Re: seruzawa supports big brother monitoring,using the wrong measure i.e. Speed does
No, it's the sudden deceleration at the end that kills. Whether you come to a Dead Stop at 35mph by face-firsting a wall, or the same at 135mph; you'll still be D-E-D either way. It's just a matter of how they get you off the wall - garden hose, or 3500psi pressure-washer...........
Nonsense, its how energy is transferred is the key.. i.e conservation of energy law
Nonsense, its the transfer of energy is the key. Remember Newton's law of conservation of energy. Energy cannot be destroyed and can only be transfered. i.e in this case the energy has to be transfered somewhere i.e smashing metal and flesh. Sudden deceleration by itself doesn't cause death and sudden acceleration doesn't cause it either. It's the way the way the energy is transferred. Theoretically seruzawa's mythical cruiser would superior brakes would decelerate as fast as hitting another car. Assuming you could stay on such cruiser would you die just cause of deceleration. Of course not cause the energy would be transfered to the brake pads of the seruzawa's superior mythical cruiser. But if you decelerated by hitting a car or wall you would see the energy transferred via crunching flesh, plastic and metal.
Re: Nonsense, its how energy is transferred is the key.. i.e conservation of energy l
"Assuming you could stay on such cruiser would you die just cause of deceleration."
Of course you can die just from deceleration.. decelerate too fast and your brain will slam into the inside of your skull breaking blood vessels - brake enough and bye bye.
This is why helmets are important they limit the deceleration force g's that act on your head giving it a bit more time to decelerate as the padding smashes. It's primarly not to protect your skull from cracking although I'm sure that's also a possiblity.
Only 51% of riders wear helmets? This seems unrealistic to me. Yeah, I see people riding without helmets sometimes (I live in a state where helmet use is not mandatory for all riders). I followed the link to the NHTSA survey data, and it states that the percentages are 68% in states where helmets are mandated, and 37% in the other states. These percentages reflect DOT approved lids--novelty helmets did not count toward the total. Still, just based on my observations, I feel like the percentages they stated are low. Even in my area, where riders have a choice, I'm thinking well over 70% of riders are wearing helmets. Can I get some of your opinions on that?
Yes it is possible to have damages but it is caused by transfer of energy not by acceleration by itself. i.e the energy transfered by the brain to the skull, etc. Come on guys my point is that velocity is a key factor in kinetic energy of a crash. i.e the square of the velocity means a change in velocity can change the energy more dramatically than mass. i.e. compare derivatives (calculus) for velocity vs mass. All you have to do is graph the energy on a graph for given mass by changing the velocity. Get your graph paper out or use excel .
I live in northern Illinois near the Wisconsin border and I would say that almost no Harley riders wear helmets in this area (No helmet law) and most cruiser riders in general don't wear them either. Probably more than half of the sportbike riders in this area wear them but there a large number that don't.