Accessory muscles are isointense to skeletal muscle on all pulse sequences and typically attach by muscular or tendinous insertions. Accessory muscles around the knee include the 3 rd head of the gastrocnemius, the accessory plantaris, the accessory popliteus, and the tensor fasciae suralis muscle.
Napster was founded by Shawn Fanning, John Fanning, and Sean Parker. Initially, Napster was envisioned as an independent peer-to-peer file sharing service by Shawn Fanning. The service operated between June 1999 and July 2001.
James Spangler. James Spangler invented a portable electric vacuum cleaner-the Hoover Vacuum Cleaner. In 1907, James Spangler, a janitor working in a Canton, Ohio department store, deduced that the carpet sweeper he used on the job was the source of his cough.illiam H. Hoover was so impressed with the vacuum cleaner that his wife bought that Hoover bought into Spangler's business and patents, becoming the president of the Electric Suction Sweeper Company. William Hoover renamed the company the Hoover Company in 1922.