Signs and symptoms. Eye floaters are suspended in the vitreous humour, the thick fluid or gel that fills the eye. The vitreous humour, or vitreous body, is a jelly-like, transparent substance that fills a majority of the eye. It lies within the vitreous chamber behind the lens, and is one of the four optical components of the eye.
Wind speed is a measurement of the speed of movement of the air, and is typically reported in miles per hour (mph) or kilometers per hour (kph). Reports for maritime and aeronautical operations may use those or knots (nautical miles per hour).
A truck in Key West, Florida is bombarded by wind and rain during a hurricane. Photograph by Mike Theiss, National Geographic Scientists have a new way to measure how fast the wind is blowing. That's because over the past decade, scientists have learned how to measure the speed of the wind at the ocean's surface by observing how much GPS signals are distorted when bouncing off the moving water waves.