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2 天前 · Introduction. When a body is free to rotate around an axis, torque must be applied to change its angular momentum. The amount of torque needed to cause any given angular acceleration (the rate of change in angular velocity) is proportional to the moment of inertia of the body.
2024年5月2日 · This is a list of TCP and UDP port numbers used by protocols for operation of network applications. The Transmission Control Protocol (TCP) and the User Datagram Protocol (UDP) only need one port for duplex, bidirectional traffic. They usually use port numbers that match the services of the corresponding TCP or UDP implementation, if they exist.
2024年5月1日 · Definitions. Tenets. Common themes. Applications and adaptations. History. Criticism. Subfields. See also. Notes. References. Further reading. Critical race theory ( CRT) is an interdisciplinary academic field focused on the relationships between social conceptions of race and ethnicity, social and political laws, and media.
1 天前 · The Matrix is a 1999 science fiction action film written and directed by the Wachowskis. It is the first installment in the Matrix film series, starring Keanu Reeves, Laurence Fishburne, Carrie-Anne Moss, Hugo Weaving, and Joe Pantoliano, and depicts a dystopian future in which humanity is unknowingly trapped inside the Matrix, a simulated reality that intelligent machines have created to ...
2024年5月2日 · Structure of a typical L-alpha-amino acid in the "neutral" form Amino acids are organic compounds that contain both amino and carboxylic acid functional groups.[1] Although over 500 amino acids exist in nature, by far the most important are the 22 α-amino acids incorporated into proteins.[2] Only these 22 appear in the genetic code of life.[3 ...
1 天前 · Bibliography. Genghis Khan (born Temüjin; c. 1162 – 25 August 1227), also Chinggis Khan, [a] was the founder and first khan of the Mongol Empire, which he ruled from 1206 until his death in 1227; it later became the largest contiguous empire in history.
2 天前 · The X-Men are a superhero team appearing in American comic books published by Marvel Comics. Created by writer/editer Stan Lee and artist/co-plotter Jack Kirby, the team first appeared in The X-Men #1 (September 1963).[1] Although initially cancelled in 1970 due to low sales, following its 1975 revival and subsequent direction under writer ...
