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-- Set the clock to the time at your home, and make a note of the longitude at your home.
-- Go somewhere and take the clock with you. The clock must keep accurate time.
-- Watch the sun. When the sun reaches its highest altitude above the horizon,
note the time indicated on the clock.
-- If the time on the clock is before noon, then you are east of your home.
If the time on the clock is after noon, then you are west of your home.
-- (15) times (the number of hours between noon and the time on the clock)
is equal to number of degrees of longitude between your present location and
your home.
The touchiest part of this whole operation is the accuracy of the portable clock.
If Leif Ericcson or Christopher Columbus had had anything as good as the cheap
digital wristwatch that I bought from a street vendor a few years ago for 75¢ ,
the history of the New World's discovery would have been completely different.
Wiki User
∙ 12y ago
Wiki User
∙ 15y agodifference between local time and GMT (Greenwich mean time) if local time is ahead of GMT it is east and if it is behind GMT it is east each hour = 15 degrees.
Wiki User
∙ 15y agohttp://ihateliz.com/?id=gi23xvfjmozn0l8up0un69q4s7urxu
Wiki User
∙ 10y agothe longitude, by observing the sun, the moon or the stars.
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How could longitude lines and latitude lines help if you were in sea?
If you used a sextant and a marine chronometer you could determine your position and plot this on a map using latitude and longitude. If you did this regularly you would be able to plot your course.
Which technological development made it possible for sailors to find their latitude and longitude for the first time?
For latitude the sextant, and later for longitude, the marine chronometer.
How do you use longitude and latitude to determine elevation?
There's no way to determine elevation from latitude and longitude alone.
How many states do not use any latitude or longitude lines to determine the border?
Every point on Earth has longitude and latitude.
What Imaginary lines that help us determine location?
equator , prime merdian
How do you determine longitude and latitude with a chronometer and backstaff?
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Which was more difficult to determine latitude or longitude?
Longitude because you needed a chronometer and it hadn't been invented yet.
How could longitude lines and latitude lines help if you were in sea?
If you used a sextant and a marine chronometer you could determine your position and plot this on a map using latitude and longitude. If you did this regularly you would be able to plot your course.
What does a chronometer have to do with a ship?
Long before GPS, an accurate chronometer was needed to help a ship determine Longitude.
Which technological development made it possible for sailors to find their latitude and longitude for the first time?
For latitude the sextant, and later for longitude, the marine chronometer.
How do you use longitude and latitude to determine elevation?
There's no way to determine elevation from latitude and longitude alone.
What is this improved the ability to determine latitude and longitude based on the altitude of stars?
what improved the ability to determine latitude and longitude based on the stars
What is more difficult to determine longitude or latitude?
longitude is easy latitude does not give a hint in the word
How are latitude and longitude used to determine a location?
latitude in Greek means "wide" while longitude means "long"
What do you use to determine the exact location on a map?
latitude longitude
What lines on maps are used to determine location?
Latitude and Longitude
What unit of measure is used to determine longitude or latitude?
Degrees.
