[time-nuts] last page in april 2015 IEEE Spectrum

[Jim Lux]

An interesting look back: it's a copy of a Tracor ad showing someone 
carrying a portable Rb clock down the stairs of a PSA plane. Lots of 
history in that photo: no jetway, PSA, people wearing coat and tie on an 
airplane.  Even the street name for GTC, on Bellanca Av, redolent of 
long-gone airplane mfrs..  BTW, google street view shows a building that 
is probably where Tracor was.  (in among a bunch of giant parking 
structures, of course)

At the address is now Secom International - a leader in parking solutions.



http://spectrum.ieee.org/at-work/test-and-measurement/the-carryon-clock-atomic-time-you-can-take-with-you