Re: Dark matter/energy - is it real?

: "Shawn Wilson" <Ikonoqlast@xxxxxxx>
: Except that we could see that energy was disappearing. Dark matter claims
: that 90% of the universe is missing, yet we do not see any physical process
: missing in our experiments.

Of course there is. The physical process that causes the centripetal
acceleration we see but can't account for. It's missing. There has to
be one, else conservation of momentum etc is all wrong.

Your solution, your guess as to what this physical process is: "gravity
isn't the physical process we think it is". Which could have worked
for neutrinos also: the various physical processes that cause charged
particles to leave cloud tracks, or our calculation of the masses of
the particles involved, could simply have been wrong. Just like our
calculations as to what gravity predicts could be wrong. But "there's
some missing energy" was a good guess for neutrinos, and it's just as
justified now for gravity as it was then for weak nuclear decay.

Your solution is "throw the gravity out with the bathwater".
Most physicists take the "what's a simple change that can explain it
while still maintaining conservation and such" route. Which route
is correct here remains to be seen, but historically, starting over on
a theory from complete scratch has rarely been fruitful.

In using the kinetic theory of gases to calculate the speed of sound,
there was for quite some time a small discrepancy with the measured
speed. Eventually, this was discovered to be because of finite particle
size and inter-particle forces which weren't accounted for earlier.
It would have been a pity to throw out the kinetic theory with the sound
propogation bathwater, because it was basically pretty much correct.


Wayne Throop throopw@xxxxxxxxx http://sheol.org/throopw
.

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