FluxNet the gas in question. This mass flux makes the FluxNet project a valuable tool to scientists trying to monitor long term changes in trace gas flux within the atmosphere. Many different forms of anemometer exist on the current market. Unfortunately, the majority of the anemometers can only measure wind velocity in one plane and require a certain start-up wind speed. Sonic anemometers are solid state devices that measure the wind speed by passing ultrasonic sound waves through the moving air. As wind speed changes, so does the air density and when the density changes, so does the speed of sound.
2002 Oregon Ballot Measure 27 of the GMO market, donated $1.5 million to the effort against the measure. Overall, opponents spent $5.5 million, tying an Oregon spending record. 2002 Oregon Ballot Measure 27 Ballot Measure 27 of 2002 would have required the mandatory labelling of all genetically modified food sold in the U.S. state of Oregon. The measure was defeated in the November 5, 2002 general election with 371,851 votes in favor, 886,806 votes against. The measure was placed on the ballot as a result of initiative petition. Proponents of the measure argued that "Oregonians should have the right to know what they are eating."