What is "einstein"

as a type-name for a person of genius, 1920, in reference to German-born theoretical physicist Albert Einstein (1879-1955), who was world-famous from 1919 through media accounts of his work in theoretical physics. According to "German-American Names" (George F. Jones, 3rd ed., 2006) it means literally "place encompassed by a stone wall."

n. (''photochemistry'') One mole of photons, regardless of frequency, as used to measure irradiance.

An einstein is a unit defined as the energy in one mole (6.022×10) of photons. Because energy is inversely proportional to wavelength, the unit is frequency dependent. This unit is not part of the International System of Units and is redundant with the joule.

In studies of photosynthesis the einstein is sometimes used with a different definition of one mole of photons. As such, photosynthetically active radiation (PAR) was formerly often reported in microeinsteins per second per square meter (μE m s). This usage is also not part of the International System of Units and when used this way it is redundant with the mole.

Since the unit does not have a standard definition and is not part of the SI system, it is usually better to avoid its use. The same information about photosynthetically active radiation can be conveyed using the SI convention by stating something such as, "The photon flux was 1500 μmol m s".

This unit was named after the German physicist, Albert Einstein.

Einstein is a large lunar crater that lies along the western limb of the Moon, making it difficult to observe from the Earth. The visibility of this formation is affected by libration effects, but even under the best conditions not much detail can be observed except from lunar orbit. Nearby craters of note include Moseley just to the north, Dalton along the eastern rim, Vasco da Gama just to the southeast, and Bohr to the south-southeast. The formation Vallis Bohr is visible to the south.

The outer rim of this walled plain has been strongly obliterated by many small impacts. Occupying the center of the interior floor is Einstein A, an impact crater with terraced inner walls and a central peak. The outer rampart of this concentric crater spreads across the interior floor, covering over half the diameter of Einstein. Several smaller craters also lie scattered across the floor, but there are sections of relatively flat surface in the southwest part of the floor. Two small craters on the west side have fissured floors. These are believed to be secondary craters from the Orientale impact to the south.

Widespread version that this crater was discovered by Patrick Moore in 1939 is probably erroneous. In the middle of the 20th century Hugh Percy Wilkins designated this crater Caramuel to honor Juan Caramuel y Lobkowitz. The crater was known under this unofficial name for some time, but this name (and almost all other Wilkins' designations) wasn't adopted by the International Astronomical Union. In 1963 E. Whitaker and D.W.G. Arthur designated this crater Einstein after Albert Einstein, and in 1964 this name was adopted by the IAU. Wilkins' map also contains a crater called Einstein, but it is a less noticeable one – .

Albert Einstein was a German-born theoretical physicist.

Einstein may also refer to:

• Einstein (surname), a surname (including a list of people with the name)

Einstein is a German surname. Notable people with the surname include:

• Albert Einstein (1879–1955), German-American physicist
• Einstein family, his family
  • Mileva Einstein (née Marić) (1875–1948), first wife of Albert Einstein
    • Hans Albert Einstein (1904–1973), Swiss-American engineer, son of Albert and Mileva
      • Bernhard Caesar Einstein (1930–2008), German-American physicist, son of Hans Albert Einstein, grandson of Albert Einstein
    • Eduard Einstein (1910–1965), second son of Albert and Mileva
  • Elsa Einstein (1876–1936), cousin and second wife of Albert Einstein
  • Hans Einstein (1923–2012), foremost authority on Valley Fever, grandson of a first cousin of Albert Einstein

Einstein (foaled October 23, 2002 in Brazil) is a Thoroughbred racehorse competing in the United States.

Einstein is the title of an infotainment show on the German-speaking Swiss public television channel SRF 1. Einstein is an in-house production by Schweizer Radio und Fernsehen (SRF) and reports on phenomena and mysteries of everyday life and of life.

Einstein is a 2008 Italian television movie written and directed by Liliana Cavani. The film is based on real life events of scientist Albert Einstein and it stars Vincenzo Amato in the title role.

Einstein (also known as the EINSTEIN Program) was originally an intrusion detection system that monitors the network gateways of government departments and agencies in the United States for unauthorized traffic. The software was developed by the United States Computer Emergency Readiness Team (US-CERT), which is the operational arm of the National Cyber Security Division (NCSD) of the United States Department of Homeland Security (DHS). The program was originally developed to provide " situational awareness" for the civilian agencies. While the first version examined network traffic while the expansion in development could look at content., today's Einstein is significantly more.

"Einstein" is a song by American recording artist Kelly Clarkson, from her fifth studio album, Stronger (2011). Originally titled as "Dumb + Dumb = You", "Einstein" was written by Clarkson, Toby Gad, Bridget Kelly, and James Fauntleroy II, with Gad handling the production. Lyrically, the song is written in a woman's first-person narrative about her acquiescence and infuriation towards her ex-lover, whom she described in the song as "dumb". Written in wordplay, it uses various mathematical-related equations and topics as rhetorical devices to describe their relationship, notably referencing the German-born physicist Albert Einstein in an metaphorical lyric, which led to the song being named after him.

Upon its release, "Einstein" received mixed reviews from music critics, whose criticism targeted the song's lyrical content, primarily the lyric "Dumb plus dumb equals you", but also complimented Clarkson's vocal performance. Propelled by digital sales during the album's release week, "Einstein" charted at number 56 in the South Korean Singles Chart. She has performed the song in select dates of her Stronger Tour.