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  2. Gravitational energy - Wikipedia

    en.wikipedia.org/wiki/Gravitational_energy

    Gravitational energy or gravitational potential energy is the potential energy a massive object has due to its position in a gravitational field. It is the mechanical work done by the gravitational force to bring the mass from a chosen reference point (often an "infinite distance" from the mass generating the field) to some other point in the ...

  3. Gravity - Wikipedia

    en.wikipedia.org/wiki/Gravity

    Gravitation, also known as gravitational attraction, is the mutual attraction between all masses in the universe.Gravity is the gravitational attraction at the surface of a planet or other celestial body; [6] gravity may also include, in addition to gravitation, the centrifugal force resulting from the planet's rotation (see § Earth's gravity).

  4. Gravitational potential - Wikipedia

    en.wikipedia.org/wiki/Gravitational_potential

    The gravitational potential (V) at a location is the gravitational potential energy (U) at that location per unit mass: =, where m is the mass of the object. Potential energy is equal (in magnitude, but negative) to the work done by the gravitational field moving a body to its given position in space from infinity.

  5. Negative energy - Wikipedia

    en.wikipedia.org/wiki/Negative_energy

    Conversely, as two massive objects move towards each other, the motion accelerates under gravity causing an increase in the (positive) kinetic energy of the system and, in order to conserve the total sum of energy, the increase of the same amount in the gravitational potential energy of the object is treated as negative. [1]

  6. Glossary of physics - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_physics

    Thus, a gravitational field is used to explain and represent gravitational phenomena. It is measured in newtons per kilogram (N/kg). gravitational potential The gravitational potential at a location is equal to the work (energy transferred) per unit mass that is done by the force of gravity to move an object to a fixed reference location ...

  7. Here's why preeclampsia remains one of the most worrisome ...

    www.aol.com/heres-why-preeclampsia-remains-one...

    Few periods of life are more closely monitored and supervised than during one's pregnancy. Throughout this time, trained medical professionals conduct a series of prenatal visits with the mother ...

  8. Geoid - Wikipedia

    en.wikipedia.org/wiki/Geoid

    All points on a geoid surface have the same geopotential (the sum of gravitational potential energy and centrifugal potential energy). At this surface, apart from temporary tidal fluctuations, the force of gravity acts everywhere perpendicular to the geoid, meaning that plumb lines point perpendicular and bubble levels are parallel to the geoid.

  9. This Christmas, ask for genetic testing. It could save your life.

    www.aol.com/christmas-ask-genetic-testing-could...

    Zaklaik agrees: "We are now in an era where we know that genetic testing really leads to good outcomes, meaning that knowledge is power." That knowledge, however, ...