Re: [PSUBS-MAILIST] Re: Blowing ballast (was: question about general design?)

[VBra676539@aol.com]

I might sign up for that one myself. Probably get roped into teaching, but it would be fun either way.
Vance

In a message dated Tue, 14 Aug 2001 12:43:55 PM Eastern Daylight Time, "Michael B. Holt" <mholt@richmond.edu> writes:

> VBra676539@aol.com wrote:
> > 
> > You might want to do some experiments about weight before making any
> > decisions along the "detachable gravel" line. You might be surprised just how
> > much volume it takes to equal a chunk of lead the size of a shoe box.
> 
> About the same time I came up with the gravel idea I was in a 
> junior high shop class.  We cast lead shot-puts.  We also cast
> aluminum shot-puts.  The difference in weight taught me about
> that sort of thing.
> 
> Speaking of shop class, I wonder if a school system might be
> interested in having kids work on a psub?  As a teaching
> method and as a marketing tool.
> 
> 
> 
> 
> Mike