Flight from

Since the distance from the source to the detector is fixed, the time taken for an ion to traverse the analyzer in a straight line is proportional to its velocity and hence its mass (strictly, proportional to the square root of its m/z value). Thus each m/z value has its characteristic time of flight from the source to the detector. 

Metastable ion. An ion that is sufficiently excited to dissociate into a particular daughter ion and neutral species during the flight from the ion source to the detector. The dissociation is most readily observed when it takes place in one of the field-free regions in a mass spectrometer. 

The discovery of ozone holes over Antarctica in the mid-1980s was strong observational evidence to support the Rowland and Molina hypothesis. The atmosphere over the south pole is complex because of the long periods of total darkness and sunlight and the presence of a polar vortex and polar stratospheric clouds. However, researchers have found evidence to support the role of CIO in the rapid depletion of stratospheric ozone over the south pole. Figure 11-3 shows the profile of ozone and CIO measured at an altitude of 18 km on an aircraft flight from southern Chile toward the south pole on September 21, 1987. One month earlier the ozone levels were fairly uniform around 2 ppm (vol). 

Once, on a flight from London to Boston, there was a lady on the plane who was wearing some kind of deodorant with a scent that made me ill and gave me a horrendous headache. I felt so terrible that I could hardly move. She was sitting close to the front, and I couldn t even pass through that area to go to the bathroom because... 

Shoe Bomber — Richard C. Reid is currently awaiting trial in the U.S. for allegedly trying to set off a bomb hidden in his footwear during a flight from Paris to Miami on December 22, 2001. Two suspects from Pakistan and three from North Africa are also being detained for possible involvement. 

Ever since the Tower of Babel, humans have built, created, and sought beauty. Alas, the Tower makers were scattered, their language confounded, and the Tower abandoned. In this book, let s rebuild some of the lesser-known staircases of the Tower. After all, even after our expulsion from Eden and the flight from the Tower, God gives us back our creativity in Exodus 35. He gives it all to a man named Bezalel of the tribe of Judah, and Bezalel opens the gates for all humankind ... 

The same materials developed for aerospace planes may one day be applied to commercial travel. Hypersonic aircraft traveling at many times the speed of sound would reduce the time of a transpacific flight from America to Australia from 16 hours to a mere 3 hours. Whats more, the altitude of the aircraft would necessarily be so high that travelers would get a clear view of the curvature of Planet Earth. 

Figure 2. Comparison of simulated ozone (ppbv) and potential vorticity (pvu) with MOZAIC data for the flight from Frankfurt (Germany) to New York (USA) on March 15, 1996 (a) simulated horizontal ozone distribution at approximately 10 km altitude (03 in ppbv) solid line denotes the flight path (b) simulated vertical ozone distribution along the flight path solid line denotes the model tropopause, dashed line denotes the flight altitude (c) ECMWF (dotted) and modeled (solid line) potential vorticity along the flight path (d) observed (dotted) and modeled (solid line) ozone concentrations along the flight path.

Figure 3. As figure 2 but for the flight from Frankfurt (Germany) to New York (USA) on October 22, 1996.

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