Gravitation
Gravitation
Gravitation (pronounced: /ˌɡravɪˈteɪʃən/), also known as gravity, 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.
Etymology
The term "gravitation" is derived from the Latin word "gravitas", which means "weight". The concept of gravitation was first formalized by Isaac Newton, who proposed the universal law of gravitation.
Related Terms
- Mass: The property of a physical body which determines the strength of its mutual gravitational attraction to other bodies.
- Energy: The capacity of a physical system to perform work.
- Planet: A celestial body moving in an elliptical orbit around a star.
- Star: A fixed luminous point in the night sky which is a large, remote incandescent body like the sun.
- Galaxy: A system of millions or billions of stars, together with gas and dust, held together by gravitational attraction.
- Light: Electromagnetic radiation that can be detected by the human eye.
- Isaac Newton: An English mathematician, physicist, astronomer, and author who is widely recognized as one of the most influential scientists of all time.
- Universal law of gravitation: The law of physics that states that every point mass attracts every other point mass by a force acting along the line intersecting both points.
External links
- Medical encyclopedia article on Gravitation
- Wikipedia's article - Gravitation
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