On 5/24/2012 4:50 PM, Ophelia wrote:
>
> Good grief!!!!!!!!!! You are lucky to be alive!!
>
And
On 5/24/2012 8:36 PM, Boron Elgar wrote:
>
> Good heavens, Dick, I am glad you and your wife emerged unscathed from
> that. What a helluva way to end a vacation.
>
> Boron
Well, I would say I'm lucky to have been born when I was rather than
thirty or forty years earlier. As those of you who are my age should
recall, before the late 1960s, nearly all cars consisted of a sheet
metal body bolted to a frame made of I-beams. Even the unibody cars were
designed on the same model, with box beams stamped into the floor of the
welded unibody.
The typical scenario was that you hammered out the dent in the fender,
applied bond-o, sanded and painted, replaced the windshield, cleaned the
blood off the steering wheel and dashboard, and sold the car to pay for
the driver's funeral.
But the designers of the 1969 Ford Torino had a better idea. They put an
S-curve into the front part of the stamped box beam. The thinking of the
engineers was that in a front end collision, the S-curves would
compress, accordion-like, and the energy of the collision would largely
be converted into the displacement of metal, rather than being
transmitted elastically to the bones of the driver and passengers.
Suddenly we entered a new era in which cars collapsed and drivers walked
away. Instead of selling the car to pay for the funeral, we could total
the car and cut down on the carnage. My parents would see a smashed car
on a wrecker and assume someone had died in the accident, because in
their experience, that much damage had meant that. I would see the same
smashed car and think how lucky the driver had been to be driving a
modern car.
Combine that with vastly improved guardrail designs that apply a similar
principle (absorb energy rather than resist damage), better roadway
design, three-point seat belts, airbags, and hundreds of other
engineered safety improvements. The net result is that traffic
fatalities per 100 million vehicle miles is now at the lowest it has
ever been (records have been kept since 1921).
So I often ask people, "Have you thanked an engineer today?"
Dick