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What is the formula for figuring curvature of the earth in any given direction?
The curvature of the Earth in any direction can be calculated using the formula for the Earth's radius of curvature (R), which is given by R = a / √(1 - e^2sin²φ) where a is the equatorial radius of the Earth and e is the eccentricity of the Earth. By determining the radius of curvature at a specific latitude (φ), you can find the curvature in that direction.
What is curvature of earth?
The curvature of the Earth refers to the gradual slope or curve of the Earth's surface away from a straight horizontal line. This curvature is what causes the horizon to appear as it does, and it is also a key factor in determining how far one can see to the horizon. The Earth's curvature is most prominent over long distances or when viewing large bodies of water.
How does the curvature of spacetime, as described by general relativity, influence the trajectory of Earth's orbit around the Sun?
The curvature of spacetime, as described by general relativity, influences the trajectory of Earth's orbit around the Sun by causing the path of the Earth to follow a curved trajectory around the Sun. This curvature is due to the mass of the Sun bending the fabric of spacetime, which in turn affects the motion of objects like the Earth that are moving through this curved spacetime.
What is super refraction?
Super refraction is an atmospheric bending of radio waves that causes them to follow the curvature of the Earth more closely than normal, resulting in an increase in signal strength at a receiver beyond the normal line of sight range. This phenomenon can occur due to temperature inversions in the atmosphere.
How fast must a projectile moving horizontally travel so that the curve it follows matches the curve of the Earth?
To match the curve of the Earth, the projectile must travel at an initial velocity of about 7.9 km/s horizontally. This velocity is equivalent to the orbital velocity necessary for the projectile to continuously fall along the Earth's curvature. Accounting for air resistance and other factors may require adjustments to this initial velocity.
What is the phenomenon where microwave signal follows earth curvature?
Microwave EM radiation travels only in a straight line - line-of-sight/point to point. Bouncing waves off of the ionosphere would accomplish this.
What is the difference between radio horizon and optical horizon?
radio signal bents around the curvature of earth and hence travel longer distance than the line of sight signal. At ultra high frequencies signal follows the line of sight path and hence maximum communication distance is limited due to curvature of earth for given height of transmitting and receiving antenna
When a pilot flies a long distance flight - does the pilot have to descend the plane mid-flight to match the curvature of the Earth?
No. Level flight for an aircraft is not flight in a straight line (vertically) but one that follows the curvature of the earth. It is an arc that maintains the same altitude.
Can you see the curvature of the earth from space?
Yes, astronauts can see the curvature of the Earth from space.
What is the formula for figuring curvature of the earth in any given direction?
The curvature of the Earth in any direction can be calculated using the formula for the Earth's radius of curvature (R), which is given by R = a / √(1 - e^2sin²φ) where a is the equatorial radius of the Earth and e is the eccentricity of the Earth. By determining the radius of curvature at a specific latitude (φ), you can find the curvature in that direction.
At what altitude can you observe the curvature of the Earth?
The curvature of the Earth can be observed at an altitude of around 35,000 feet or higher, such as when flying in a commercial airplane.
At what height can you observe the curvature of the Earth?
The curvature of the Earth can be observed at a height of approximately 35,000 feet, which is the cruising altitude of commercial airplanes.
What are the use of microwave signals?
Microwave frequencies are generally considered to be in the region above 1000 Megahertz, (About 30 cm wavelength.) and as the gain of an antenna depends on it's size in wavelengths, it is possible to make very tightly focused beams at these wavelengths. This then allows low power transmitters to communicate over long distances by aiming a beam of energy at a receiving antenna. The disadvantage is that it is strictly line of sight, so mountains or earth's curvature will block the signal, hence microwave systems are often mounted on towers or tall buildings.
What is a satellite signal?
It's the same information-carrying signal that you'd receive from any microwave station on a tower in a network carrying telephone, television, voice, data, navigation etc. from place to place, except that this microwave repeater happens to be in an artificial satellite that's orbiting the earth.
How long does it take for a microwave radar signal to travel from Earth to the Moon and back?
Approximately 2.5 secs. A 'microwave' is an electro-magnetic radiation, in the same manner as light, and uv. radiation. Being an electro-magnetic radiation it will travel at the speed of light, which is 'c' = 3.8 x 10^8 m/s
Can you see the curvature of the Earth from a plane?
Yes, you can see the curvature of the Earth from a plane when flying at a high altitude, typically above 35,000 feet.
How high above the earth do you have to go to see the curvature of the earth?
To see the curvature of the Earth, you would typically need to be at an altitude of around 35,000 feet, which is roughly the cruising altitude of commercial airplanes. At this height, the curvature of the Earth becomes noticeable due to the increased field of vision.
