[ RadSafe ] Airplanes, cosmic rays, DU, tritium and similar absurdities

[Ellars, Charles]

A reprieve!

Thanks Otto.

Cheers,

Charlie

 

________________________________

From: Otto Raabe [mailto:ograabe at ucdavis.edu] 
Sent: Tuesday, December 19, 2006 11:50 AM
To: Ellars, Charles; Franz Schönhofer; RADSAFE
Subject: RE: [ RadSafe ] Airplanes, cosmic rays, DU, tritium and similar absurdities

 

At 06:38 AM 12/19/2006, Ellars, Charles wrote:



I raise my hand as saying the word "ballast" instead of "counterweight" ....

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According to my American Heritage Dictionary:

ballast: (n) 1. Any heavy material placed in the hold of a ship or the gondola of a balloon to enhance stability. 2. That which gives stability.

To me, ballast seems to be the correct term if the purpose is stability in an aircraft.

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counterweight (n) 1. A weight used as a counter balance.

To me this is a balance between two forces as over a pulley. It does not seem to exactly apply to ships, balloons, or aircraft.

Otto








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University of California
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E-Mail: ograabe at ucdavis.edu
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