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A planet's orbit could be a perfect circle in theory because a circle is a special case of an ellipse with an eccentricity of zero. However it is very rare and the planets all have a significant amount of eccentricity in their orbits, even though the amount of 'squashing' of the ellipse's shape is extremely small for most planets.
Isaac newton proposed an inverse-square law for the Sun's gravitational force (in other words, at double the distance the force is one quarter as much). He was able to show by theory alone that if the gravity is indeed inverse-square, then the planets' orbits must be elliptical and must follow Kepler's three laws of planetary motion.
This convinced Newton that gravity must be inverse-square and the laws of motion must be right and Kepler's theory must also be right. These discoveries, which required the development of a new mathematical technique now called differential calculus, are recognised as so monumental as to put Newton at the top of the tree of distinguished physicists of the last 300 years, and they marked the beginnings of the new science of theoretical physics.
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Why planets' orbits are elliptical and not circular?
The solar system condensed out of an interstellar dust cloud; the original cloud was not a perfectly symmetrical object, either in shape or in composition, and as it condensed, the result was not neat or orderly; there were lots of collisions as well as near misses that altered planetary orbits.
Are comets in circular or elliptical orbits?
Comets typically have elliptical orbits, which means their paths around the Sun are elongated and not perfectly circular. This is due to the gravitational influence of other celestial bodies, causing their orbits to be more elongated.
What most have slightly elliptical orbits?
Most planets in our solar system have slightly elliptical orbits, meaning their paths around the Sun are not perfectly circular. This results in them being closer to the Sun at some points during their orbit and farther away at other points. The degree of ellipticity varies for each planet.
What object or image best illustrates radial symmetry?
A sunflower is a good example of an object that illustrates radial symmetry. The seeds of the sunflower radiate outwards from the center, creating a symmetrical pattern that is repeated throughout the entire flower.
What causes the poles to be slightly off the true North and South poles?
The Earth's magnetic poles do not align perfectly with the geographic North and South poles due to the planet's molten iron core generating a magnetic field that is not perfectly symmetrical. This causes the magnetic poles to shift and be slightly off from the true geographic poles.
Is the brain symmetrical?
No. There is very little, if any, symmetry in the human body. For example, even your eyes are not perfectly symmetrical.
Are our faces symmetrical?
Yes, most people have faces that are not perfectly symmetrical, as slight differences in features and proportions are common.
Can you have sentence using the word symmetrical?
Unlike humans starfish has different symmetrical shape. It is just like a star.
In a perfectly symmetrical bell-shaped normal distribution?
Normal distribution is a perfectly symmetrical bell-shaped normal distribution. The bell curve is used to find the median, mean and mode of a function.
How symmetrical is my face compared to the ideal standard of facial symmetry?
Facial symmetry is a key factor in attractiveness, with the ideal being perfect symmetry. However, it is rare for faces to be perfectly symmetrical. Your face may not be perfectly symmetrical, but small differences are normal and do not necessarily affect overall attractiveness.
Are naturally occurring objects seldom perfectly symmetrical?
yes they mother freaker are
Are all faces symmertical?
For the most part faces are symmetrical, but not perfectly. In fact, research shows that the more symmetrical a persons face is, the more attractive they are.
Are naturally occurring objects seldom perfectly symmetrical - true or false?
True
What if one tonsil is bigger?
Doesnt have to mean a thing. Bodies are rarely perfectly symmetrical.
Why is the Villa La Rotunda considered by many to be Andrea Palladio's masterpiece?
Its design is perfectly symmetrical
Why do you have more hair on the right side of your chest?
Bodies aren't perfectly symmetrical, don't worry about it.
What is a perfectly symmetrical that has no edges or vertices and not a polyherdron all points on the surface are equal surface from the center?
Sphere
