On 2016-09-30 10:34, AMuzi wrote:
On 9/30/2016 11:39 AM, Joerg wrote:
On 2016-09-30 09:09, Frank Krygowski wrote:
On 9/30/2016 11:51 AM, Joerg wrote:
On 2016-09-30 02:23, John B. wrote:
On Fri, 30 Sep 2016 02:59:30 -0500, Gregory Sutter

wrote:

On 2016-09-30, John B wrote:

Or, perhaps to put in more graphic terms, the older
folks are brave
and stalwart individuals while the youngsters are
timid and
fainthearted. Which, of course, explains the modern
helmet fetish.

Trolling much?

https://www.youtube.com/watch?v=b9yL5usLFgY

I am amazed. Are you implying that your bicycle riding
is similar to
your you tube example.


https://www.youtube.com/watch?v=iV9_i9MEnMg

https://www.youtube.com/watch?v=ebd1z8m-AiA

There are hundreds of those "car crash" compilations on
YouTube.


Cars have cumple zones, belts, airbags and so on. Bikes
don't. You land on your noggin much easier than in the car.

If an injury can be avoided or reduced to a less
consequential one with reasonable means such as a helmet it
is smart to do so.


Silly me. I thought impact force was related to mass and velocity.


It's the deceleration that counts. More than 300 G on the noggin is
regarded as not likely survivable. Styrofoam may not be a glamorous
material because it is used in packaging but it does have good
properties when it comes to transferring impact energy into heat and
deformation. Which is why it is also used in the bumper absorber section
of many modern cars.

--
Regards, Joerg

http://www.analogconsultants.com/