Mailing List Archive

Mailing List: techdiver

Message Display

To: A.APPLEYARD@fs*.mt*.um*.ac*.uk* ("A.Appleyard")
Subject: Re: weight belts
From: CONWAYJD@ef*.ef*.na*.na*.mi* (Conway, John)
Date: 27 Sep 95 11:55:32 EDT
Cc: techdiver@terra.net

For the answer to your second question, I will let the NRA people help 
with the first,

Sand is predominately composed of the mineral quartz, and quartz or SiO2 
has a specific gravity of 2.65,   Lead has a specific gravity of 7.59, On 
this basis it would take 3 times as much sand as lead.



Based on this fact and a little math, Lets say you wear a 20 lb weight 
belt. 20 lbs of lead occuppies approx 74 cubic inches (measure those 10 
lb'ers on the floor to double check the math), 20 lbs of sand would 
occupy aprox 210 cubic inches



WOW!, and yes the underlying assumption is that sand and lead are only 
composed of SiO2 and PbS only respectively, impurities are always present 
that can add or subtract a little. This also doesnt take into account 
added space of the material due to size of the individual particles and 
packing of the particles



Short answer - it would take  3 times as much sand as lead

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]