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|    sci.physics.research    |    Current physics research. (Moderated)    |    17,516 messages    |
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|    Message 15,925 of 17,516    |
|    John Heath to millssc...@gmail.com    |
|    Re: The "apparent" forces    |
|    16 Nov 17 09:20:53    |
      From: heathjohn2@gmail.com              On Wednesday, November 15, 2017 at 4:50:43 PM UTC-5, millssc...@gmail.com       wrote:       >>       >> Douglas Eagleson mentioned       >>> oscillative action of the hand [...] airplanes       >>       >> This is getting bogged down in details. Your entire post was so focused on       >> minutiae and other physical situations that it is not feasible for me to       respond       >> to it. But you also seem to be confused about the reality of "centrifugal       force"       >> and the utter impossibility of it to "cause" anything.       >>       >> Tom Roberts       >       > I never said centrifugal force was a real field force. It is       > the outcome of a field's force usage. With an airplane its       > is the outcome of fuel air mixture combustion.       >       > A rotating shaft experiencing centrifugal force has a tension       > field in it. A true field state was the outcome of the       > centrifugal force. It can explode just like an energy       > storage gyro.       >       > I agree that it is fictitious in the sense that the force       > kinetics of a ladder in gravity is a construct of objects       > causing a condition of true forces.       >       > So when the condition is rotation, field forces are classified       > as centrifugal, not ladder.              There is another issue with centrifugal force that as not been       addressed. The force is outward from the center however when the string       is cut the direction is at 90degrees to the direction of the force where       the ball spinning when released will move in a straight line forward not       outward. The force felt was outward but when free the direction taken       was at 90 degrees to the force ? Not sure if my words have conveyed the       concern. The force on a string while spinning a ball is decidedly       outward. If the string is cut the direction of the ball is not outward       but a compromise of 90 degree shift of a straight direction from the       instant the string was cut. While a 90 degree shift in direction if the       force felt by the string was outward only ?              How could a vacuum know if the path was straight or curved without a       straight or curved reference to make this distinction. It gets back to       Ernst Mack with the question how does the universe know we are turning       to raise our arms VS a rotating universe with arms not rotating ? The       vacuum must be real in some sense connected to the universe to know how       to impose centripetal force. How else would it know that the ball is       rotating or the universe is rotating?              --- SoupGate-Win32 v1.05        * Origin: you cannot sedate... all the things you hate (1:229/2)    |
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