"Mark" <[email hidden]> wrote in message news:[email hidden]...
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Johnny Sunset said:
* * Chas wrote:
>"Johnny Sunset" <[email hidden]> wrote in message >news:[email hidden]... > > >>Dan wrote: >> >> >>>Concrete isn't a good choice if you want a heavy bike. Pick steel
or
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>>>titanium. >>> >>>Steel 490 pcf >>>Titanium 280 pcf >>>Aluminum 170 pcf >>>Concrete 150 pcf >>>Autoclaved concrete 40 pcf >>>Wood 35 pcf >> >>Depleted uranium has a specific gravity of about 1185 pcf. >> >>-- >>Tom Sherman - Post Free or Die! > >DU has some drawbacks, especially if you ever want to have kids...
A polymer coating would stop the alpha radiation. DU is safe when covered with a barrier that stops alpha radiation (intact powder coating would likely be sufficient) and not ingested. The real
danger
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comes from DU when it burns and forms oxide particles that can be inhaled.
Guess I won't find a market for my new lead-shielded saddles, then.
Mark J.
Tungsten provides better radiation shielding and has a higher density than lead.
Chas.
Yes, but lead is more (heh heh) "supple" to better fit your anatomy!
"Mark" <[email hidden]> wrote in message news:[email hidden]...
Quoted message said:
* * Chas said:
"Mark" <[email hidden]> wrote in
message
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Quoted message said:
news:[email hidden]...
Quoted message said:
Johnny Sunset wrote:
>* * Chas wrote: > > >>"Johnny Sunset" <[email hidden]> wrote in message >>news:[email hidden]... >> >> >>>Dan wrote: >>> >>> >>>>Concrete isn't a good choice if you want a heavy bike. Pick
steel
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or
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>>>>titanium. >>>> >>>>Steel 490 pcf >>>>Titanium 280 pcf >>>>Aluminum 170 pcf >>>>Concrete 150 pcf >>>>Autoclaved concrete 40 pcf >>>>Wood 35 pcf >>> >>>Depleted uranium has a specific gravity of about 1185 pcf. >>> >>>-- >>>Tom Sherman - Post Free or Die! >> >>DU has some drawbacks, especially if you ever want to have kids... > > >A polymer coating would stop the alpha radiation. DU is safe when >covered with a barrier that stops alpha radiation (intact powder >coating would likely be sufficient) and not ingested. The real
danger
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>comes from DU when it burns and forms oxide particles that can be >inhaled.
Guess I won't find a market for my new lead-shielded saddles, then.
Mark J.
Tungsten provides better radiation shielding and has a higher
density
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Quoted message said:
than lead.
Chas.
Yes, but lead is more (heh heh) "supple" to better fit your anatomy!
