Mailing List Archive Mailing List Archive
Dont bother with an exact box. Even us stupid PADI instructors know that is the hard way to do it. Build any box that is big enough and put an overflow pipe that leads to a bucket (5 gal white plastic). Fill the box up to the overflow, weigh the empty plastic bucket, stuff the tank in the box, catch the water in the bucket, weigh the bucket again, subtract, etc. Even a contractor should be able to do it right. Archemedes figured it out a long time ago and named a Northern California town about it. In message <199710040405.VAA08769@gl*.oz*.ne*> Jammer Six writes: > Here's the plan. > > A old friend of mine has just become certified, and just today spent a > huge sum of money on gear. -snip- > The dive store told him about what they can get, and around we went. > > So what we're going to do, is we're going to build a box. > > Since I'm a carpenter, and General, we're going to build an EXACT box, a > box that is precise in it's dimensions, and we're going to sink a variety > of tanks in it. > > We're going to stuff a tank into the box, cover it with water, mark the > level, jerk the tank out, mark the new level, and then we will have exact > dimensions for the displacement of that tank, and can calculate the > weight of sea water it displaces. > > Then we're going to weigh it empty, weigh it full, and arrive a what we > think are the REAL bouyancy figures for that tank. > > This arises because we've heard conflicting numbers on different tanks, > and now don't believe anyone. -snip- > Does anyone see any holes in our plans? > Comments? Flames? Complaints? > > I'll make another post sometime this weekend with the results, and then > I'll dedicate the rest of my life to making the lives of equipment > salesmen miserable with the TRUTH. > > Unless I can get a spot on the Vision, which is a bigger boat... > > --------- > "Huh?" > --Jammer, 1992 > --------- > > -- > Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. > Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'. ------------- Dick Barker dickb@es*.co* http://www.eskimo.com/~dickb/ Are you qualified to join OFDA? http://www.eskimo.com/~dickb/ofda.html San Juan Isl Dive Charter? http://www.eskimo.com/~dickb/starfire.html -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
Navigate by Author:
[Previous]
[Next]
[Author Search Index]
Navigate by Subject:
[Previous]
[Next]
[Subject Search Index]
[Send Reply] [Send Message with New Topic]
[Search Selection] [Mailing List Home] [Home]