Anemometer turbines usually requires a refresh rate of wind speed measurements of 3 Hz, easily achieved by sonic anemometers. Three-dimensional sonic anemometers are widely used to measure gas emissions and ecosystem fluxes using the eddy covariance method when used with fast-response infrared gas analyzers or laser-based analyzers. Two-dimensional wind sensors are of two types: Acoustic resonance anemometers are a more recent variant of sonic anemometer. The technology was invented by Dr Savvas Kapartis and patented in 2000. Whereas conventional sonic anemometers rely on time of flight measurement, acoustic resonance sensors use resonating acoustic (ultrasonic) waves within a small purpose-built cavity in
What Does the K Stand For? What Does the K Stand For? What Does the K Stand For? is a BBC Radio Four sitcom series based on the experiences of comedian Stephen K. Amos growing up as a teenager in south London in the 1980s. The broadcast of the first series began in November 2013; the third series commenced in January 2017. Reviewing Series 1, Episode 1 for "Radio Times", Tristram Fane Saunders found the show suited Amos "down to the ground; there's a touch of "Seinfeld" about "What Does the K Stand for?" in the way it flows from stand up into a deliciously awkward