The Hunt For Dark Energy - Space's Deepest Secrets:
I've started recording the new series Space's deepest secrets and I just happened to watch episode 4 on the concept of dark energy. It was done this year and I was curious to know if it included any reasonably "current" information related to DE or DM theories. A number of comments in the video struck me as interesting:
One interesting part of the presentation was listening to Saul Perlmutter explain how "brightness" was used to determine that the universe was accelerating. Now of course ordinary "scattering" would tend to have the same basic effect in terms of decreased brightness/distance.
The other interesting part of the presentation was the "typical" misrepresentation of Edwin Hubble, and what he personally believed with respect to the photon redshift phenomenon. The presentation immediately *claimed* that Hubble proved the universe was expanding in spite of Hubble's own beliefs to the contrary. That's still the single biggest "misrepresentation" done in astronomy to this day, and it does the entire field of study a *huge* disservice. Later on in the presentation they seem to be looking for "alternatives" to their "interpretation" of evidence, when Hubble himself already gave them some very important alternatives to consider, which they either don't even know about anymore, or they simply ignore at their own scientific peril.
When the presentation delved into "dark matter" claims, they did not include any mention of the stellar miscounts with respect to earlier lensing studies. They didn't mention all that additional matter they found in 2012 that surrounds the galaxies and which rotates like "dark matter", and which apparently contains more mass than all the stars combined. That a pretty serious oversight IMO considering those stellar miscounts were substantial, and that plasma cloud was discovered over 4 years ago. There was also no mention of the spectacular string of lab failures of "dark matter" over the past decade either. What's up with burying their collective heads in the sand on that topic anyway?
Apparently from the Euclid consortium, astrophysics theory is on hold until 2020 when they "might" try to rule out "some" ideas, but again, not a single mention of Hubble's own preferred ideas.
I was somewhat pleased to seem them discuss the introduction of the Lambda term. Someone in the videos said that it was added to GR because GR otherwise predicts an "expanding" universe. That wasn't actually accurate. GR theory without a Lamba constant predicts *either* an expanding *or* a contracting universe. Einstein never tried to use it to get something for nothing as is the case with "dark energy". They did discuss the fact that dark energy does density defying energy tricks for breakfast, and they tried to use QM theory to support the idea, and then they turned a total blind eye to the fact that QM fails to come up with the right number, in fact it's off by 120 orders of magnitude!
You'd "think" that by 2016 they'd have mentioned that SN!A events were since shown to come in *at least* two different flavors, not one:
http://www.eurekalert.org/pub_releases/2015-04/uoa-aun041015.php
Not a peep in the presentation about any of that stuff.
I got the distinct impression while watching the Euclid team dine on a yacht that cosmology theory is pretty much "on hold" till at least 2020, and none of them want to talk about either of the two elephants in the room with respect to DE or DM. Ordinary matter, and problems with early baryonic mass estimates easily explains "dark matter", and simple scattering in plasma explains why distant objects appear less "bright" than expected.
Oy Vey.
I wasn't impressed with the presentation. They all noted that they were using placeholder terms for what amounts to human ignorance, and yet none of them even mentioned Hubble's *other* solution to the redshift phenomenon. Not once was that ever even mentioned.
Edit: Gah. I messed up the Title somehow. How do I edit the title of the thread?
I've started recording the new series Space's deepest secrets and I just happened to watch episode 4 on the concept of dark energy. It was done this year and I was curious to know if it included any reasonably "current" information related to DE or DM theories. A number of comments in the video struck me as interesting:
One interesting part of the presentation was listening to Saul Perlmutter explain how "brightness" was used to determine that the universe was accelerating. Now of course ordinary "scattering" would tend to have the same basic effect in terms of decreased brightness/distance.
The other interesting part of the presentation was the "typical" misrepresentation of Edwin Hubble, and what he personally believed with respect to the photon redshift phenomenon. The presentation immediately *claimed* that Hubble proved the universe was expanding in spite of Hubble's own beliefs to the contrary. That's still the single biggest "misrepresentation" done in astronomy to this day, and it does the entire field of study a *huge* disservice. Later on in the presentation they seem to be looking for "alternatives" to their "interpretation" of evidence, when Hubble himself already gave them some very important alternatives to consider, which they either don't even know about anymore, or they simply ignore at their own scientific peril.
When the presentation delved into "dark matter" claims, they did not include any mention of the stellar miscounts with respect to earlier lensing studies. They didn't mention all that additional matter they found in 2012 that surrounds the galaxies and which rotates like "dark matter", and which apparently contains more mass than all the stars combined. That a pretty serious oversight IMO considering those stellar miscounts were substantial, and that plasma cloud was discovered over 4 years ago. There was also no mention of the spectacular string of lab failures of "dark matter" over the past decade either. What's up with burying their collective heads in the sand on that topic anyway?
Apparently from the Euclid consortium, astrophysics theory is on hold until 2020 when they "might" try to rule out "some" ideas, but again, not a single mention of Hubble's own preferred ideas.
I was somewhat pleased to seem them discuss the introduction of the Lambda term. Someone in the videos said that it was added to GR because GR otherwise predicts an "expanding" universe. That wasn't actually accurate. GR theory without a Lamba constant predicts *either* an expanding *or* a contracting universe. Einstein never tried to use it to get something for nothing as is the case with "dark energy". They did discuss the fact that dark energy does density defying energy tricks for breakfast, and they tried to use QM theory to support the idea, and then they turned a total blind eye to the fact that QM fails to come up with the right number, in fact it's off by 120 orders of magnitude!
You'd "think" that by 2016 they'd have mentioned that SN!A events were since shown to come in *at least* two different flavors, not one:
http://www.eurekalert.org/pub_releases/2015-04/uoa-aun041015.php
Not a peep in the presentation about any of that stuff.
I got the distinct impression while watching the Euclid team dine on a yacht that cosmology theory is pretty much "on hold" till at least 2020, and none of them want to talk about either of the two elephants in the room with respect to DE or DM. Ordinary matter, and problems with early baryonic mass estimates easily explains "dark matter", and simple scattering in plasma explains why distant objects appear less "bright" than expected.
Oy Vey.
I wasn't impressed with the presentation. They all noted that they were using placeholder terms for what amounts to human ignorance, and yet none of them even mentioned Hubble's *other* solution to the redshift phenomenon. Not once was that ever even mentioned.
Edit: Gah. I messed up the Title somehow. How do I edit the title of the thread?
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