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 Kate Does the death of his love Juliet Burke (Elizabeth Mitchell) just hours earlier. In flash sideways to September 22, 2004, Kate assists a pregnant Claire Littleton (Emilie de Ravin) while on the run as a fugitive. The title alludes to the second season episode "What Kate Did". "What Kate Does" was watched by eleven million Americans and received mixed reviews by audiences and critics alike. In flash sideways, Kate Austen (Evangeline Lilly) flees LAX in a taxicab she has hijacked, in which a pregnant Claire Littleton (Emilie de Ravin) is a passenger. The cab driver (David H. Lawrence XVII) bails and