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
Angelo (Measure for Measure) the relationship between justice and mercy. There is much debate about what Shakespeare intended this character to portray. Critics disagree about whether Angelo is a good man who has fallen because of power and sexual temptation or a malicious man from the start. Regardless, he is the personification of justice in the play. When juxtaposed against Isabella (mercy), Angelo represents adherence to the law and punishment for sin, though he does not always adhere to the strict justice he enforces. Once Angelo meets Isabella he is forced to consider himself in a different light and acknowledge his shortcomings. "Measure for