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Annie Jump Cannon
Annie Jump Cannon (; December 11, 1863 – April 13, 1941) was an American astronomer whose cataloging work was instrumental in the development of contemporary stellar classification. With Edward C. Pickering, she is credited with the creation of the Harvard Classification Scheme, which was the first serious attempt to organize and classify stars based on their temperatures and spectral types. She developed the mnemonic "Oh! Be A Fine Girl — Kiss Me!" used by students to memorize the spectral classification of stars. She was nearly deaf throughout her career after 1893, as a result of scarlet fever. She was a suffragist and a member of the National Women's Party. Personal life Cannon was born on December 11, 1863, in Dover, Delaware. She was the eldest of three daughters born to Wilson Cannon, a Delaware shipbuilder and state senator, and his second wife, Mary Jump. Cannon's mother was the first person to teach her the constellations and she encouraged her to follow her own in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dover, Delaware
Dover () is the capital and second-largest city of the U.S. state of Delaware. It is also the county seat of Kent County and the principal city of the Dover, DE, Metropolitan Statistical Area, which encompasses all of Kent County and is part of the Philadelphia– Wilmington– Camden, PA– NJ–DE– MD, Combined Statistical Area. It is located on the St. Jones River in the Delaware River coastal plain. It was named by William Penn for Dover in Kent, England (for which Kent County is named). As of 2010, the city had a population of 36,047. Etymology The city is named after Dover, Kent, in England. First recorded in its Latinised form of ''Portus Dubris'', the name derives from the Brythonic word for waters (''dwfr'' in Middle Welsh). The same element is present in the town's French (Douvres) and Modern Welsh (Dofr) forms. History Dover was founded as the court town for newly established Kent County in 1683 by William Penn, the proprietor of the territory generally known ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
State Senator
A state senator is a member of a state's senate in the bicameral legislature of 49 U.S. states, or a member of the unicameral Nebraska Legislature. Description A state senator is a member of an upper house in the bicameral legislatures of 49 U.S. states or a member of the unicameral Nebraska Legislature. History There are typically fewer state senators than there are members of a state's lower house; a senator's job is to represent the people at a higher level than a state representative in the lower house. In the past, this meant that senators represented various geographic regions within a state, regardless of the population, as a way of balancing the power of the lower house, which was apportioned according to population. This system changed in 1963, when the Supreme Court of the United States ruled that state legislatures must apportion seats in both houses according to population. However, the single-member district system remained, and as a result, the State Senates b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Photographic Magnitude
Photographic magnitude ( or ) is a measure of the relative brightness of a star or other astronomical object as imaged on a photographic film emulsion with a camera attached to a telescope. An object's apparent photographic magnitude depends on its intrinsic luminosity, its distance and any extinction of light by interstellar matter existing along the line of sight to the observer. Photographic observations have now been superseded by electronic photometry such as CCD charge-couple device cameras that convert the incoming light into an electric current by the photoelectric effect. Determination of magnitude is made using a photometer. Method Prior to photographic methods to determine magnitude, the brightness of celestial objects was determined by visual photometric methods. This was simply achieved with the human eye by compared the brightness of an astronomical object with other nearby objects of known or fixed magnitude : especially regarding stars, planets and other pl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harvard Computers
The Harvard Computers was a team of women working as skilled workers to process astronomical data at the Harvard Observatory in Cambridge, Massachusetts, United States. The team was directed by Edward Charles Pickering (1877 to 1919) and, following his death in 1919, by Annie Jump Cannon. "The women were challenged to make sense of these patterns by devising a scheme for sorting the stars into categories. Annie Jump Cannon's success at this activity made her famous in her own lifetime, and she produced a stellar classification system that is still in use today. Antonia Maury discerned in the spectra a way to assess the relative sizes of stars, and Henrietta Leavitt showed how the cyclic changes of certain variable stars could serve as distance markers in space." Other computers in the team included Williamina Fleming and Florence Cushman. Although these women started primarily as calculators, they made significant contributions to astronomy, much of which they published in resea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Annie Jump Cannon & Henrietta Swan Leavitt, 1913
Annie may refer to: People and fictional characters * Annie (given name), a given name and a list of people and fictional characters with the name * Annie (actress) (born 1975), Indian actress * Annie (singer) (born 1977), Norwegian singer Theatre and film * ''Annie'' (musical), a 1977 musical ** ''Annie'' (1982 film) *** ''Annie'' (1982 film soundtrack) *** '' Annie: A Royal Adventure!'', a 1995 telefilm sequel ** ''Annie'' (1999 film) *** ''Annie'' (1999 film soundtrack) ** ''Annie'' (2014 film) *** ''Annie'' (2014 film soundtrack) * ''Annie'' (1976 film), a British-Italian film Music * ''Annie'' (Anne Murray album) (1972) * "Annie" (song), a 1999 song by Our Lady Peace * "Annie", a song by SafetySuit * "Annie", a song by Pete Townshend from ''Rough Mix'' * "Annie", a 1972 song by Sutherland Brothers * "Annie", a 1995 song by Elastica from the album ''Elastica'' Other uses * Cyclone Annie (other) * ''Annie'' (locomotive) * ''Annie'' (sloop), a ship bui ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harvard College
Harvard College is the undergraduate college of Harvard University, an Ivy League research university in Cambridge, Massachusetts. Founded in 1636, Harvard College is the original school of Harvard University, the oldest institution of higher learning in the United States and among the most prestigious in the world. Part of the Faculty of Arts and Sciences, Harvard College is Harvard University's traditional undergraduate program, offering AB and SB degrees. It is highly selective, with fewer than five percent of applicants being offered admission in recent years. Harvard College students participate in more than 450 extracurricular organizations and nearly all live on campus—first-year students in or near Harvard Yard, and upperclass students in community-oriented "houses". History The school came into existence in 1636 by vote of the Great and General Court of the Massachusetts Bay Colony—though without a single building, instructor, or student. In 1638, the colleg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spectroscopy
Spectroscopy is the field of study that measures and interprets the electromagnetic spectra that result from the interaction between electromagnetic radiation and matter as a function of the wavelength or frequency of the radiation. Matter waves and acoustic waves can also be considered forms of radiative energy, and recently gravitational waves have been associated with a spectral signature in the context of the Laser Interferometer Gravitational-Wave Observatory (LIGO) In simpler terms, spectroscopy is the precise study of color as generalized from visible light to all bands of the electromagnetic spectrum. Historically, spectroscopy originated as the study of the wavelength dependence of the absorption by gas phase matter of visible light dispersed by a prism. Spectroscopy, primarily in the electromagnetic spectrum, is a fundamental exploratory tool in the fields of astronomy, chemistry, materials science, and physics, allowing the composition, physical structure and e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World's Columbian Exposition
The World's Columbian Exposition (also known as the Chicago World's Fair) was a world's fair held in Chicago (''City in a Garden''); I Will , image_map = , map_caption = Interactive Map of Chicago , coordinates = , coordinates_footnotes = , subdivision_type = Country , subdivision_name ... in 1893 to celebrate the 400th anniversary of Christopher Columbus's arrival in the New World in 1492. The centerpiece of the Fair, held in Jackson Park (Chicago), Jackson Park, was a large water pool representing the voyage Columbus took to the New World. Chicago had won the right to host the fair over several other cities, including New York City, Washington, D.C., and St. Louis. The exposition was an influential social and cultural event and had a profound effect on American Architecture of the United States, architecture, the arts, American industrial optimism, and Chicago's image. The layout of the Chicago Columbian E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blair Box Camera
Blair is an English-language name of Scottish Gaelic origin. The surname is derived from any of the numerous places in Scotland called ''Blair'', derived from the Scottish Gaelic ''blàr'', meaning "plain", "meadow" or "field", frequently a “battlefield””. The given name ''Blair'' is unisex and derived from the surname. Blair is generally a masculine name in Scotland and Canada, although it is more popular in the United States, where it is also a feminine name. A variant spelling of the given name is ''Blaire''. In 2016, in the United States, Blair was the 521st most popular name for girls born that year, and the 1807th most popular for boys. People with the surname A–E *Adam Blair (born 1986), New Zealand rugby league player *Andrew M. Blair (1818–???), American politician in Wisconsin * Andy Blair (born 1959) Scottish footballer * Anthony Blair (criminal) (1849–1879), American hanged for murder *Austin Blair (1818–1894), Governor of Michigan *B. Brian Blair (born 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Photography
Photography is the art, application, and practice of creating durable images by recording light, either electronically by means of an image sensor, or chemically by means of a light-sensitive material such as photographic film. It is employed in many fields of science, manufacturing (e.g., photolithography), and business, as well as its more direct uses for art, film and video production, recreational purposes, hobby, and mass communication. Typically, a lens is used to focus the light reflected or emitted from objects into a real image on the light-sensitive surface inside a camera during a timed exposure. With an electronic image sensor, this produces an electrical charge at each pixel, which is electronically processed and stored in a digital image file for subsequent display or processing. The result with photographic emulsion is an invisible latent image, which is later chemically "developed" into a visible image, either negative or positive, depending on the purp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Valedictorian
Valedictorian is an academic title for the highest-performing student of a graduating class of an academic institution. The valedictorian is commonly determined by a numerical formula, generally an academic institution's grade point average (GPA) system, but other methods of selection may be used or factored in such as community service or extra-curricular activity. The term is an Anglicised derivation of the Latin ''vale dicere'' ("to say farewell"), historically rooted in the valedictorian's traditional role as the final speaker at the graduation ceremony commencement before the students receive their diplomas. The valedictory address, also known as the valediction, is generally considered a final farewell to classmates, before they disperse to pursue their individual paths after graduating. The term is not widely used or known outside the US, although some countries may award equivalent titles. In Australia, the title is sometimes awarded to a member of a graduating universit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
_west_entrance_and_bell_tower.JPG "Click for more on -> Dover, Delaware")
