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Old August 27th 05, 04:03 PM
U-Turn
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Default My helmet saved me, and broke


Just zis Guy, you know? wrote:
*I submit that on or about Sat, 27 Aug 2005 08:28:21 -0500, the
person
known to the court as "steveyo"
m made a statement
ist.com in Your
Honour's bundle) to the following effect:

The helmet's foam got compressed and cracked up the middle.


In other words, it failed. If it had done this on test it would
have
failed the test. You do know that polystyrene foam absorbs very
little energy in brittle failure, don't you?

It never fails to amaze me the number of people who hold up helmets
which have conspicuously failed to work as designed as some kind of
example of how wonderful they are!

Strangely, the number of "helmet saved my life" anecdotes vastly
outweighs the number of people who have ever suffered serious head
injury...

Guy
--
http://www.chapmancentral.co.uk

"To every complex problem there is a solution which is
simple, neat and wrong" - HL Mencken *

This helmet did its job by absorbing the impact and saving Steve from
serious injury, as it was designed to do. This type of helmet (assuming
it is the normal bicycle helmet) is designed to perform just as it did;
and is for one-impact use only. It is supposed to crack! Steve may be
able to get a free or discounted replacement through the shop where he
bought it or through the manufacturer, since some of them have programs
for just that purpose.


--
U-Turn - Cool water for the flame

Weep in the dojo... laugh on the battlefield.
'LiveWire Unicycles' (http://www.livewireunicycles.com)
'Strongest Coker Wheel in the World'
(http://www.unicyclist.com/gallery/albup39)
'29er Tire Study' (http://u-turn.unicyclist.com/29erTireStudy/)
'New York Unicycle Club' (http://www.newyorkunicycle.com)
-- Dave Stockton
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