Natural laws of Science
Natural law noun 1. an ethical belief or system of beliefs supposed to be inherent in human nature and discoverable by reason rather than revelation 2. a nonlogically necessary truth; law of nature See also nomological (sense 2) 3. the philosophical doctrine that the authority of the legal system or…
Units of gravitational constant
We use the gravitational constant in this form because in Newtonian physics, it makes the most sense: it is the conversion factor between force (mass times acceleration) and the product of the inverse square law (m_1m_2/r^2) which has units of mass squared divided by length squared. However, in relativistic…
Dark matter percentage
Scientists have struggled for decades to identify the constituent particles of dark matter, but they’ve had little to show for all their efforts. A new study at Case Western Reserve University is now advancing the radical new hypothesis that dark matter may in fact be made not of exotic subatomic particles…
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Anti-Dark matter
From: Damian The short answer is that we re not sure - scientists have not yet discovered what dark matter really is, and so we can t yet be sure if it has an antimatter counterpart. People have done a lot of thinking about this, however. In the most popular theories, the dark matter is composed of…
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Moons gravitational pull
Myth 1. The moon has a permanent dark side. Most grammar school students know that the moon presents only one face or side to the Earth. This is (roughly) true and gives rise to the idea that there is a permanently dark side of the moon, a thought immortalized in Pink Flyod’s music and elsewhere. In…
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Mass of dark matter
This is a view of the universe from NASA s Fermi Gamma-ray Space Telescope. Physicists at Brown University studied seven dwarf galaxies (circled in white). Their observations indicate those galaxies are full of dark matter because their stars’ motion cannot be explained by their mass alone, making them…
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Gravitational field formula
The Schwarzschild radius (sometimes historically referred to as the gravitational radius ) is the radius of a sphere such that, if all the mass of an object were to be compressed within that sphere, the escape velocity from the surface of the sphere would equal the speed of light. An example of an object…
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Definition of universal Gravitation
They have likewise discovered two lesser stars, or satellites, which revolve about Mars; whereof the innermost is distant from the centre of the primary planet exactly three of his diameters, and the outermost, five; the former revolves in the space of ten hours, and the latter in twenty-one and a half;…
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