write in bride about the shape of the earth.
Answers
Answer:
For this answer, first of all, we should know about two things that are mass and gravity. In the universe, every single thing has mass. If something is more big and dense, then more mass it has. Then another interesting thing which we are not able to see is that all the objects with mass are being pulled towards each other because of a force called gravity. So for this, if we drop something then it falls towards the Earth not up into the sky.
Do the People in Argentina Stand Upside Down, If the Earth is Round?
No! There is nothing like that! They are also standing upright. No “up” and “down” is there on the earth. It is relative. Let us take an example to understand. Take a 5rs coin and a small piece of paper. Fold the paper to one-fifth the size of the coin. Then, hold the coin in one hand and paper in another hand. At the same time drop them. What happens? Both of them fall down, but the coin falls more quickly! This all happens because of the gravitational force.
Explanation:
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Answer:
The Earth is an irregularly shaped ellipsoid.
Explanation:
Long ago, people thought that it was flat like a coin. But later on, when pictures were taken from space then we got to know that the earth is actually not perfectly spherical but it is very close to that of the shape of a sphere.
Figure of the Earth is a term of art in geodesy that refers to the size and shape used to model Earth. The size and shape it refers to depend on context, including the precision needed for the model. The sphere is an approximation of the figure of the Earth that is satisfactory for many purposes. Several models with greater accuracy have been developed so that coordinate systems can serve the precise needs of navigation, surveying, cadastre, land use, and various other concerns.
This NASA image shows Earth from space. The image is a combination of data from two satellites. The Moderate Resolution Imaging Spectroradiometer (MODIS) instrument aboard NASA’s Terra satellite collected the land surface data over 16 days, while NOAA’s Geostationary Operational Environmental Satellite (GOES) produced a snapshot of the Earth’s clouds.
While the Earth appears to be round when viewed from the vantage point of space, it is actually closer to an ellipsoid. However, even an ellipsoid does not adequately describe the Earth’s unique and ever-changing shape.
Our planet is pudgier at the equator than at the poles by about 70,000 feet. This is due to the centrifugal force created by the earth’s constant rotation. Mountains rising almost 30,000 feet and ocean trenches diving over 36,000 feet (compared to sea level) further distort the shape of the Earth. Sea level itself is even irregularly shaped. Slight variations in Earth’s gravity field cause permanent hills and valleys in the ocean’s surface of over 300 feet relative to an ellipsoid.
Additionally, the shape of the Earth is always changing. Sometimes this change is periodic, as is the case with daily tides that affect both the ocean and the crust; sometimes the change is slow and steady, as with the drift of tectonic plates or the rebound of the crust after a heavy sheet of ice has melted; and sometimes the shape of the planet changes in violent, episodic ways during events such as earthquakes, volcanic eruptions, or meteor strikes.
The National Geodetic Survey measures and monitors our ever-changing planet. Geodesy is the science of measuring and monitoring the size and shape of the Earth, including its gravity field, and determining the location of points on the Earth’s surface.
three proof to show that the earth is round:
1. The man who sailed round the world , to pove that the earth is round named Ferdinand
2. Shape of the Heavenly Bodies e.g Moon , Sun etc
3. Bedford Level experiment : A rod of equal length was drilled to the ground , and later discovered one has a higher length than the other due to the shape of the earth
4. Day and Night
