Re: [Phys-l] How "Compressive" is Defined. (was tire q...)

[carmelo@pacific.net.sg]

Quoting Brian Whatcott <betwys1@sbcglobal.net>:
> I see that the list cannot quite agree on what constitutes compression.
>
> For any structure whatsoever, if forces from opposite sides are directed
>   inwards, the force is defined by engineers as compressive.
>   Sorry if that does not quite comport with a sophisticated physics
> reading of forces on particular structures       :-)

There is also no agreement among airlines whether bicycle's tyres  
should be deflated... Some fear that tyres may explode at low pressure  
and damage the aircraft fuselage.

For example, Qantas requires the tyres to be deflated. British Airways  
suggests "You may wish to deflate the tyres to reduce risk of damage".  
United Airlines' requirement is "The bicycle must be contained in a  
protective/durable case, bag or box." Northwest Airlines merely  
recommends bicycles to be placed in a bike box.


Alphonsus