Anemometer beam exits reflect, or backscatter, the light back into a detector, where it is measured relative to the original laser beam. When the particles are in great motion, they produce a Doppler shift for measuring wind speed in the laser light, which is used to calculate the speed of the particles, and therefore the air around the anemometer. Ultrasonic anemometers, first developed in the 1950s, use ultrasonic sound waves to measure wind velocity. They measure wind speed based on the time of flight of sonic pulses between pairs of transducers. Measurements from pairs of transducers can be combined to yield
What Kate Does doesn't quite know how to write a woman of action who's also in love … many of the show's Kate flashbacks are just plain silly … there have been a lot of pretty dire Kate episodes." Whitney Matheson of "USA Today" said that she "wanted to stab Kate with a hot poker" after watching "What Kate Does". Josh Holloway's supporting performance as a grieving Sawyer was commended by Carabott of IGN, who said that his acting on the dock as he cried and revealed to Kate that he was going to ask Juliet to marry him was "one of Josh