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A science fair or engineering fair is an event hosted by a school that offers students the opportunity to experience the practices of science and engineering for themselves. In the United States, the Next Generation Science Standards makes experiencing the practices of science and engineering one of the three pillars of science education.
A hopper is a large, inverted pyramidal or conical container used in industrial processes to hold particulate matter or flowable material of any sort (e.g. dust, gravel, nuts, or seeds) and dispense these from the bottom when needed. In some specialized applications even small metal or plastic assembly components can be loaded and dispensed by ...
A small manhole, too small for access but useful for washing out the boiler, either as an inlet for a hose or as a drain for removed mud. See also washout plug Priming Where a sudden reduction of steam pressure caused by a large, suddenly applied load may result in boiler water being pulled into the pipework. Regulator Rocking grate
The Low Impact Development Center, Inc., a non-profit water resources research organization, was formed in 1998 to work with government agencies and institutions to further the science, understanding, and implementation of LID and other sustainable environmental planning and design approaches, such as Green Infrastructure and the Green Highways ...
Drainage is the natural or artificial removal of a surface's water and sub-surface water from an area with excess water. The internal drainage of most agricultural ...
In January 1961 he befriended Canadian lepidopterist Gary Botting, the 1960 U.S. Science Fair winner in zoology (who had first visited the Haldanes along with Susan Brown, 1960 U.S. National Science Fair winner in botany), inviting him to share the results of his experiments hybridising Antheraea silk moths.
The common myth often refers to the draining action of flush toilets and bathtubs. In fact, rotation is determined by whatever minor rotation is initially present at the time the water starts to drain, as the magnitude of the coriolis acceleration is negligibly small compared to the inertial acceleration of flow within a typical basin. [446]
These drainage geocomposites also make effective drains to intercept water in a capillary zone where frost heave or salt migration is a problem. [ citation needed ] In all cases, the liquid enters through the geotextile and then travels horizontally within the geonet to a suitable exit.