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This chart shows the most common display resolutions, with the color of each resolution type indicating the display ratio (e.g., red indicates a 4:3 ratio).
Hubble Space Telescope Images of: The Tarantula Nebula Archived 2008-10-28 at the Wayback Machine; European Southern Observatory Image of: The Tarantula Nebula Archived 2009-08-03 at the Wayback Machine; The Scale of the Universe (Astronomy Picture of the Day 2012 March 12) Crowther, Paul. "Tarantula Nebula and Its Huge Stars". Deep Space ...
Wallpaper groups apply to the two-dimensional case, intermediate in complexity between the simpler frieze groups and the three-dimensional space groups. A proof that there are only 17 distinct groups of such planar symmetries was first carried out by Evgraf Fedorov in 1891 [ 1 ] and then derived independently by George Pólya in 1924. [ 2 ]
Debris from a SpaceX Falcon 9 rocket that blasted off in the United States on February 1 entered the Earth's atmosphere over Poland on Wednesday, the Polish space agency said. A 1.5 meter by one ...
Here is an explanation of some of the effects on human health caused by space travel. As a result, trekking beyond the Earth's confines causes many physiological changes that affect an astronaut's ...
Air travel these days feels more like a necessary chore than a luxury, and that becomes clearer with each flight. The seats are cramped, legroom is scarce, the drink cart makes a single appearance ...
The 17 wallpaper groups, with finite fundamental domains, are given by International notation, orbifold notation, and Coxeter notation, classified by the 5 Bravais lattices in the plane: square, oblique (parallelogrammatic), hexagonal (equilateral triangular), rectangular (centered rhombic), and rhombic (centered rectangular).
A space blanket (also known as a Mylar blanket, emergency blanket, first aid blanket, safety blanket, thermal blanket, weather blanket, heat sheet, foil blanket, or shock blanket) is an especially low-weight, low-bulk blanket made of heat-reflective thin plastic sheeting. They are used on the exterior surfaces of spacecraft for thermal control ...