1 1.0 is normal speed, 0 is stopped, numbers between 0 and 1.0 are slower playback, negative numbers are rewind and numbers higher than 1.0 are faster playback.  The forward and backward buttons to the right of Play speed are for moving videos frame by frame.
Slow Food Movement. An international movement begun by Carlo Petrini with a forerunner organisation, Arcigola, founded in 1986 to resist the opening of a McDonald's (fast food restaurant) near the Spanish Steps in Rome.
Science Main Index. When you swallow food, it doesn't just drop down into your stomach. Muscles contract in a wave-like motion to move the food along through the digestive tract. This muscle movement is called, peristalsis, or peristaltic waves.These peristaltic waves contract behind the food bolus pushing it along the digestive tract.In the small intestine, peristaltic waves not only move food along the intestine, but also mix the food chyme to help in the digestive process.his muscle movement is called, peristalsis, or peristaltic waves. These peristaltic waves contract behind the food bolus pushing it along the digestive tract. In the small intestine, peristaltic waves not only move food along the intestine, but also mix the food chyme to help in the digestive process.