember
Re^2: Constants you cannot help but remember
by hawtin (Prior) on Jun 09, 2004 at 08:41 UTC

    In metric the size of the earth is easier since the French originally defined the metre to be 1/10000000th of the distance from the North Pole to the Equator through Paris. (the definition has changed but the value is still close enough)

    That's a really easy constant to remember. I have needed it often even if those living in the US would rather use feet (or Survey Feet, or Clarke's feet, or whatever) (for which I can always remember the conversion factor 0.3048 by the way)

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://362405]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others drinking their drinks and smoking their pipes about the Monastery: (19)
As of 2014-12-18 16:09 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    Is guessing a good strategy for surviving in the IT business?





    Results (58 votes), past polls