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PSR B1919+21 is a pulsar with a period of 1.3373 seconds [4] and a pulse width of 0.04 seconds. Discovered by Jocelyn Bell Burnell on 28 November 1967, it is the first discovered radio pulsar. [5]
X.Org Server is the free and open-source implementation of the X Window System (X11) display server stewarded by the X.Org Foundation. Implementations of the client-side X Window System protocol exist in the form of X11 libraries , which serve as helpful APIs for communicating with the X server. [ 4 ]
Chandra X-ray Observatory, launched by NASA in 1999, is still operational as of 2024. An X-ray telescope (XRT) is a telescope that is designed to observe remote objects in the X-ray spectrum. X-rays are absorbed by the Earth's atmosphere, so instruments to detect X-rays must be taken to high altitude by balloons, sounding rockets, and satellites.
American History X: 1998 214 119 1.80 [83] The Original Kings of Comedy: 2000 213 115 1.85 [84] God Is a Bullet: 2023 213 156 1.37 [85] Hot Tub Time Machine: 2010 212 99 2.14 [86] Avengement: 2019 211 88 2.39 [87] Monument Ave. 1998 210 93 2.26 [88] Layer Cake: 2004 210 105 2.00 [89] All Eyez on Me: 2017 210 140 1.50 [90] Scarface: 1983 207 170 ...
Rounded notation of 2.39:1 also known as 2.40:1. All film releases may use 800 lines of the 1920×800 resolution resulting in the 2.40:1 aspect ratio of Blu-ray Disc. 2.55:1 = 51:20 Original aspect ratio of CinemaScope before optical sound was added to the film in 1954. This was also the aspect ratio of CinemaScope 55. 2. 592:1 = 70:27
The lines show the growth of the numbers of digits in the look-and-say sequences with starting points 23 (red), 1 (blue), 13 (violet), 312 (green).
1q21.1 duplication syndrome, also known as 1q21.1 microduplication, is an uncommon copy number variant associated with several congenital abnormalities, including developmental delay, dysmorphic traits, autism spectrum disorder, and congenital cardiac defects. [1]
1q21.1 deletion syndrome is a rare aberration of chromosome 1.A human cell has one pair of identical chromosomes on chromosome 1.With the 1q21.1 deletion syndrome, one chromosome of the pair is not complete, because a part of the sequence of the chromosome is missing.