A parabolic microphone is a microphone that uses a parabolic reflector to collect and focus sound waves onto a transducer, in much the same way that a parabolic antenna does with radio waves. Though they lack high fidelity, parabolic microphones have great sensitivity to sounds coming from one direction, along the axis of the dish, and can pick up distant sounds.
"}{"fact":"Cats come back to full alertness from the sleep state faster than any other creature.","length":85}
{"slip": { "id": 184, "advice": "You can fail at what you don't want. So you might as well take a chance on doing what you love."}}
{"type":"standard","title":"Mark J. Lewis","displaytitle":"Mark J. Lewis","namespace":{"id":0,"text":""},"wikibase_item":"Q6768209","titles":{"canonical":"Mark_J._Lewis","normalized":"Mark J. Lewis","display":"Mark J. Lewis"},"pageid":29601434,"thumbnail":{"source":"https://upload.wikimedia.org/wikipedia/commons/thumb/0/08/Mark_J._Lewis.jpg/330px-Mark_J._Lewis.jpg","width":320,"height":400},"originalimage":{"source":"https://upload.wikimedia.org/wikipedia/commons/0/08/Mark_J._Lewis.jpg","width":2048,"height":2560},"lang":"en","dir":"ltr","revision":"1283793151","tid":"e32dd01c-10b6-11f0-a1ad-6de1a3fcf1ce","timestamp":"2025-04-03T18:10:13Z","description":"American scientist (born 1962)","description_source":"local","content_urls":{"desktop":{"page":"https://en.wikipedia.org/wiki/Mark_J._Lewis","revisions":"https://en.wikipedia.org/wiki/Mark_J._Lewis?action=history","edit":"https://en.wikipedia.org/wiki/Mark_J._Lewis?action=edit","talk":"https://en.wikipedia.org/wiki/Talk:Mark_J._Lewis"},"mobile":{"page":"https://en.m.wikipedia.org/wiki/Mark_J._Lewis","revisions":"https://en.m.wikipedia.org/wiki/Special:History/Mark_J._Lewis","edit":"https://en.m.wikipedia.org/wiki/Mark_J._Lewis?action=edit","talk":"https://en.m.wikipedia.org/wiki/Talk:Mark_J._Lewis"}},"extract":"Mark J. Lewis is a senior American aerospace and defense executive with special expertise in hypersonics. He is currently the Executive Director of the National Defense Industrial Association's Emerging Technologies Institute, following his role in the second half of 2020 as the acting US Deputy Under Secretary of Defense for Research and Engineering, and before that the Director of Defense Research and Engineering for Modernization. He was the Chief Scientist of the U.S. Air Force, Washington, D.C. from 2004 to 2008 and was the longest-serving Chief Scientist in Air Force history. He served as chief scientific adviser to the Chief of Staff and Secretary of the Air Force, and provided assessments on a wide range of scientific and technical issues affecting the Air Force mission. In this role he identified and analyzed technical issues and brought them to attention of Air Force leaders, and interacted with other Air Staff principals, operational commanders, combatant commands, acquisition, and science & technology communities to address cross-organizational technical issues and solutions. His primary areas of focus included energy, sustainment, long-range strike technologies, advanced propulsion systems, and workforce development.","extract_html":"
Mark J. Lewis is a senior American aerospace and defense executive with special expertise in hypersonics. He is currently the Executive Director of the National Defense Industrial Association's Emerging Technologies Institute, following his role in the second half of 2020 as the acting US Deputy Under Secretary of Defense for Research and Engineering, and before that the Director of Defense Research and Engineering for Modernization. He was the Chief Scientist of the U.S. Air Force, Washington, D.C. from 2004 to 2008 and was the longest-serving Chief Scientist in Air Force history. He served as chief scientific adviser to the Chief of Staff and Secretary of the Air Force, and provided assessments on a wide range of scientific and technical issues affecting the Air Force mission. In this role he identified and analyzed technical issues and brought them to attention of Air Force leaders, and interacted with other Air Staff principals, operational commanders, combatant commands, acquisition, and science & technology communities to address cross-organizational technical issues and solutions. His primary areas of focus included energy, sustainment, long-range strike technologies, advanced propulsion systems, and workforce development.
"}{"type":"standard","title":"United States Post Office (Waterloo, New York)","displaytitle":"United States Post Office (Waterloo, New York)","namespace":{"id":0,"text":""},"wikibase_item":"Q7891059","titles":{"canonical":"United_States_Post_Office_(Waterloo,_New_York)","normalized":"United States Post Office (Waterloo, New York)","display":"United States Post Office (Waterloo, New York)"},"pageid":25032533,"thumbnail":{"source":"https://upload.wikimedia.org/wikipedia/commons/thumb/d/df/United_States_Post_Office_Waterloo%2C_New_York_entrance_2013.jpg/330px-United_States_Post_Office_Waterloo%2C_New_York_entrance_2013.jpg","width":320,"height":213},"originalimage":{"source":"https://upload.wikimedia.org/wikipedia/commons/d/df/United_States_Post_Office_Waterloo%2C_New_York_entrance_2013.jpg","width":2200,"height":1467},"lang":"en","dir":"ltr","revision":"1279517623","tid":"e2eeff27-fc83-11ef-b7e2-9f9624a7bc69","timestamp":"2025-03-09T01:14:45Z","description":"United States historic place","description_source":"local","coordinates":{"lat":42.90416667,"lon":-76.86277778},"content_urls":{"desktop":{"page":"https://en.wikipedia.org/wiki/United_States_Post_Office_(Waterloo%2C_New_York)","revisions":"https://en.wikipedia.org/wiki/United_States_Post_Office_(Waterloo%2C_New_York)?action=history","edit":"https://en.wikipedia.org/wiki/United_States_Post_Office_(Waterloo%2C_New_York)?action=edit","talk":"https://en.wikipedia.org/wiki/Talk:United_States_Post_Office_(Waterloo%2C_New_York)"},"mobile":{"page":"https://en.m.wikipedia.org/wiki/United_States_Post_Office_(Waterloo%2C_New_York)","revisions":"https://en.m.wikipedia.org/wiki/Special:History/United_States_Post_Office_(Waterloo%2C_New_York)","edit":"https://en.m.wikipedia.org/wiki/United_States_Post_Office_(Waterloo%2C_New_York)?action=edit","talk":"https://en.m.wikipedia.org/wiki/Talk:United_States_Post_Office_(Waterloo%2C_New_York)"}},"extract":"US Post Office-Waterloo is a historic post office building located at Waterloo in Seneca County, New York. It was designed and built in 1924 and is one of a number of post offices in New York State designed by the Office of the Supervising Architect of the Treasury Department, James A. Wetmore. It is a symmetrically massed, one story brick building executed in the Colonial Revival style. The roof is surmounted by a wooden cornice and brick parapet.","extract_html":"
US Post Office-Waterloo is a historic post office building located at