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Mole Day originated from a celebration by educator Margaret Christoph. [5] She wrote an article about her experiences in The Science Teacher in the 1980s. [6] Inspired by this article, Maurice Oehler, a high school chemistry teacher from Prairie du Chien, Wisconsin, founded the National Mole Day Foundation (NMDF) on May 15, 1991.
Other projects like AgeGuess [8] focus on the senior demographics and enable the elderly to upload photos of themselves so the public can guess different ages. Lists of citizen science projects may change. For example, the Old Weather project website indicates that as of January 10, 2015, 51% of the logs were completed. [9]
The Avogadro constant, commonly denoted N A [1] or L, [2] is an SI defining constant with an exact value of 6.022 140 76 × 10 23 mol −1 (reciprocal moles). [3] [4] It is this defined number of constituent particles (usually molecules, atoms, ions, or ion pairs—in general, entities) per mole and used as a normalization factor in relating the amount of substance, n(X), in a sample of a ...
A mole at Bastia in Corsica. A mole is a massive structure, usually of stone, used as a pier, breakwater, or a causeway separating two bodies of water. A mole may have a wooden structure built on top of it that resembles a wooden pier. The defining feature of a mole, however, is that water cannot freely flow underneath it, unlike a true pier.
Project Mohole was an attempt in the early 1960s to drill through the Earth's crust to obtain samples of the Mohorovičić discontinuity, or Moho, the boundary between the Earth's crust and mantle. [2] The project was intended to provide an earth science complement to the high-profile Space Race.
The narrator discusses the phenomenon of a giant mole in a far village, and the attempt of the village schoolmaster to bring its existence to the public attention, only to become an object of derision to the scientific community. Without knowing the schoolmaster, the narrator tries to defend him and his honesty in a paper about the giant mole.
Britain in a Day is a Ridley Scott film, a successor project to Life in a Day, and part of the BBC's Cultural Olympiad, in which people in Britain filmed themselves on 12 November 2011, and submitted video clips online for inclusion in the film. [12] By the People is a transcription and tagging crowdsourcing project from the Library of Congress ...
The yellow building in the lower right is a mole hole, also known as a readiness crew building. Minot AFB , ND , in 1973 with its 'Christmas tree' at capacity. A Christmas tree was a type of alert area constructed by the United States Air Force (USAF) for the Strategic Air Command (SAC) during the Cold War .