View Full Version : USGLO MONUMENTS AND OTHERS
Thought I would put in some of the New mexico Marks that I got this last weekend while we were out West.
I wish I had more time to get the real old ones that are still waiting.
Maybe next time.
NEAR CX1889 DEMING SOUTH BASE
08-11-2004, 10:24 PM
Geo those are awsome I hope to find some like that soon.
All we need to do is get together and take a little drive close to ya down there.
You gotta search for the BM's with the ? mark on them.
Got alot of pictures of many more but do not want to take up bandwidth too much.
GLOSSARY OF TERMS
Here is the glossary for the terms used.
ERROR,ACCURACY AND PRECISION
08-18-2004, 11:42 PM
GEO those are very interesting links. Its all greek to me. I geuss I'm just not that smart.hahahahahaha
Well at least you are smart enough to figure out where it all came from anyway....................The Greeks.
The Greek Alphabet contains 24 letters,and if placed in a circle it makes the Compass with the 15* angle between each.IE. 0*,15*,30*,45*60*75*,90*....to .....180*..... to 270*.....to 360* or 0*.
I could get deep fast now,but will try and keep it fairly simple.
ARISTOTLE, PLATO, SOCRATES,PTOLEMY,COPERNICUS,Were the great mathmaticians who came up with most of the formulae we still use today.
I have read all their works and have studied indept into math.
I hope this helps.
08-19-2004, 08:17 AM
A statement in your "ANGULAR MEASUREMENTS" link stated that the width of the thumb at arms length was approximately 2 degrees. I used that to check out a "rule of thumb" that I learned many years ago - that the sun will travel 4 fingers at arms length in 30 minutes. In other words, when the sun is 4 fingers at arms length above the horizon, it's time to bring in the mule. The sun will set in 30 minutes.
Well, it turned out to be a pretty good rule of thumb. There are 48 30-minute time periods in one 360 degree rotation of the sun (earth). That divides out to 7.5 degrees per 30 minutes. Four widths of the thumb would be 8 degrees, slightly more than four fingers since the thumb is slightly larger than the fingers.
Just thought you'd like to know.
08-19-2004, 10:48 AM
Wow thats too deep 4 me. I just look at my watch to tell me when to bring in themule. hahahaha wait I don't have a mule.
Geezer I guess that would be called the rule of THUMB :lol:
I forgot to add Sir Issac Newton.
What is that Old saying.......sometimes you can know too much.
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