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The nanometre ( SI symbol: nm) is a unit of length in the metric system equal to 10−9 metres ( 1 1 000 000 000 m = 0.000 000 001 m ). To help compare different orders of magnitude, this section lists lengths between 10 −9 and 10 −8 m (1 nm and 10 nm). 1 nm – diameter of a carbon nanotube.
Retrieved 31 July 2012. ^ "Game of the Year 2011: Giant Bomb's Top 10". Giant Bomb. 30 December 2011. Archived from the original on 30 July 2012. Retrieved 31 July 2012. ^ "Giant Bomb's 2015 Game of the Year Awards: Day Five Text Recap". Giant Bomb. 1 January 2016. Archived from the original on 22 January 2016.
This is a list of exoplanets within the circumstellar habitable zone that are under 10 Earth masses and smaller than 2.5 Earth radii, and thus have a chance of being rocky. [ 3 ] [ 1 ] Note that inclusion on this list does not guarantee habitability, and in particular the larger planets are more unlikely to have a rocky composition. [ 4 ]
John McAfee. John David McAfee ( / ˈmækəfiː / MAK-ə-fee; [ 3][ 4] 18 September 1945 – 23 June 2021) was a British-American computer programmer, businessman, and two-time presidential candidate who unsuccessfully sought the Libertarian Party nomination for president of the United States in 2016 and in 2020. In 1987, he wrote the first ...
Image mosaic by Mariner 10, 1974. Mercury's apparent magnitude is calculated to vary between −2.48 (brighter than Sirius) around superior conjunction and +7.25 (below the limit of naked-eye visibility) around inferior conjunction. [16] The mean apparent magnitude is 0.23 while the standard deviation of 1.78 is the largest of any planet.
Planets beyond Neptune. Following the discovery of the planet Neptune in 1846, there was considerable speculation that another planet might exist beyond its orbit. The search began in the mid-19th century and continued at the start of the 20th with Percival Lowell 's quest for Planet X. Lowell proposed the Planet X hypothesis to explain ...
Eris ( minor-planet designation: 136199 Eris) is the most massive and second-largest known dwarf planet in the Solar System. [ 22] It is a trans-Neptunian object (TNO) in the scattered disk and has a high- eccentricity orbit. Eris was discovered in January 2005 by a Palomar Observatory –based team led by Mike Brown and verified later that year.
The First Battle of Bull Run, called the Battle of First Manassas [1] by Confederate forces, was the first major battle of the American Civil War. The battle was fought on July 21, 1861, in Prince William County, Virginia , just north of what is now the city of Manassas and about thirty miles west-southwest of Washington, D.C.