From: jdawe on 20 Jan 2010 03:24 On Jan 20, 10:10 am, Matthew Lybanon <lyba...(a)earthlink.net> wrote: > In article > <4090a6f6-010f-436e-8867-91e4c84c0...(a)a15g2000yqm.googlegroups.com>, > > jdawe <mrjd...(a)gmail.com> wrote: > > When energy\matter is at rest it generates push force > > What you say seems to be meaningless. Maybe you could express the idea > in a different way. Can you give an example of this "push force?" Humans generate push\pull force. Here's an experiment you can perform to help differentiate between the two forces. For this experiment we will use the push up exercise ( or sometimes called press ups ) . Locate some solid matter like a nice slab of concrete. Do a 'push' up. That is lie down on the concrete then push up against the pull of gravity. I'm guessing you successfully completed that push up. Now, locate some fluid matter like a swimming pool or maybe the ocean. Do a push up on the fluid matter. No doubt you had some difficulty completing the exercise. The problem here is not only have you got the pull of gravity coming down on you but also the pull of fluid matter rendering your own push force useless. This is why all swimming strokes use pull force not push force. Uncle Al made a good point about fish. The vast majority of fish, if not all, generate only pull force. Because they can only generate pull force they are useless on dry land. Humans don't have it quite so bad. We generate both push\pull nearly equally. So we can generally move about on solid matter and fluid matter quite well. But we are best suited to solid matter like dry land because we have the push of solid matter to amplify our own push force and the pull of gravity coming down on us to amplify our own pull force. Any more questions just ask. -Josh.
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