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Hollow Moon
The Hollow Moon hypothesis and the closely related Spaceship Moon hypothesis propose that Earth's Moon is either wholly hollow or otherwise contains a substantial interior space. No scientific evidence exists to support the idea; seismic observations and other data collected since spacecraft began to orbit or land on the Moon indicate that it has a thin crust, extensive mantle and small, dense core, although overall it is much less dense than Earth. The first publication to mention a hollow Moon was H. G. Wells' 1901 novel ''The First Men in the Moon''. In 1970, two Soviet authors published a short piece in the popular press speculating that the Moon might be "the Creation of Alien Intelligence". Since the late 1970s, the hypothesis has been endorsed by conspiracy theorists like Jim Marrs and David Icke. Introduction The Hollow Moon hypothesis is the suggestion that the Moon is hollow, usually as a product of an alien civilization. It is often called the Spaceship Moon hypo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moon
The Moon is Earth's only natural satellite. It is the fifth largest satellite in the Solar System and the largest and most massive relative to its parent planet, with a diameter about one-quarter that of Earth (comparable to the width of Australia). The Moon is a planetary-mass object with a differentiated rocky body, making it a satellite planet under the geophysical definitions of the term and larger than all known dwarf planets of the Solar System. It lacks any significant atmosphere, hydrosphere, or magnetic field. Its surface gravity is about one-sixth of Earth's at , with Jupiter's moon Io being the only satellite in the Solar System known to have a higher surface gravity and density. The Moon orbits Earth at an average distance of , or about 30 times Earth's diameter. Its gravitational influence is the main driver of Earth's tides and very slowly lengthens Earth's day. The Moon's orbit around Earth has a sidereal period of 27.3 days. During each synodic period ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harvard University Press
Harvard University Press (HUP) is a publishing house established on January 13, 1913, as a division of Harvard University, and focused on academic publishing. It is a member of the Association of American University Presses. After the retirement of William P. Sisler in 2017, the university appointed as Director George Andreou. The press maintains offices in Cambridge, Massachusetts near Harvard Square, and in London, England. The press co-founded the distributor TriLiteral LLC with MIT Press and Yale University Press. TriLiteral was sold to LSC Communications in 2018. Notable authors published by HUP include Eudora Welty, Walter Benjamin, E. O. Wilson, John Rawls, Emily Dickinson, Stephen Jay Gould, Helen Vendler, Carol Gilligan, Amartya Sen, David Blight, Martha Nussbaum, and Thomas Piketty. The Display Room in Harvard Square, dedicated to selling HUP publications, closed on June 17, 2009. Related publishers, imprints, and series HUP owns the Belknap Press imprint, whi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seismometers
A seismometer is an instrument that responds to ground noises and shaking such as caused by earthquakes, volcanic eruptions, and explosions. They are usually combined with a timing device and a recording device to form a seismograph. The output of such a device—formerly recorded on paper (see picture) or film, now recorded and processed digitally—is a seismogram. Such data is used to locate and characterize earthquakes, and to study the Earth's internal structure. Basic principles A simple seismometer, sensitive to up-down motions of the Earth, is like a weight hanging from a spring, both suspended from a frame that moves along with any motion detected. The relative motion between the weight (called the mass) and the frame provides a measurement of the vertical ground motion. A rotating drum is attached to the frame and a pen is attached to the weight, thus recording any ground motion in a seismogram. Any movement from the ground moves the frame. The mass tends not to m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Upper Mantle (Earth)
The upper mantle of Earth is a very thick layer of rock inside the planet, which begins just beneath the crust (at about under the oceans and about under the continents) and ends at the top of the lower mantle at . Temperatures range from approximately at the upper boundary with the crust to approximately at the boundary with the lower mantle. Upper mantle material that has come up onto the surface comprises about 55% olivine, 35% pyroxene, and 5 to 10% of calcium oxide and aluminum oxide minerals such as plagioclase, spinel, or garnet, depending upon depth. Seismic structure The density profile through Earth is determined by the velocity of seismic waves. Density increases progressively in each layer, largely due to compression of the rock at increased depths. Abrupt changes in density occur where the material composition changes. The upper mantle begins just beneath the crust and ends at the top of the lower mantle. The upper mantle causes the tectonic plates to move. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bad Astronomer
Philip Cary Plait (born September 30, 1964), also known as The Bad Astronomer, is an American astronomer, skeptic, and popular science blogger. Plait has worked as part of the Hubble Space Telescope team, images and spectra of astronomical objects, as well as engaging in public outreach advocacy for NASA missions. He has written two books, ''Bad Astronomy'' and ''Death from the Skies''. He has also appeared in several science documentaries, including ''How the Universe Works'' on the Discovery Channel. From August 2008 through 2009, he served as president of the James Randi Educational Foundation. Additionally, he wrote and hosted episodes of '' Crash Course'' Astronomy, which aired its last episode in 2016. Early life Plait grew up in the Washington, D.C. area. He has said he became interested in astronomy when his father brought home a telescope when Plait was 5 years old or so. According to Plait, he "aimed it at Saturn that night. One look, and that was it. I was hooked." ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Density
Density (volumetric mass density or specific mass) is the substance's mass per unit of volume. The symbol most often used for density is ''ρ'' (the lower case Greek letter rho), although the Latin letter ''D'' can also be used. Mathematically, density is defined as mass divided by volume: : \rho = \frac where ''ρ'' is the density, ''m'' is the mass, and ''V'' is the volume. In some cases (for instance, in the United States oil and gas industry), density is loosely defined as its weight per unit volume, although this is scientifically inaccurate – this quantity is more specifically called specific weight. For a pure substance the density has the same numerical value as its mass concentration. Different materials usually have different densities, and density may be relevant to buoyancy, purity and packaging. Osmium and iridium are the densest known elements at standard conditions for temperature and pressure. To simplify comparisons of density across different s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Humanist
''New Humanist'' is a quarterly magazine, published by the Rationalist Association in the UK, that focuses on culture, news, philosophy, and science from a sceptical perspective. History The ''New Humanist'' has been in print for more than 131 years; starting out life as ''Watts's Literary Guide'', founded by C. A. Watts in November 1885. It later became ''The Literary Guide and Rationalist Review'' (1894–1954), ''Humanist'' (1956–1971) and the ''New Humanist'' in 1972. Notable columnists have included Laurie Taylor, Simon Hoggart and Sally Feldman. In 2003 Hazhir Teimourian, a reviewer for the magazine, quit over a controversial cartoon depicting Christ slumped in the arms of the Virgin Mary. In 2005 Caspar Melville took over as managing editor of the magazine and CEO of the Rationalist Association. Daniel Trilling assumed the position of Editor in 2013. Samira Shackle became Editor in Spring 2020. References External links The Literary Guide and Rationalist Review ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Sydney Morning Herald
''The Sydney Morning Herald'' (''SMH'') is a daily compact newspaper published in Sydney, New South Wales, Australia, and owned by Nine. Founded in 1831 as the ''Sydney Herald'', the ''Herald'' is the oldest continuously published newspaper in Australia and "the most widely-read masthead in the country." The newspaper is published in compact print form from Monday to Saturday as ''The Sydney Morning Herald'' and on Sunday as its sister newspaper, '' The Sun-Herald'' and digitally as an online site and app, seven days a week. It is considered a newspaper of record for Australia. The print edition of ''The Sydney Morning Herald'' is available for purchase from many retail outlets throughout the Sydney metropolitan area, most parts of regional New South Wales, the Australian Capital Territory and South East Queensland. Overview ''The Sydney Morning Herald'' publishes a variety of supplements, including the magazines ''Good Weekend'' (included in the Saturday edition of ''Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Daily Express
The ''Daily Express'' is a national daily United Kingdom middle-market newspaper printed in tabloid format. Published in London, it is the flagship of Express Newspapers, owned by publisher Reach plc. It was first published as a broadsheet in 1900 by Sir Arthur Pearson. Its sister paper, the ''Sunday Express'', was launched in 1918. In June 2022, it had an average daily circulation of 201,608. The paper rose to become the largest circulation newspaper in the world under Lord Beaverbrook, going from 2 million in the 1930s to 4 million in the 1940s. It was acquired by Richard Desmond's company Northern & Shell in 2000. Hugh Whittow was the editor from February 2011 until he retired in March 2018. In February 2018 Trinity Mirror acquired the ''Daily Express'', and other publishing assets of Northern & Shell, in a deal worth £126.7 million. To coincide with the purchase the Trinity Mirror group changed the name of the company to ''Reach''. Hugh Whittow resigned as editor a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inquisitr
Inquisitr, a website started in 2007 for news and entertainment stories, was relaunched in May 2011. It is owned and operated by Inquisitr Ltd. History The web domain for Inquisitr was registered in Iceland on August 6, 2007. The company was founded by former TechCrunch journalist Duncan Riley, whose history of launching web businesses includes ''the Blog Herald'', launched in 2002. In 2004, he launched the blog network ''Weblog Empire'', which in 2005, served as the base site for ''b5media LLC'', of which Riley was a co-founder. The company went on to earn $15 million in profits before eventually being sold at a loss. Riley left the company with an undisclosed settlement after protesting the poor pay of its employees. Inquisitr was eventually put up for sale in 2011, with Riley citing personal reasons for the sale. The current website owner, Daniel Treisman, purchased the website via Flippa.com and invested into growing the company. Growth In an interview with AdExchanger the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Conspiracy Theory
A conspiracy theory is an explanation for an event or situation that invokes a conspiracy by sinister and powerful groups, often political in motivation, when other explanations are more probable.Additional sources: * * * * The term has a negative connotation, implying that the appeal to a conspiracy is based on prejudice or insufficient evidence. A conspiracy theory is not the same as a conspiracy; instead, it refers to a hypothesized conspiracy with specific characteristics, such as an opposition to the mainstream consensus among those people (such as scientists or historians) who are qualified to evaluate its accuracy. Conspiracy theories resist falsification and are reinforced by circular reasoning: both evidence against the conspiracy and an absence of evidence for it are re-interpreted as evidence of its truth, whereby the conspiracy becomes a matter of faith rather than something that can be proven or disproven. Studies have linked belief in conspiracy theories to dis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fringe Theory
A fringe theory is an idea or a viewpoint which differs from the accepted scholarship of the time within its field. Fringe theories include the models and proposals of fringe science, as well as similar ideas in other areas of scholarship, such as the humanities. In a narrower sense, the term ''fringe theory'' is commonly used as a pejorative; it is roughly synonymous with the term pseudo-scholarship. Precise definitions that make distinctions between widely held viewpoints, fringe theories, and pseudo-scholarship are difficult to construct because of the demarcation problem. Issues of false balance or false equivalence can occur when fringe theories are presented as being equal to widely accepted theories. Definitions Fringe theories are ideas which depart significantly from a prevailing or mainstream theory. A fringe theory is neither a majority opinion nor that of a respected minority. In general, the term ''fringe theory'' is closer to the popular understanding of the word ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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