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KHAN

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Posts posted by KHAN

  1. Lessens the crashing against the outside of your head, yes. There's a second crash that takes place inside your skull when your head stops but your brain keeps going. I'm not sure any helmet will really help with that. But I am also not a scientist, and hope that they have figured something out here.

    You can't stop what happens inside the skull. But the "crumple zone" is designed to slow the speed of the impact thus lessening the concussive force. Kind of like dropping a bowling ball on concrete vs. dropping it on a pillow.

     

    Here's another example.

    Air-bags in motor vehicles

    Air bags are used in motor vehicles because they are able to reduce the effect of the force experienced by a person during an accident. Air bags extend the time required to stop the momentum of the driver and passenger. During a collision, the motion of the driver and passenger carries them towards the windshield. If they are stopped by a collision with the windshield, it would result in a large force exerted over a short time in order to bring them to a stop. If instead of hitting the windshield, the driver and passenger hit an air bag, then the time of the impact is increased. Increasing the time of the impact results in a decrease in the force.

    Therefore if t is increased, for a constant change in momentum, the force on the body is reduced.

  2. really?that does not make sense.. why wouldnt you hire people that you are familiar with? why would you hope that they hire people they no nothing about? OMG!

    Sorry Dwight. It was meant as sarcasm to the kneejerk reaction that hiring anyone you're familiar with is automatically cronyism. We're on the same page.

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