What does "g" mean in English?
or g. noun, plural G's or Gs, g's or gs. the seventh letter of the English alphabet, a consonant. any spoken sound represented by the letter G or g, as in get, German, or camouflage. a written or printed representation of the letter G or g. a device, as a printer's type, for reproducing the letter G or g.
What is a G note?
British Dictionary definitions for g (3 of 4) 1 a note having a frequency of 392 hertz (G above middle C) or this value multiplied or divided by any power of 2; the fifth note of the scale of C major 2 a key, string, or pipe producing this note 3 the major or minor key having this note as its tonic
Why is the value of G so difficult to measure?
G is quite difficult to measure because gravity is much weaker than other fundamental forces, and an experimental apparatus cannot be separated from the gravitational influence of other bodies.
How can the mutually exclusive values of G be explained?
A controversial 2015 study of some previous measurements of G, by Anderson et al., suggested that most of the mutually exclusive values in high-precision measurements of G can be explained by a periodic variation. The variation was measured as having a period of 5.9 years, similar to that observed in length-of-day (LOD) measurements, hinting at a common physical cause that is not necessarily a variation in G. A response was produced by some of the original authors of the G measurements used in Anderson et al. This response notes that Anderson et al. not only omitted measurements, but that they also used the time of publication rather than the time the experiments were performed. A plot with estimated time of measurement from contacting original authors seriously degrades the length of day correlation. Also, consideration of the data collected over a decade by Karagioz and Izmailov shows no correlation with length of day measurements. As such, the variations in G most likely arise from systematic measurement errors which have not properly been accounted for. Under the assumption that the physics of type Ia supernovae are universal, analysis of observations of 580 type Ia supernovae has shown that the gravitational constant has varied by less than one part in ten billion per year over the last nine billion years according to Mould et al. (2014).
What is the attractive force between two point-like bodies?
According to Newton's law of universal gravitation, the attractive force ( F) between two point-like bodies is directly proportional to the product of their masses ( m1 and m2) and inversely proportional to the square of the distance, r, between them:
What is Newton's law of gravity?
The existence of the constant is implied in Newton's law of universal gravitation as published in the 1680s (although its notation as G dates to the 1890s), but is not calculated in his Philosophiæ Naturalis Principia Mathematica where it postulates the inverse-square law of gravitation. In the Principia, Newton considered the possibility of measuring gravity's strength by measuring the deflection of a pendulum in the vicinity of a large hill, but thought that the effect would be too small to be measurable. Nevertheless, he estimated the order of magnitude of the constant when he surmised that "the mean density of the earth might be five or six times as great as the density of water", which is equivalent to a gravitational constant of the order:
What is the standard gravitational parameter?
The standard gravitational parameter GM appears as above in Newton's law of universal gravitation, as well as in formulas for the deflection of light caused by gravitational lensing, in Kepler's laws of planetary motion, and in the formula for escape velocity .
What is the gravitational constant?
The gravitational constant is a defining constant in some systems of natural units, particularly geometrized unit systems, such as Planck units and Stoney units. When expressed in terms of such units, the value of the gravitational constant will generally have a numeric value of 1 or a value close to it.
When was the first direct measurement of gravitational attraction between two bodies in the laboratory?
The first direct measurement of gravitational attraction between two bodies in the laboratory was performed in 1798, seventy-one years after Newton's death, by Henry Cavendish. He determined a value for G implicitly, using a torsion balance invented by the geologist Rev. John Michell (1753).
Mice
Configure your mouse, including the optical sensor, DPI settings, scroll and acceleration, button programming, and onboard memory. Program LIGHTSYNC.
Keyboards
Set up your keyboard with macro-ready G Keys, remap individual keys, configure multi-key bindings, or create intricate macros. Program LIGHTSYNC.
Headsets and Speakers
Set custom EQ and surround preferences, per game profile. Assign headset-mounted G Keys for faster, more precise play. Program LIGHTSYNC audio gear.
Webcams
Create camera and video profiles. Settings are stored and applied on startup. Switch profiles on the fly.
GET TO KNOW G HUB
G HUB recognizes your supported Logitech G gear, and gives you full access to their customization features. It automatically keeps firmware up to date.
Overview
G, or g, is the seventh letter of the ISO basic Latin alphabet. Its name in English is gee , plural gees.
History
The letter 'G' was introduced in the Old Latin period as a variant of 'C' to distinguish voiced /ɡ/ from voiceless /k/.
The recorded originator of 'G' is freedman Spurius Carvilius Ruga, who added letter G to the teaching of the Roman alphabet during the 3rd century BC: he was the first Roman to open a fee-paying school, around 230 BCE. At this time, 'K' h…
Pronunciation and use
In English, the letter appears either alone or in some digraphs. Alone, it represents
• a voiced velar plosive (/ɡ/ or "hard" ⟨g⟩), as in goose, gargoyle, and game;
• a voiced palato-alveolar affricate (/d͡ʒ/ or "soft" ⟨g⟩), predominates before ⟨i⟩ or ⟨e⟩, as in giant, ginger, and geology; or
• a voiced palato-alveolar sibilant (/ʒ/) in post-medieval loanwords from French, such as rouge, beige, genre (often), and margarine (rarely)
Related characters
• 𐤂 : Semitic letter Gimel, from which the following symbols originally derive
• C c : Latin letter C, from which G derives
• Γ γ : Greek letter Gamma, from which C derives in turn
• ɡ : Latin letter script small G
See also
• Carolingian G
• Hard and soft G
• Latin letters used in mathematics § Gg
External links
• Media related to G at Wikimedia Commons
• The dictionary definition of G at Wiktionary
• The dictionary definition of g at Wiktionary
• Lewis and Short Latin Dictionary: G