A sphere (from Ancient Greek σφαῖρα (sphaîra) 'globe, ball') is a geometrical object that is a three-dimensional analogue to a two-dimensional circle. A sphere is the set of points that are all at the same distance r from a given point in three-dimensional space. That given point is the centre of the sphere, and r is the … Zobraziť viac As mentioned earlier r is the sphere's radius; any line from the center to a point on the sphere is also called a radius. If a radius is extended through the center to the opposite side of the sphere, it creates a Zobraziť viac Spherical geometry The basic elements of Euclidean plane geometry are points and lines. On the sphere, points are defined in the usual sense. The analogue of the "line" is the geodesic, which is a great circle; the defining … Zobraziť viac Ellipsoids An ellipsoid is a sphere that has been stretched or compressed in one or more directions. More exactly, it is the image of a sphere under an affine transformation. An ellipsoid bears the same relationship to the sphere that an Zobraziť viac In analytic geometry, a sphere with center (x0, y0, z0) and radius r is the locus of all points (x, y, z) such that Zobraziť viac Enclosed volume In three dimensions, the volume inside a sphere (that is, the volume of a ball, but classically … Zobraziť viac Circles Circles on the sphere are, like circles in the plane, made up of all points a certain distance from a … Zobraziť viac The geometry of the sphere was studied by the Greeks. Euclid's Elements defines the sphere in book XI, discusses various properties of the … Zobraziť viac
Exploring the Earth
Web4. apr 2024 · The Four Spheres Of The Earth Atmosphere. The atmosphere of Earth, which we casually refer to as simply ‘air’, is actually made up of a mixture of... Hydrosphere. … Web1. jan 2024 · The spheres improved survival by four times—115 days versus 28 days—and the rate of toxic side effects was much lower. Spherical nucleic acids, or SNAs, avoid … fyzical longs pond
Science On a Sphere
WebThe Hydrosphere- contains all the water of the planet, which exists in solid, liquid, and gas forms. Water flows as precipitation from the atmosphere down to Earth's surface, as rivers and streams along Earth's surface, and as groundwater beneath Earth's surface. Most of Earth's freshwater, however, is frozen. The Biosphere Webthe place or environment within which a person or thing exists; a field of activity or operation: to be out of one's professional sphere. verb (used with object), sphered, spher·ing. to … Web13. apr 2024 · A sphere is a perfectly round geometrical 3-dimensional object. It can be characterized as the set of all points located distance r r (radius) away from a given point … fyzical north parker