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The gravitational redshift of a light wave as it moves upwards against a gravitational field (produced by the yellow star below). The effect is greatly exaggerated in this diagram. In physics and general relativity, gravitational redshift (known as Einstein shift in older literature) [ 1][ 2] is the phenomenon that electromagnetic waves or ...
J g is mass current density or mass flux (J g = ρ g v ρ, where v ρ is the velocity of the mass flow), with SI unit kg⋅m −2 ⋅s −1; J is electric current density; G is the gravitational constant; ε 0 is the vacuum permittivity; c is both the speed of propagation of gravity and the speed of light.
Rhodochrosite is a manganese carbonate mineral with chemical composition MnCO 3. In its pure form (rare), it is typically a rose-red colour, [ 5] but it can also be shades of pink to pale brown. It streaks white, [ 6] and its Mohs hardness varies between 3.5 and 4.5. Its specific gravity is between 3.45 and 3.6. [ 7]
The name moonstone derives from the stone's characteristic visual effect, called adularescence (or schiller), which produces a milky, bluish interior light. This effect is caused by light diffraction through alternating layers of orthoclase and albite within the stone. The diffracted light varies from white to blue, depending on the thinness of ...
The Samsung Gravity series of mobile phones includes: Samsung Gravity, released November 7, 2008. Samsung Gravity 2, released in August 2009. Samsung Gravity 3, released in June 2010. Samsung SGH-T669 (known as the "Gravity T" or "Gravity Touch"), a feature phone also released in June 2010. Samsung Gravity Smart, an Android smartphone released ...
Charoite (/ tʃ æ r oʊ. aɪ t / CHAR-ow-ait) is a rare silicate mineral with the chemical composition K(Ca,Na) 2 Si 4 O 10 (OH,F)•H 2 O, first described in 1978.It is named after the Chara River, despite its being 70 kilometres (43 mi) away from the discovery place.
GravityLight. GravityLight was a gravity-powered lamp manufactured until 2019. It was designed by the company Deciwatt for use in developing or third-world nations, as a replacement for kerosene lamps. It uses a bag filled with rocks or earth, attached to a cord, which slowly descends similar to the weight drive in a cuckoo clock.
Samsung Gravity (original) The Samsung Gravity (SGH-T459) is a slider feature phone with a full QWERTY keypad. It was first released for T-Mobile USA. The Samsung SGH-T349 is a mobile phone available through T-Mobile and announced on May 20, 2009 that has many similarities to the original Gravity.