Facebook F8 Facebook F8 Facebook F8 (pronounced ""eff eight"") is a mostly-annual conference held by Facebook, intended for developers and entrepreneurs who build products and services around the website. It is hosted in the San Francisco Bay Area, California, previously in San Francisco (until 2016) and now in San Jose, in Silicon Valley. Previous events have started with a keynote speech by Facebook founder Mark Zuckerberg, followed by various breakout sessions concentrating on specific topics. Facebook has often introduced new features, and made new announcements, at the conference. The "F8" name comes from Facebook's tradition of 8 hour hackathons. The scheduling of
F8 (classification) Council (MRC) measurements, muscle strength is tested using the bench press for a variety of spinal cord related injuries with a muscle being assessed on a scale of 0 to 5. A 0 is for no muscle contraction. A 1 is for a flicker or trace of contraction in a muscle. A 2 is for active movement in a muscle with gravity eliminated. A 3 is for movement against gravity. A 4 is for active movement against gravity with some resistance. A 5 is for normal muscle movement. F8 (classification) F8, also SP8, is a standing wheelchair sport classification open