Groups > sci.physics.relativity > #462193

Re: Why does gravity have to be transmitted through particles when gravity isn't a force in general relativity?

From	Odd Bodkin <bodkinodd@gmail.com>
Newsgroups	sci.physics.relativity
Subject	Re: Why does gravity have to be transmitted through particles when gravity isn't a force in general relativity?
Date	2018-06-22 16:12 +0000
Organization	Aioe.org NNTP Server
Message-ID	<pgj74f$o22$1@gioia.aioe.org> (permalink)
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Prokaryotic Caspase Homolog <prokaryotic.caspase.homolog@gmail.com> wrote:
> On Friday, June 22, 2018 at 8:59:37 AM UTC-5, kenseto wrote:
> 
>> Hey moron, why the CF force is not real when I can feel it? BTW what is
>> the reason for claiming that the CF force is not real and only the CP
>> force is real. BTW your fanatical religious explanation--that the
>> textbooks say so--is not acceptable.
> 
> If you take a look at Paul's demo, you will see that "centrifugal force"
> DOES NOT BEHAVE AT ALL LIKE A TRUE FORCE in directions other than dropping
> an object straight down.
> 
> https://paulba.no/Spaceship.html 
> 
> You may need to install the Java Runtime on your computer, if you don't
> have it already.
> https://java.com/en/download/
> 

And Ken, in plainer language that doesn’t involve skills you obviously
don’t have, the main lesson is that when you say you feel the centrifugal
force, that is in fact a trick of the mind and is wrong. This and other
examples are discussed in the basic textbooks that you have chosen not to
read. Here are similar examples, all discussed in basic books, and all
erroneous illusions. 

1. When you step on the gas in your car, you feel pressed back in your
seat. In fact there is no force pushing you back in your seat. It is your
mind mistakenly misinterpreting a force FORWARD on you. 

2. When your car makes a sudden left turn, you feel a sideways force
pushing you to the right. In fact there is no force pushing you to the
right. It is your mind mistakenly misinterpreting a mix of a force LEFT on
your posterior and a lack of any force left or right on your head. 

3. When you are in an elevator and press the Up button, you briefly feel
heavier as though gravity downward has increased. In fact you are not
heavier at all. It is your mind mistakenly misinterpreting an increase of a
force UPWARD exerted in your feet. 

4. When you are in a roller coaster and go over the top of a hill, you
briefly feel lighter as though gravity has decreased. In fact you are not
lighter at all. It is your mind mistakenly misinterpreting a decrease of a
force UPWARD on your posterior. 

5. When astronauts are on the Space Station, they feel weightless as though
there is no gravity at all. In fact, the force of gravity on the astronauts
is 95% of what it is on the surface of the earth. It is their minds
mistakenly misinterpreting a lack of customary forces UPWARD on their feet
if standing or on their posteriors if sitting. 

As I said, common sense and sensory experience is WRONG in accounting for
what’s going on. Furthermore, by reading books, you would learn in their
explanations WHY these common sensations are wrong and what the correct
physical accounting is. 

You choose not to read and instead to believe your mistaken sensory
impressions. That is NOT a good way to do physics or to think like a
physicist. 

Common experience sometimes is right, but it is also often wrong. Common
experience is not a reliable indicator of physical truth. 

-- 
Odd Bodkin — Maker of fine toys, tools, tables

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