Gravity

Cosma / Communication / Knowledge / Realm / Physical / Force / Gravity
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Introduction1

Minute Physics (Henry Reich, YouTube Channel)
Minute Physics (Henry Reich, Official Website)

Dictionary

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 — Merriam-Webster   See also OneLook

Thesaurus

Roget’s II (Thesaurus.com), Merriam-Webster Thesaurus, Visuwords

Encyclopedia

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

Gravity (Encyclopædia Britannica)

Search

Gravity (WolframAlpha)

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Adventures

Explore related posts on Cosma …

  • The Waves Won! - Gravitational waves that is! It has been announced that Rainer Weiss (MIT), Barry Barish (Caltech) and Kip Thorne (Caltech) have won the 2017 2017 Nobel Prize in Physics for their decisive contributions to the LIGO detector and the first observation of gravitational waves in 2015. Here are links to a one minute video from Newsy … Continue reading The Waves Won!

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Inspiration

Subatomic Stories (Fermilab, YouTube Playlist)
Fermilab (Official Website)

Subatomic Stories (Fermilab, YouTube Playlist)
Fermilab (Official Website)

The Power of Gravity (Wonders of Life w/ Prof Brian Cox, BBC Earth)

Talks about Gravity (TED: Ideas Worth Spreading)
Articles about Gravity (Big Think)

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Innovation

Science

Physics (Free Animated Education, YouTube Playlist)
Free Animated Education (Facebook)

Gravitation: The Four Fundamental Forces of Physics (SciShow)

Gravity (Eric Weisstein’s World of Physics, Wolfram Research)
Gravity (Astronomy Café)

Commerce

Entrepreneurship

Gravity Campaigns (Kickstarter)

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Preservation

History

Newton and Leibniz (Crash Course History of Science)

Isaac Newton on Objectivity (Objectivity, YouTube Playlist)

The Newton Project:Newton’s Writings as He Wrote Them (The Newton Project)

Library

DDC: 531.14 Gravitation (Library Thing)
Subject: Gravitation (Library Thing)

Subject: Gravitation (Open Library)

LCC: QC 178 Gravitation (UPenn Online Books)

LCC: QC 178 Gravitation (Library of Congress)
Subject: Gravitation (Library of Congress)

Subject: Gravitation (WorldCat)

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Participation

Education

Science Trek (YouTube Channel)
Science Trek (Official Website)

Gravity (Science Trek)

Physical Science: Introduction to Gravity (Crash Course Kids, YouTube Playlist)

What is Gravity? (Space Place, NASA)
Gravity (Physics4Kids)

Gravitation: From Newton to Einstein (Contemporary Physics Project)

Course

Newtonian Gravity (Crash Course Physics)

MERLOT: Multimedia Educational Resource for Learning and Online Teaching
OER Commons: Open Educational Resources

Community

News

Gravitation (JSTOR)
Gravitation (EurekaAlert, AAAAS)
Gravitation (NPR Archives)

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Expression

Fun

Arpan Jolly (YouTube Channel)
Arpan Jolly (Instagram)

Humor

Gravity (Tim Hunkin, The Rudiments of Wisdom Encyclopedia)

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Recent News from Phys.org …

  • How did Mars get its moons? Japan's MMX space...
    on October 15, 2026 at 7:40 pm

    The Earth got its moon when a small planet collided with our planet more than 4 billion years ago. This impact hurled molten rock into space, which eventually coalesced to form the satellite we can see every night from across our planet.

  • Quantum sensor could measure how Earth drags...
    on October 15, 2026 at 10:40 am

    Einstein's theory of general relativity describes gravity as the bending of spacetime, a mathematical model that combines three-dimensional space and time into a single, four-dimensional continuum. The theory also predicts that a rotating object, such as Earth, slightly drags the surrounding spacetime as it rotates, a phenomenon known as frame-dragging.

  • The stubby legs of ancient sled dogs helped...
    on October 14, 2026 at 3:01 pm

    For centuries, dogs have helped people travel across the Arctic, hauling supplies, equipment and other goods through snowy landscapes where other domesticated animals struggled to venture. Now, a new study publishing Oct. 14 in the journal iScience finds that sled dogs might have evolved shorter legs that helped them pull loads more efficiently.

  • Could meditation reveal an SU(3) symmetry shared...
    on October 13, 2026 at 9:40 pm

    You sit down to meditate. A conversation returns, then thoughts. You bring your attention back to the breath. Sometimes, after many such returns, the effort eases. Thoughts lose their urgency, while awareness remains clear. Less occupies the mind, yet the moment still feels whole.

  • The ocean circulation that persists even after a...
    on October 13, 2026 at 7:40 pm

    The Atlantic meridional overturning circulation (AMOC) is thought to face a potentially existential threat from climate change. But attempts to model what happens to AMOC as the oceans warm show divergent outcomes, leaving its fate unclear. In a paper published in AGU Advances, Shantong Sun and Andrew Thompson use a hierarchy of models to show that the cross-hemispheric overturning could persist for centuries even as North Atlantic Deep Water (NADW) formation shuts down.

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Related

Here are links to pages about closely related subjects.

Knowledge Realm

Physical

“Fundamentals”
Law (Constant) Relativity
Force Gravity, Electromagnetism (Light, Color)
Matter (Microscope) Molecule, Atom (Periodic Table), Particle

“Space”
Universe (Astronomical Instrument)
Galaxy Milky Way, Andromeda
Planetary System Star, Brown Dwarf, Planet, Moon

Our Neighborhood
Solar System Sun
Terrestrial Planet Mercury, Venus, Earth (Moon), Mars
Asteroid Belt Ceres, Vesta
Jovian Planet Jupiter, Saturn, Uranus, Neptune
Trans-Neptunian Object
Kuiper Belt Pluto, Haumea, Makemake
Scattered Disc Eris, Sedna, Planet X
Oort Cloud Etc. Scholz’s Star
Small Body Comet, Centaur, Asteroid

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Notes

1.   The resources on this page are are organized by a classification scheme developed exclusively for Cosma.