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23 de abr. de 2024 · Learn about the definition, properties, and formulas of a sphere, the set of all points in three-dimensional space lying the same distance from a given point. Explore the applications of spheres in geometry, geography, and elliptic geometry.
- Ewald’s Sphere
Other articles where Ewald’s sphere is discussed: Paul Peter...
- Pseudosphere
Other articles where pseudosphere is discussed:...
- Poincaré Conjecture
Poincaré conjecture, in topology, conjecture—now proven to...
- Ewald’s Sphere
15 de may. de 2024 · Dyson spheres are vast structures that could be used by aliens to capture the energy of a star – and astronomers have found signals from 60 stars in the Milky Way consistent with such devices.
Hace 5 días · Archimedes, the most famous mathematician and inventor in ancient Greece. He discovered the relation between the surface and volume of a sphere and its circumscribing cylinder. He is known for his principle of hydrostatics (called Archimedes’ principle) and a device for raising water known as the Archimedes screw.
Hace 5 días · In the mathematical field of algebraic topology, the homotopy groups of spheres describe how spheres of various dimensions can wrap around each other. They are examples of topological invariants, which reflect, in algebraic terms, the structure of spheres viewed as topological spaces, forgetting about their precise geometry.
Hace 1 hora · Dyson spheres were first proposed by the physicist Freeman Dyson in 1960 as a way for an advanced civilisation to harness a star’s power. Consisting of floating power collectors, ...
10 de may. de 2024 · One group of scientists thinks that we may already have detected technosignatures from a technological civilization's Dyson spheres, but the detection is hidden in our vast troves of astronomical...
Hace 2 días · Two new scientific studies identify quite a few stars generating excess radiation that could, maybe, possibly, potentially be the result of ET's Dyson Spheres.
