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Ray William Johnson (born 1981 or 1982) [1] is an American internet celebrity best known for his eponymous YouTube channel and his web series on that channel, Equals Three. In 2013, the channel surpassed 10 million subscribers and had over 2 billion views, making it one of the most watched and subscribed to channels at the time.
The following is the list of teams that have overcome 3–0 series deficits in a best-of-seven playoff series, otherwise known as a reverse sweep. The listed teams won four consecutive games after losing the first three. Unsuccessful comebacks are also listed, in which teams evened a series after being behind 3–0, then lost game seven of the ...
Rydberg constant. In spectroscopy, the Rydberg constant, symbol for heavy atoms or for hydrogen, named after the Swedish physicist Johannes Rydberg, is a physical constant relating to the electromagnetic spectra of an atom. The constant first arose as an empirical fitting parameter in the Rydberg formula for the hydrogen spectral series, but ...
Photon energy is the energy carried by a single photon. The amount of energy is directly proportional to the photon's electromagnetic frequency and thus, equivalently, is inversely proportional to the wavelength. The higher the photon's frequency, the higher its energy. Equivalently, the longer the photon's wavelength, the lower its energy.
At the time, most of the public hospitals would report the wounded revolutionaries to SAVAK but Dr. Sapir's hospital was the only hospital to treat without informing the SAVAK agents. Dr. Dr. Sapir Hospital's actions were so instrumental that Ayatollah Khomeini himself wrote a personal note thanking the hospital for its help after the ...
The speed of light in vacuum, commonly denoted c, is a universal physical constant that is exactly equal to 299,792,458 metres per second (approximately 300,000 kilometres per second; 186,000 miles per second; 671 million miles per hour). [Note 3] According to the special theory of relativity, c is the upper limit for the speed at which ...
As of 2010, there were nearly 14 million Jews around the world, roughly 0.2% of the world's population at the time. [252] According to the 2007 estimates of The Jewish People Policy Planning Institute , the world's Jewish population is 13.2 million. [ 253 ]
Electric current is a coarse, average quantity that tells what is happening in an entire wire. At position r at time t, the distribution of charge flowing is described by the current density: [6] where. j(r, t) is the current density vector; vd(r, t) is the particles' average drift velocity (SI unit: m ∙ s −1 );