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Groups > sci.physics.relativity > #429446
| From | Thomas Heger <ttt_heg@web.de> |
|---|---|
| Newsgroups | sci.physics.relativity |
| Subject | Re: Meditations about the force |
| Date | 2017-08-19 20:19 +0200 |
| Message-ID | <evrdprFiqt3U1@mid.individual.net> (permalink) |
| References | <omv596$j45$1@gioia.aioe.org> <19521132.EfDdHjke4D@PointedEars.de> <on67dt$muq$1@gioia.aioe.org> <on998v$1ub$1@news.albasani.net> |
Am 19.08.2017 um 14:00 schrieb Paul B. Andersen: >> It is a controversial postulate. >> >> What is the apparent force? It's an illusion! The apparent force >> "seems" to be there but it is not there. >> >> And how does one distinguish a force from a force that is not there? >> You control the acceleration! >> >> If there is acceleration the force is real (F=ma) if there is no >> acceleration the force is apparent, it is an illusion, it is a ghost. >> >> A ball that rolls without friction seems to advance as though it were >> pushed by a force but there is no force, then? >> >> Then there is no force because the ball moves but does not accelerate! >> >> The inertia force is illusory (it is apparent) because it does not >> accelerate. >> >> Instead gravity accelerates and is therefore real and not apparent. >> >> Can you give me an example in which gravity is not associated with any >> acceleration? >> > > Acceleration is what an accelerometer measures. Well, acceleration is measured by an accelerometer. But WTH do you want to say with such a statement? You certainly see, that 'acceleration' cannot be explained/defined by using the term 'acceleration' - not even in combination with the term '-meter'. In case you want to know, what that 'really' is (gravity, acceleration and so forth), you cannot refer to the effect (acceleration) in the attempt to explain this phenomenon. This is similar to the question 'how long is a meter?'. You cannot say 'a meter is a distance of the length of one meter'. TH
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Meditations about the force Luigi Fortunati <fortunati.luigi@gmail.com> - 2017-08-15 17:50 +0200
Re: Meditations about the force Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-08-16 01:34 +0200
Re: Meditations about the force mlwozniak@wp.pl - 2017-08-15 23:34 -0700
Re: Meditations about the force Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-08-19 12:52 +0200
Re: Meditations about the force Séverin Thibault <ruud@bwiu.ei> - 2017-08-19 11:04 +0000
Re: Meditations about the force mlwozniak@wp.pl - 2017-08-19 10:43 -0700
Re: Meditations about the force Luigi Fortunati <fortunati.luigi@gmail.com> - 2017-08-18 10:10 +0200
Re: Meditations about the force mlwozniak@wp.pl - 2017-08-18 01:32 -0700
Re: Meditations about the force Dirk Van de moortel <dirkvandemoortel@hotspam.not> - 2017-08-18 15:06 +0200
Re: Meditations about the force Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-08-18 15:56 +0200
Re: Meditations about the force mlwozniak@wp.pl - 2017-08-18 07:06 -0700
Re: Meditations about the force "Paul B. Andersen" <relativity@paulba.no> - 2017-08-19 14:00 +0200
Re: Meditations about the force Luigi Fortunati <fortunati.luigi@gmail.com> - 2017-08-19 17:45 +0200
Re: Meditations about the force Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-08-19 21:28 +0200
Re: Meditations about the force mlwozniak@wp.pl - 2017-08-19 10:44 -0700
Re: Meditations about the force Thomas Heger <ttt_heg@web.de> - 2017-08-19 20:19 +0200
Re: Meditations about the force Séverin Thibault <ruud@bwiu.ei> - 2017-08-19 19:56 +0000
Re: Meditations about the force Séverin Thibault <ruud@bwiu.ei> - 2017-08-19 20:00 +0000
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