The number of meters in a nautical mile. Using this information we can calculate the circumference of the Earth as C = π x 12,742km = 40,030km Earth's circumference is the distance around the Earth; around the poles it measures almost exactly 40,000 kilometres or 21,600 nautical miles due to the circumference being used to define those units of measurement. To calculate Circumference of Circle, you need Radius (r). He was informed in his approach by Eratosthenes, who a century earlier used the elevation of the Sun at different latitudes. • The circumference of Earth (distance around Earthat the equator) is approximately 40,000 kilometers (25,000 miles). • The distance to the moon is 10 times the circumference of Earth, or approximately 400,000 kilometers (250,000 miles). By wrapping a string around the basketball ten times (or wrapping it around the ball once and using that Using this information we can calculate the circumference of the Earth as C = π x 12,742km = 40,030km Earth's circumference is the distance around the Earth; around the poles it measures almost exactly 40,000 kilometres or 21,600 nautical miles due to the circumference being used to define those units of measurement. This is because one degree of latitude is approximately 69 statute miles in length. A nautical mile is used for navigation at sea. input convert. At the equator, Earth has a circumference of 24.901.461 mi / 40.075.017 km. Length Conversion. Statute mile: See the Difference ... 1 nautical mile C. 60 statute mile D. 60 nautical mile The volume af any solid revolution is equal to the generating are times the circumference of the circle described by the centroid of the area. Nautical miles are most commonly used in navigating and charting, especially over water. Metric: Imperial: Equatorial Radius: 6,378,206 metres: 3,963 statute miles: Polar Semi-axis: 6,356,583 metres: 3,949 statute miles: Radius of sphere of equal area Circumference of the Earth in meters: 40,075,000 meters Circumference of the Earth in centimeters: 4,007,500,000 centimeters Circumference of … To travel around the Earth at the equator, you would have to travel (360 * 60) 21,600 nautical miles, 24,857 miles or 40,003 kilometers. Earth’s polar circumference is very near to 21,600 nautical miles because the nautical mile was intended to express one minute of latitude (see meridian arc), which is 21,600 partitions of the polar circumference (that is 60 minutes × … With our tool, you need to enter the respective value for Radius and hit the calculate button. As such, it is easy to convert latitude into miles. Let D be the nautical distance traveled by a ship S, sailing away from the LH, and alpha radian = the angle subtended by the arc of … You then divide that circle into 360 degrees, and a degree into 60 minutes. A nautical mile is 1,852 meters or 1.852 kilometers. In the English measurement system, a nautical mile is 1.1508 miles, or 6,076 feet. The difference is caused by the flattening of the poles, such that the Earth has an oblate spheroidal shape. The unit is named after the leng..more definition+ In relation to the base unit of [length] => (meters), 1 Nautical Miles (NM) is equal to 1852 meters, while 1 Cable Length Us (cbl[US]) = 219.456 meters. You can use this tool to find the radius around a point on the map. What is the proper name of the shape of the earth? The meridional circumference that is from pole to pole is 40,008 km. It is slightly more than a statute (land measured) mile (1 nautical mile = 1.1508 statute miles ). A nautical mile is slightly longer than a mile on land, equaling 1.1508 land-measured (or statute) miles. Why Nautical Mile is Longer than Mile. A nautical mile (nmi, naut mi or NM) is absolutely not an Imperial measurement, although many think it is. He measured the Earth's circumference by reference to the position of the star Canopus. A nautical mile is not a statute mile (a mile measured over land.) A nautical mile is defined as the length of an arc on the circumference of the earth, with a central angle of one minute or 1/16 of a degree. In modern times, Earth's circumference has been used to define fundamental units of measurement of length: the nautical mile in the seventeenth century and the metre in the eighteenth. There are 158 earth's circumference-related words in total, with the top 5 most semantically related being sphere, flattening, degree, stadion and alexandria.You can get the definition(s) of a word in the list below by tapping the question-mark icon next to it. Measured around the Equator, it is 40,075.017 km (24,901.461 mi). Eratosthenes of Cyrene (c. 276 BCE–192 or 194 BCE) was an ancient Greek mathematician, poet, and astronomer who is known as the father of geography.Eratosthenes was the first person to use the word "geography" and other geographical terms that are still in use today, and his efforts to calculate the circumference of the Earth and the distance from the … First type in the radius required in kilometers or miles and then click on the map at the center of where you wish the circle to appear. However, from pole to pole — the meridional circumference — Earth is only 24,860 miles (40,008 km) around. When it comes to measurements from pole-to-pole, or along the meridian line, the Earth has a circumference of 24.859.73 mi / 40.007.86 km. The number of nautical miles you would travel to go around the Earth at the Equator. A minute of arc on planet Earth is 1 nautical mile. … It is slightly more than a statute (land measured) mile (1 nautical mile = 1.1508 statute miles). A nautical mile measures distance and a knot measures speed. Doubling that figure for the diameter we get a figure of 25,000 miles. The meridional circumference that is from pole to pole is 40,008 km. How does it relate to a standard mile and a kilometer? The circumference of the Earth is the perimeter of the earth, i.e. By default, the rad2nm function assumes your input is a measurement of the Earth, which is represented as a sphere with a radius of 3440.065 nautical miles. Let's use nautical miles, as they are actual terrestrial measurements based upon degrees, minutes, and seconds. Knowing that c=2πr we can solve for the radius and get 6,366,707.0 meters. So here is the earth's circumference. 60 minutes equals 1 nautical mile, 360 X 60 equals 21600 nautical miles. Hi there! However, the Earth is not quite a perfect circle, and if you measure through the poles, the circumference is a bit shorter—24,859.82 miles. A nautical mile measures distance and a knot measures speed. A nautical mile is a non-SI unit of length or distance. It is approximately one minute of arc measured along any meridian. The nautical mile was based on the circumference of the earth at the equator. At an altitude of 322 km (200 miles), an orbiter covers approximately 41,300 km (26,000 miles) in one orbit. nautical miles, offload, and fly to a second base 500 nautical miles away from the original destination, all without aerial ... Circumference of the earth = 24,901 miles = ~25,000 miles . Divide students into teams of four or five students (depending on the size of the class). 1852. This is originally how the distance for nautical miles was defined. Nautical miles are based on the circumference of the earth. 1 Knot = 1 Nautical Mile per hour 1 Nautical mile = 6076.12 ft. = 1852 m 1 Statute mile = 1760 yards = 5280 feet. 1° of latitude = 60 nautical miles. Question 1159660: The distance between two points A and B on Earth is measured along a circle having center C at the center of Earth and radius equal to the distance from C to the surface (see the figure). B. STATUTE AND NAUTICAL MILES nm = sm x 1.15 Find the distance in nautical miles given the distance 2,163 statute miles, the distance of the first transcontinental flight across the United States by Lt. Jimmy Doolittle in 1922. With a circumference of 40,075 km, Earth is the fifth largest of the planets in the Solar System. The circumference of the Earth north to south A nautical mile, used for marine measurements and air travel, is equal to one minute (1/60) of the 180 degrees of latitude, i.e. That is the approximate distance between each degree of latitude. (7,927 miles) times the cosine of the latitude. Answer (1 of 10): The word circumference is usually reserved for the distance around a closed curve, most usually a circle. This results in about 69.2 miles. Each degree of lattitude is 60 minutes. 6080 ft in a NM 5280ft in a statute mile. - Don't miss any posted from Carefree Boat Club Danvers. Nautical miles are based on the circumference of the earth. Divide the amount of miles by the degrees in a circle. Earth’s Measurements . In modern times, Earth's circumference has been used to define fundamental units of measurement of length: the nautical mile in the seventeenth century and the metre in the eighteenth. The nautical mile was officially standardized against the meter in 1929 by the International Hydrographic Organization. nm = rad2nm (2*pi) nm = 2.1615e+04. Nautical Mile A Nautical mile is based on the circumference of the earth, and is equal to one minute of latitude (1/60th of a degree). 1.852. Earth's circumference is the distance around Earth. Earth’s circumference is the distance around Earth. 1 nautical mile is defined as 1 minute of arc (of the circumference of Earth). One of these minutes (or minutes of arc as they are called in navigation) along a great circle on Earth represents one nautical mile. In terms of statute or land miles, a nautical mile represents 1.15 miles. This is because one degree of latitude is approximately 69 statute miles in length. 1/60th of that measure would be 1.15 statute miles. 1 Knot = 1 Nautical Mile per hour 1 Nautical mile = 6076.12 ft. = 1852 m 1 Statute mile = 1760 yards = 5280 feet. A nautical mile is based on the circumference of the Earth and is used by sea and air navigators. Copy Code. Examples what is the volume of a cylinder with radius 4cm and height 8cm The circumference of the Earth is the perimeter of the earth, i.e. What is the circumference of the earth at the poles? With a circumference of 40,075 km, Earth is the fifth largest of the planets in the Solar System. nautical-miles to earth-circumference 1 Nautical Miles = 4.63E-5 Earth Circumference Nautical miles are used for charting and navigating. (1.15 statute miles per nautical mile)(21600 nautical miles) = approx 25000, the Earth's circumference in statute miles Click to expand... You must log in or register to reply here. A knot is equal to 1 nautical mile per hour. Using this knowledge we get 21,600 nautical miles for the polar circumference or 40,003,200 meters. Measured at the equator, the Earth has a circumference of 40,075.017 km or 24,901.461 miles. How big is the circumference of the Earth at the equator? It is slightly more than a statute (land measured) mile (1 nautical mile = 1.1508 statute miles). It is a unit of measurement that is based on the circumference of the Earth. = circumf. 1/60th of that measure would be 1.15 statute miles. It is also interesting that "our" math conventions use 21600 arc-minutes as the circumference of 'any' circle or sphere. 60 x 180 in total one pole to the other. Since the earth is 360 degrees of longitude around, and degrees are broken into 60 so-called "minutes", that means there are 360 * 60 = 21,600 "minutes" of longitude around the earth. Notice the difference between miles and nautical miles. However, from pole to pole — the … A nautical mile is based on the circumference of the earth, and is equal to one minute of latitude. 40075.017 km; 24901.461 miles; 21638.778 nautical miles; The circumference of the Earth depends on the great circle that is measured. The circumference of the earth at the equator is 360 degrees. A nautical mile is a unit of length used in air, marine, and space navigation, and for the definition of territorial waters. Below is a massive list of earth's circumference words - that is, words related to earth's circumference. Imagine cutting the Earth in half and looking at the circle formed by the equator. 24,857. The nautical mile is based on the circumference of the Earth. If you cut the Earth in half at the equator, pick up one of the halves and look at the equator as a circle. A nautical mile is based on the circumference of the earth, and is equal to one minute of LATITUDE. Each degree is divided into 60 smaller parts, called minutes. Admit central English 360 degrees. the linear distance around the earth. The nautical mile is represented as 1852 meters or about 1.15 miles. In this convention, the nautical mile was originally defined as the distance one travels when sailing along a straight path through an angle of one minute of arc. Using the circumference we find that 1 kilometer has the angle 360° / 40 030 km = 0.009°. When it comes to measurements from pole-to-pole, or along the meridian line, the Earth has a circumference of 24.859.73 mi / 40.007.86 km. The polar circumference equals C p =4m p, four times the quarter meridian m p =aE(e), where the polar radius b enters via the eccentricity, e=(1−b 2 /a 2) 0.5; see Ellipse#Circumference for details. Therefore we can take the distance of 500 nautical miles, multiply by 25, and find that the radius of the Flat Earth is about 12,250 nautical miles. This circular line is divided into 360 equal parts called degrees. One minute of latitude is equal to how many nautical miles? The Earth is a bit wider than it is tall, giving it a slight bulge at the equator; this shape is known as an ellipsoid, or, more properly, a geoid. A nautical mile is precise measurement based on the circumference of the earth. A nautical mile is based on the circumference of the Earth and is used by sea and air navigators. Nautical miles are used for charting and navigating. The number of miles in a nautical mile. 21,600 nautical miles = 24,872.7272...statute miles = 40,028.7 kilometres. A nautical mile is based on the circumference of the Earth. T he circumference of the parallel at latitude 53°23´ N = 2 r, where r = R cos AOC, AOC = 53°23´ = 53.3833° and R = radius of the Earth = 3443 nautical miles. this question asks us to find the distance of a nautical mile. So the most natural interpretation of your answer is the circumference of the line of latitude at 45 degrees north. A nautical mile is based on the circumference of planet Earth. Nautical mile is measured based on the earth’s circumference and is equivalent to one minute of latitude. The distance from Alexandria to Syene is one such arc, a measurable and known fraction of earth's total circumference. Find out in this article. Corresponding Angles Eratosthenes knew that the distance from Alexandria to Syene on a spherical earth was an arc of the circumference, which means the two towns created a central angle at earth's center, which we will call : A nautical mile is defined as 1,852 meters or 1.852 kilometres. Various definitions exist. Once cut, the circle of the half can be divided into equal portions of 360°. The number of kilometers in a nautical mile. Using those measurements, the equatorial circumference of Earth is about 24,901 miles (40,075 km). As earth is not a perfect sphere, circumference measured around the poles is 39,940.653 Km, and circumference measured around the equator is 40,075.017 Km. To travel around the Earth at the equator, you would have to travel (360 * 60) 21,600 nautical miles, 24,857 miles or 40,003 kilometers. The circumference of any circle of latitude is the cosine of the latitude value times the equatorial circumference of the Earth. If you were to cut the Earth in half at the equator, you could pick up one of the halves and look at the equator as a circle. Distance from equator to pole = 90 X 60 = 5400 NM 360 degrees = 24 hours 15 degrees = 1 hour 1 degree = 4 minutes. His measure of 240,000 stadia translates to 24,000 miles (39,000 km), close to the actual circumference of 24,901 miles (40,074 km). Side note: Degrees of latitude are parallel so the distance between Each degree is equivalent to 60 minutes, and each minute of latitude is equal to 1 nautical mile, or one minute of Earth's arc. A minute of arc on the planet Earth is … 1' of latitude = 1 nautical mile. It is 1852m, or 1 minute of the distance along the Earth’s equator. Since cos(60) is 0.5, the diameter of the small circle would be 3963.5 miles, so the circumference would be pi*3963.5 = 12451 miles.-- John the Wysard JVinson *at* Wysard Of Info *dot* com Supported formulas and equations: Area, circumference, law of sines and cosines, hypotenuse, perimeter, Pythagorean theorem, surface area, and volume. Nautical Miles and Knots. Find the circumference of the Earth in nautical miles. Assume a cut on the Earth in half at the equator, and if one part is picked then consider the equator as a circle. The flattened spherical nature of Earth is reflected in terms of its equatorial and meridional circumference. In 200 BCE, after all, Eratosthenes calculated the circumference of the earth to within one percent of its actual girth. The circumference of the Earth is 21,639.25 nautical miles and the base of the Great Pyramid when it had its casing stones was about 3031.496 ft in circumference. The equatorial circumference is simply the circle perimeter: C e =2πa, in terms of the equatorial radius, a. We wish to find the height (h) which is the drop in curvature over the distance (d). A nm is defined as 1/60 of a degree of the Earth’s circumference, where the circumference is 360 degrees of a spherical Earth of radius, approximately, 3963 miles, or 3441.55 nm. A nautical mile is based on the circumference of the earth, and is equal to one minute of latitude. A nautical mile is based on the circumference of planet Earth. It was set as one nautical mile being equal to 1,852 meters. Drop in curvature over the past 35 years //www.space.com/17638-how-big-is-earth.html '' > How do I calculate the of!: //www.universetoday.com/66515/how-many-miles-around-the-earth/ '' circumference of earth in nautical miles Earth 's circumference used in navigating and charting, especially over water there! One nautical mile = 1.1508 statute miles. the class ). 2. 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