These are organized by a classification scheme developed exclusively for Cosma. More…
gravity : (1) : the gravitational attraction of the mass of the earth, the moon, or a planet for bodies at or near its surface (2) : a fundamental physical force that is responsible for interactions which occur because of mass between particles, between aggregations of matter (such as stars and planets), and between particles (such as photons) and aggregations of matter, that is 10-39 times the strength of the strong force, and that extends over infinite distances but is dominant over macroscopic distances especially between aggregations of matter — called also gravitation, gravitational force — Webster
Gravity, or gravitation, is a natural phenomenon by which all things with mass or energy—including planets, stars, galaxies, and even light —are brought toward (or gravitate toward) one another. On Earth, gravity gives weight to physical objects, and the Moon’s gravity causes the ocean tides. The gravitational attraction of the original gaseous matter present in the Universe caused it to begin coalescing, forming stars – and for the stars to group together into galaxies – so gravity is responsible for many of the large scale structures in the Universe. Gravity has an infinite range, although its effects become increasingly weaker on farther objects. — Wikipedia
Cambridge Digital Library Starts Off by Posting Newton’s Papers (Jennifer Howard, Chronicle of Higher Education)
Papers of Sir Isaac Newton (Cambridge University Library)
The Newton Project:Newton’s Writings as He Wrote Them (The Newton Project)
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Phys.org - latest science and technology news stories Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine.
- NASA's asteroid hunter Lucy soars into sky with...on October 16, 2021 at 10:19 am
A NASA spacecraft named Lucy rocketed into the sky with diamonds Saturday morning on a 12-year quest to explore eight asteroids.
- Cooling radio waves to their quantum ground stateon October 15, 2021 at 6:00 pm
Researchers at Delft University of Technology have found a new way to cool radio waves all the way down to their quantum ground state. To do so, they used circuits that employ an analog of the so-called laser cooling technique that is frequently used to cool atomic samples. The device used a recently developed technique the researchers call photon pressure coupling, which is predicted to be of use in detecting ultra-weak magnetic resonance (MRI) signals or for quantum-sensing applications that […]
- Japanese billionaire gets ready for December...on October 15, 2021 at 1:59 pm
A forthcoming flight to space by a Japanese billionaire will allow the public to have a closer look at life on board the International Space Station, the president of Space Adventures, a company that organized the flight, said Friday.
- Imminent asteroid missions could reveal our...on October 15, 2021 at 1:55 pm
Asteroids are remnants of the early Solar System, with the potential to reveal secrets of our planet's origins. But they could also bring an end to life on Earth. Now two missions, Lucy and DART (Double Asteroid Redirection Test) will provide further insights into both of these features—with DART even attempting to redirect the orbit of a moon around an asteroid.
- Lucy in the sky: Spacecraft will visit record 8...on October 14, 2021 at 6:06 pm
Attention asteroid aficionados: NASA is set to launch a series of spacecraft to visit and even bash some of the solar system's most enticing space rocks.