Jefferies Tubes are named in honor of Matt Jefferies, art director of 
the first Star Trek series and the original designer of the starship Enterprise. 
The term is a carryover from the original series.

	Dick Brownfield, Star Trek special mechanical effects whiz whose 
work on the Enterprise dates back as far as Star TrekÕs first pilot episode in 
1964, tells us that some of the conduits and pipes seen on the original 
Enterprise sets were labeled with the term GNDN. Dick tells us that this was 
a joke with him and set decorator John Dwyer (another veteran of both 
versions of Star Trek) to inform the discerning starship crew member that a 
dummy pipe ÒGoes Nowhere and Does Nothing.Ó  Æ