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The T3, C3, Cz, C4, and T4 electrodes are placed at marks made at intervals of 10%, 20%, 20%, 20%, 20% and 10%, respectively, measured across the top of the head. Skull circumference is measured just above the ears (T3 and T4), just above the bridge of the nose (at Fpz), and just above the occipital point (at Oz).
In electronics, noise temperature is one way of expressing the level of available noise power introduced by a component or source. The power spectral density of the noise is expressed in terms of the temperature (in kelvins) that would produce that level of Johnson–Nyquist noise, thus:
Child pornography is illegal in most countries, but there is substantial variation in definitions, categories, penalties, and interpretations of laws. Differences include the definition of "child" under the laws, which can vary with the age of sexual consent; the definition of "child pornography" itself, for example on the basis of medium or degree of reality; and which actions are criminal (e ...
Left 4 Dead 2 is a 2009 first-person shooter game developed and published by Valve.The sequel to Left 4 Dead (2008) and the second game in the Left 4 Dead series, it was released for Microsoft Windows and Xbox 360 in November 2009, Mac OS X in October 2010, and Linux in July 2013.
Formally, the wavelength version of Wien's displacement law states that the spectral radiance of black-body radiation per unit wavelength, peaks at the wavelength given by: = where T is the absolute temperature and b is a constant of proportionality called Wien's displacement constant, equal to 2.897 771 955... × 10 −3 m⋅K, [1] [2] or ...
Joshua David Shapiro [1] (born June 20, 1973) is an American lawyer and politician serving since 2023 as the 48th governor of Pennsylvania. A member of the Democratic Party, he was the 50th attorney general of Pennsylvania from 2017 to 2023 and served on the Montgomery County Board of Commissioners from 2012 to 2017. [2]
The blue line represents global surface temperature reconstructed over the last 2,000 years using proxy data from tree rings, corals, and ice cores. [1] The red line shows direct surface temperature measurements since 1880. [2] Global surface temperature (GST) is the average temperature of Earth's surface.
The containment building is the last of several safeguards that prevent the release of radioactivity to the environment. Many commercial reactors are contained within a 1.2-to-2.4-metre (3.9 to 7.9 ft) thick pre-stressed, steel-reinforced, air-tight concrete structure that can withstand hurricane-force winds and severe earthquakes.