[Date Prev][Date Next][Thread Prev][Thread Next] - [Date Index][Thread Index][Author Index]

Re: Columbia's safety margins misread, expert tells panel

On 26 Mar 2003, at 22:46, Bruce Bostwick wrote:

> On Wednesday, Mar 26, 2003, at 20:52 US/Central, Scott Avery WA6LIE 
> wrote:
> > From what I have seen, it appears clear that the foam most likely with 
> > some
> > heavy ice attached to it had an impact that might have been enough to 
> > create

As an experienced i put 2"X1" pieces of styrofoam into a water bowl (¼" of water) put the bowl in the 
freezer overnight and i try to separate ice from pieces of styrofoam the day after.

Results: due to the porous nature of styrofoam it bound firmly with ice makin it hard to separate. When  
ice is broken each pieces of strofoam where still attached to ¼" thick ice  making it not a piece of foam 
but a piece of ice. When throwing with enough force even a smal chunk of this composite material on a 
light bulb it breaks the bulb.

It is far from a scientific experience but convince me that ice bound firmly to foam, dont know type of foam 
on the external thank's but i can imagine at high speed these ice bits can hit structures quite hard. 

Luc Leblanc VE2DWE (AMSAT 33583)
Coordonnateur AMSAT pour le Québec
Quebec AMSAT coordinator
SITES WEB:http://www.sorel-tracy.qc.ca/~luclebla/
Sorel-Tracy QC.
J3P 5N6

Via the sarex mailing list at AMSAT.ORG courtesy of AMSAT-NA.
To unsubscribe, send "unsubscribe sarex" to Majordomo@amsat.org