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A typical "portable" dehumidifier can be moved about on built-in casters. A dehumidifier is an air conditioning device which reduces and maintains the level of humidity in the air. [1] This is done usually for health or thermal comfort reasons or to eliminate musty odor and to prevent the growth of mildew by extracting water from the air. It ...
The Lower Paleolithic period lasted over 3 million years, during which there many human-like species evolved including toward the end of this period, Homo sapiens.The original divergence between humans and chimpanzees occurred 13 (), however interbreeding continued until as recently as 4 Ma, with the first species clearly belonging to the human (and not chimpanzee) lineage being ...
The following articles cover the timeline of United States inventions: Timeline of United States inventions (before 1890), before the turn of the century; Timeline of United States inventions (1890–1945), before World War II; Timeline of United States inventions (1946–1991), during the Cold War
The manufacturing operations of Hughes' Sharp-Hughes Tool Company at 2nd and Girard Streets in Houston, Texas. Hughes Sr. married Allene Stone Gano, on June 24, 1904, in Dallas County, Texas, and engaged in various mining business endeavors before capitalizing on the Spindletop oil discovery in Texas, as a result of which he began devoting his full time to the oil business.
[132] to take azimuths, altitude, time and declination while making observations [failed verification] Also known as an altitude Instrument, the equatorial sextant was first invented and made by William Austin Burt. He patented it in November 1856, in the United States as U.S. patent #16,002. [133] 1857 Toilet paper (mass-produced and rolled)
B. Babbitt (alloy) Baby monitor; Bait car; Ballistic electron emission microscopy; Balloon catheter; Ballpoint pen; Banjo clock; Barbed wire; Barcode; Barcode reader
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The starting gate was invented by Clay Puett of Chillicothe, Texas, when it was used at Lansdowne Park in Vancouver, British Columbia, Canada for the first time on July 1, 1939. [291] U.S. patent #2,232,675 was filed by Puett on August 7, 1939, and issued to him on February 18, 1941.