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-   -   A few interesting Science videos... (http://www.trekbbs.com/showthread.php?t=209434)

Vito Corleone April 15 2013 12:41 AM

A few interesting Science videos...
 
The ISS detects some Dark Matter in Cosmic Rays...

http://www.youtube.com/watch?v=54AxeJFlVgI

A video that explains how Parallax and Redshifting are used to measure interstellar distances... Always wondered how that worked...

http://vimeo.com/41434123

not April 17 2013 05:44 PM

Re: A few interesting Science videos...
 
I like that it was clear enough for the non-science person AKA, me

farmkid April 17 2013 09:35 PM

Re: A few interesting Science videos...
 
Here's another interesting science video for those with an interest in biology:

Metryq April 18 2013 12:35 PM

Re: A few interesting Science videos...
 
Quote:

Vito Corleone wrote: (Post 7944643)
The ISS detects some Dark Matter in Cosmic Rays...

Dark matter is an ad hoc non-explanation invented to gloss over the failing of gravity to account for the shape and movement of galaxies. One might as well call it "magic matter." It is non-baryonic and detectable only by its gravitational effects—at least that's the hypothesis. No one has detected any yet. And antimatter has been generated in labs without the help of dark matter. A proper scientist would revisit the original premise that gravity alone drives the universe.

Pulsars are another ad hoc detour into fantasyland based on the premise that a rotating body is sweeping us with its radio beams. Some pulsars have frequencies so high that no known matter could stand the centrifugal force...so naturally someone invented an "unknown" type of matter that experience tells us should not be able to exist. That is, bare neutrons "evaporate" in about 14 minutes, and fly apart when forced into proximity with other neutrons. So neutronium, or neutron stars (the alleged core of a pulsar) cannot exist. A good scientist would revisit the original assumption that pulsar frequencies are due to rotation.

And supernovas "don't work." Computer models are not reality, as one can program anything to happen. Yet repeated attempts to model stars cannot produce a nova explosion. At best, the stars fizzle out. Ergo, there is something wrong with the mainstream astrophysical explanation of how stars work.

Quote:

A video that explains how Parallax and Redshifting are used to measure interstellar distances...
The Doppler effect is only one of several mechanisms for creating a redshift in Fraunhofer lines. (Yet even Wikipedia's definition of redshift begins with a statement about the Doppler effect.) There is abundant work throwing the "Hubble constant" into question, but you won't hear about it from pop science sources.

Believing is seeing.

not April 18 2013 02:45 PM

Re: A few interesting Science videos...
 
Quote:

Metryq wrote: (Post 7962973)
Quote:

Vito Corleone wrote: (Post 7944643)
The ISS detects some Dark Matter in Cosmic Rays...

Dark matter is an ad hoc non-explanation invented to gloss over... A proper scientist would revisit the original premise that gravity alone drives the universe.

Pulsars are another ad hoc detour into fantasyland ...A good scientist would revisit the original assumption that pulsar frequencies are due to rotation.

And supernovas "don't work." ... Ergo, there is something wrong with the mainstream astrophysical explanation of how stars work.

...

The Doppler effect is only one of several mechanisms ... but you won't hear about it from pop science sources.

Believing is seeing.

So what your saying is that my ignorance is genius ;-0

Metryq April 19 2013 11:03 PM

Re: A few interesting Science videos...
 
Quote:

not wrote: (Post 7963324)
So what your saying is that my ignorance is genius ;-0

Not exactly. Curiosity and a wonder of the natural world are healthy. But "authority" figures often present speculation as indisputable fact, and that's not science. Without a PhD, one may not have the tools to contest the opinions of those who have the PhDs, but one can still be skeptical, or even call "BS" when a PhD tries to pull the sheepskin over our eyes.

"It's too esoteric for you to understand. You just have to take my word for it."

Crazy Eddie April 20 2013 05:17 AM

Re: A few interesting Science videos...
 
Quote:

Vito Corleone wrote: (Post 7944643)
The ISS detects some Dark Matter in Cosmic Rays...

http://www.youtube.com/watch?v=54AxeJFlVgI

No, it detects an anomalously high positron count, which may or may not have anything to do with a hypothetical particle interaction which may or may not have anything to do with dark matter.

Of course, six months from now we'll be reading articles in Scientific American about how the AMS test actually confirmed the presence of dark matter and how new research based on the AMS data gives us a better understanding of how dark matter interacts with galaxies or something.

In short, dark matter is bullshit, and every article claiming to have confirmed it, studied it or examined any concrete facet OF it is, in fact, presenting bullshit based on an assumption based on another assumption based on an hypothesis for which no evidence exists.

Vito Corleone April 28 2013 09:30 PM

Re: A few interesting Science videos...
 
All this hate for the Dark Matter video! :vulcan: It was just a video that I thought would be interesting...

Metryq April 30 2013 12:19 PM

Re: A few interesting Science videos...
 
Quote:

Vito Corleone wrote: (Post 8015578)
All this hate for the Dark Matter video! :vulcan: It was just a video that I thought would be interesting...

So long as you realize we are not attacking you. Much of the astrophysical stuff presented in pop science programs and literature is not really science—black holes and dark matter are the poster children for a menagerie of "virtual" concepts. But science is supposed to be the search for reality, not the invention of it.

JanewayRulz! May 4 2013 01:36 PM

Re: A few interesting Science videos...
 
I don't know if this counts as a "science" video... but it;s pretty kewl.

http://www.youtube.com/watch?v=oSCX78-8-q0

I like the comment from one of the makers, that if it gets a 1000 kids to go into science instead of going into the law, it was worth the effort.


Metryq May 5 2013 11:43 AM

Re: A few interesting Science videos...
 
They're not ready to take on Pixar, but since the IBM researchers are approaching absolute zero to keep their atoms in place, I'd say this is very cool.

publiusr May 10 2013 11:01 PM

Re: A few interesting Science videos...
 
The protoplaser seems real now
http://www.dailymail.co.uk/sciencete...tech^headlines

space weapons
http://forum.nasaspaceflight.com/ind...topic=31762.60
http://www.thespacereview.com/article/2289/1

Here is one for Ripley:
http://www.dailymail.co.uk/sciencete...tech^headlines

It seems there are two suns 150 ly out--in the Hyades no less

Along the shore the cloud waves break, The twin suns sink behind the lake, The shadows lengthen...In Carcosa....Strange is the night where black stars rise, And strange moons circle through the skies, But stranger still is--Lost Carcosa.

Songs that the Hyades shall sing, Where flap the tatters of the King, Must die unheard in--Dim Carcosa.

Song of my soul, my voice is dead, Die thou, unsung, as tears unshed
Shall dry and die in Lost Carcosa.

—"Cassilda's Song" in The King in Yellow Act 1, Scene 2

Gary7 May 21 2013 02:55 AM

Re: A few interesting Science videos...
 
When galaxies collide (simulation, mixed with actual photos):



Pretty wild.


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