0
How is the length of the shadow of a pole useful for determining the latitude of a place?
I believe it is credited to Eristothenes a greek scholar. ANyways it is not so simple but involves algebra and triginometry etc.
ANyways I have to refresh my memory but I believe he had come across some papers from another scholar who was located somewhere very south of his location and that this person wrote that at noon on the longest day of the year a stick in the ground casts no shadow. THus knowing where the sun was exactly over head (WEll roughly actualy) he could compute the relation of that location to his by placing a stick in the ground at a time of day that the sun is at its highest point and measure the shadow. Then the math.
Oh and using this knowledge Eristothenes gave use the longitudes and latitudes as well as the proof of a round earth (if I remember right)
Anyways the math is like this set a stick straight up and down and at the time of day where the sun is at its highest point you measure the shadow. This measurement and the hight of the stick are plugged into this equation
S_=_H_tan(_L-((tilt)_*_sin(360degrees_d_/365)_)">S= H tan( L-((tilt) * sin(360degrees d /365) )S is length of shadow, H is pole height, tilt is the relationship of earths axis related to its orbit around the sun which is 23.5 degrees, and d is amount of days from the vernal equinox and L is the latitude we are looking for.
As you can see its better to just look on a map because thats alot of work when your trying to find your location. Thank god for Google maps.
Actually it is pretty neat being able to do this. You can throw your measurements into a computer program to do the math and then try and see how close you get to the actual location.
He was able to determine the circumfrence of the earth to within 1 percent of what we know it to be today.
What else can I help you with?
Why are lines of latitude and longitude useful to a geographer?
Lines of latitude and longitude allow a specific point to be located any where on the world.
What fossils are useful in determining the relative age of rocks?
Index fossils
What degree are you on the latitude?
The latitude of the chair in my office where I am sitting right now and not getting any useful work done is 42.036026 degrees North.
How can electron dot diagrams can be useful?
They could be useful while determining the valency of atoms and the structures of chemical bonding in plausible ways.
How is the axis of the earth useful in locating places on the globe?
The axis of the earth is useful in locating places on the globe because people use the axis as a starting point. The axis is the starting point to go north or south, any direction on the globe and be able to use coordinates to pinpoint an exact concise location.
What Tools would be most useful in determining the length and width of a school cafeteria?
meater stick
How does measuring shadows help us determine what time of day it is?
Measuring shadows is useful for determining time of day because the length and direction of a shadow change based on the position of the sun in the sky. By measuring the length and direction of a shadow cast by an object, we can estimate the angle of the sun and roughly determine the time of day. This method is commonly used with tools like sundials.
What properties of similar triangles are useful for estimating distances and heights?
The base length of both triangles. The base using the shadow method would be the shadow. The base using the mirror method would be from the object to the center of the mirror.
How do you determine the useful life of a building?
formula for determining the useful life of a building?
In the northern hemisphere the altitude of the north star is always roughly equal to the?
In the northern hemisphere, the altitude of the North Star, or Polaris, is approximately equal to the observer's latitude. This means that if you are at a latitude of 40 degrees north, Polaris will be about 40 degrees above the northern horizon. This relationship makes Polaris a useful navigational tool for determining one's latitude.
What is altitude of polaris?
The altitude of Polaris, also known as the North Star, is approximately equal to the observer's latitude in the Northern Hemisphere. For example, if you are at a latitude of 40 degrees north, Polaris will be about 40 degrees above the northern horizon. This relationship makes Polaris a useful navigational reference for determining one's latitude. In the Southern Hemisphere, Polaris is not visible.
What can be learned studying the length and direction of a shadows?
Studying the length and direction of shadows can provide insights into the position of the sun in the sky, which varies throughout the day and across seasons. This information can help determine the time of day and the geographic latitude of a location. Additionally, understanding shadows can be useful in various fields such as architecture, agriculture, and navigation, as it influences light exposure and temperature. Overall, shadow analysis enhances our understanding of solar angles and their practical implications.
What is the most useful bone for determining ethnicity?
the skull
What is most useful in determining the position of stars?
parallax
Where can one find reliable and useful information about storm shadow online?
You can find reliable and useful information about Storm Shadow at the official G.I. Joe Wiki page. You can also read about Storm Shadow on his Comic Vine webpage.
How is latitude and longitude useful?
to locate place and for time calculation
How latitude and longitude are useful to us?
to locate and find the place
