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Front of engine to the left. 2-4-4 Mason Bogie locomotive #6 on the Boston, Revere Beach and Lynn Railroad as built in 1886. Lithuanian Tk Under the Whyte notation for the classification of steam locomotives by wheel arrangement, 2-4-4 is a steam locomotive with two unpowered leading wheels followed by four powered driving wheels and four ...
Google Earth. Google Earth is a computer program that renders a 3D representation of Earth based primarily on satellite imagery. The program maps the Earth by superimposing satellite images, aerial photography, and GIS data onto a 3D globe, allowing users to see cities and landscapes from various angles. Users can explore the globe by entering ...
American Fuzzy Lop ( AFL ), stylized in all lowercase as american fuzzy lop, is a free software fuzzer that employs genetic algorithms in order to efficiently increase code coverage of the test cases. So far it has detected dozens of significant software bugs in major free software projects, including X.Org Server, [2] PHP, [3] OpenSSL, [4] [5 ...
Rebecca Moore (scientist) Rebecca Moore in 2016, wearing her Rachel Carson Award medal. Rebecca Moore (born 1955) [1] is an American software engineer, director of Google Earth, and director and founder of the Google Earth Outreach and Google Earth Engine computer mapping projects. [2]
The World Resources Institute ( WRI) is a global research non-profit organization established in 1982 with funding from the MacArthur Foundation [3] [4] under the leadership of James Gustave Speth. [5] [6] Subsequent presidents include Jonathan Lash (1993 - 2011), Andrew D. Steer [3] (2012 - 2021) [7] and current president Ani Dasgupta (2021-).
2-4-2. Under the Whyte notation for the classification of steam locomotives, 2-4-2 represents the wheel arrangement of two leading wheels on one axle, four powered and coupled driving wheels on two axles and two trailing wheels on one axle. The type is sometimes named Columbia after a Baldwin 2-4-2 locomotive was showcased at the 1893 World's ...
Swiss classification: 2/3+2/3; The UIC classification is refined to (1'B)B1' for a Mallet locomotive. A similar wheel arrangement has been used for Garratt locomotives, but it is referred to as 2-4-0+0-4-2 since both engine units can pivot. US examples. This articulated wheel arrangement was rare in North America; example was the Mallet ...
The Blue Engine 4 [2] ( BE-4) is an oxygen-rich [3] liquefied-methane-fueled staged-combustion rocket engine produced by Blue Origin. The BE-4 was developed with private and public funding. [4] The engine has been designed to produce 2.4 meganewtons (550,000 lbf) of thrust at sea level. [5]