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 Posted:   Sep 23, 2015 - 5:30 PM   
 By:   Solium   (Member)

If Earth was the size of a marble, Neptune would be seven miles away.

http://www.space.com/30610-scale-of-solar-system-amazing-video.html

 
 Posted:   Sep 23, 2015 - 6:00 PM   
 By:   ZapBrannigan   (Member)

If Earth was the size of a marble, Neptune would be seven miles away.

http://www.space.com/30610-scale-of-solar-system-amazing-video.html


It's a good idea, but I couldn't read any of the numbers because this version of the video is so low-res. It's way below SD and very blurry.

 
 Posted:   Sep 23, 2015 - 7:14 PM   
 By:   Solium   (Member)

Agreed. Cool idea. Wish the video was better quality.

 
 Posted:   Sep 24, 2015 - 2:49 PM   
 By:   Metryq   (Member)

The HD version on YouTube is much cleaner, of course.

And while this is a fascinating art project, it would be much easier to do with a 3D model. There are many virtual planetariums available for almost any personal computing device—all completely to scale, including the orbital inclinations. Celestia is one example. http://www.shatters.net/celestia/download.html

I think a much more potent animation is "Riding Light," which starts inside the Sun and runs to just beyond the orbit of Jupiter at the speed of light. Yet the animation runs 45 minutes.
https://www.youtube.com/watch?v=1AAU_btBN7s

(For those using QuickTime Player, both 7 and X, although X will provide much better performance, the J-K-L keys run forward and backward at varying speed. K for stop. Press L repeatedly for faster forward, J for faster reverse.)

 
 Posted:   Sep 24, 2015 - 3:44 PM   
 By:   Justin Boggan   (Member)

I cant' find the exact video I wanted to link to, but you know how the sun dwarfs Earth -- massively dwarfs Earth? Well, our sun is actually incredibly small. Smaller than you might even know:

https://www.youtube.com/watch?v=HEheh1BH34Q

 
 Posted:   Sep 24, 2015 - 4:00 PM   
 By:   Solium   (Member)

Wow, lots of cool videos. Thxs guys. smile

 
 Posted:   Sep 24, 2015 - 4:10 PM   
 By:   Octoberman   (Member)

I cant' find the exact video I wanted to link to, but you know how the sun dwarfs Earth -- massively dwarfs Earth? Well, our sun is actually incredibly small. Smaller than you might even know:
https://www.youtube.com/watch?v=HEheh1BH34Q



The music to this one put a big smile on my face.

 
 Posted:   Sep 25, 2015 - 5:03 PM   
 By:   Solium   (Member)

I cant' find the exact video I wanted to link to, but you know how the sun dwarfs Earth -- massively dwarfs Earth? Well, our sun is actually incredibly small. Smaller than you might even know:

https://www.youtube.com/watch?v=HEheh1BH34Q


I think the Sun is an average size star, but yeah there's stars the size of our own solar system. It's mind boggling. I don't understand how physics allow something that big to exist.

 
 
 Posted:   Sep 26, 2015 - 8:33 AM   
 By:   TomD   (Member)

I cant' find the exact video I wanted to link to, but you know how the sun dwarfs Earth -- massively dwarfs Earth? Well, our sun is actually incredibly small. Smaller than you might even know:
https://www.youtube.com/watch?v=HEheh1BH34Q



The music to this one put a big smile on my face.


I was expecting to hear Elmer Bernstein, since he wrote the music for the progenitor of these films about scale, Powers of Ten:

https://www.youtube.com/watch?v=0fKBhvDjuy0

 
 Posted:   Sep 27, 2015 - 7:56 PM   
 By:   Metryq   (Member)

I think the Sun is an average size star, but yeah there's stars the size of our own solar system. It's mind boggling. I don't understand how physics allow something that big to exist.

Yet mainstream astrophysics also posits black holes, neutron stars, warped space, a universal speed-of-light limit, and a universe based on gravity, the weakest of the four fundamental forces. I think it's mind boggling that so many have accepted these fantasies for so long.

 
 Posted:   Sep 30, 2015 - 12:32 PM   
 By:   Grecchus   (Member)

I think the Sun is an average size star, but yeah there's stars the size of our own solar system. It's mind boggling. I don't understand how physics allow something that big to exist.

Yet mainstream astrophysics also posits black holes, neutron stars, warped space, a universal speed-of-light limit, and a universe based on gravity, the weakest of the four fundamental forces. I think it's mind boggling that so many have accepted these fantasies for so long.


More like a universe based on dark matter.

I'm not so sure gravity is the weakest of the four fundamental forces. Every mass connects with every other mass even over relativistic time and distance. The strong force is bounded within the confines of the atomic nucleus. Gravity, on the other hand appears to be unbounded outside the confines of the nucleus. What is the relationship between these two forces?

 
 Posted:   Oct 1, 2015 - 5:22 PM   
 By:   Metryq   (Member)

I'm not so sure gravity is the weakest of the four fundamental forces.

http://scienceworld.wolfram.com/physics/FundamentalForces.html

 
 Posted:   Oct 2, 2015 - 5:45 AM   
 By:   Jehannum   (Member)

I'm not so sure gravity is the weakest of the four fundamental forces.

http://scienceworld.wolfram.com/physics/FundamentalForces.html


It's pretty simplistic pop science to say gravity is the weakest fundamental force.

The gravity of a black hole is greater than the magnetic force of a kid's magnet. A tonne of feathers weighs more than a gram of lead. Garry Kasparov is a better chess player than Bert Weedon was a guitarist. If an ant was the size of a man it could piss higher than a skyscraper. King size Mars bars make ideal fun size Mars bars for giants.

 
 Posted:   Oct 2, 2015 - 4:25 PM   
 By:   Metryq   (Member)

It's pretty simplistic pop science to say gravity is the weakest fundamental force.

The gravity of a black hole is greater than the magnetic force of a kid's magnet.


Black holes are completely theoretical, while "kid's magnets" have been tested in the lab.

I know—you hear about black holes all the time. They proliferate like rabbits and come in all sizes from microscopic to super-ultra-massive varieties. We are told that every galaxy has one at the center, but detailed maps of the Milky Way's center show no indication of gravitational lensing or other predicted effects.

What about the gamma rays, x-rays and other emissions? Ask any bench tech who's worked on CRT televisions and other high voltage electronics how easy it is to irradiate yourself if you don't know what you're doing.

What about observed stars in tight orbits around an "invisible" companion? There are mundane explanations for that, too. Sure, there's lots of observational evidence, but none of it exclusively pointing to black holes. Terrestrial lightning puts out x-rays, gamma rays, and even antimatter. Black holes are a mathematical model that is internally inconsistent. (People who understand the math say this.)

Now tell me about neutron stars.

 
 Posted:   Oct 3, 2015 - 4:07 PM   
 By:   Jehannum   (Member)


What about the gamma rays, x-rays and other emissions? Ask any bench tech who's worked on CRT televisions and other high voltage electronics how easy it is to irradiate yourself if you don't know what you're doing.

What about observed stars in tight orbits around an "invisible" companion? There are mundane explanations for that, too. Sure, there's lots of observational evidence, but none of it exclusively pointing to black holes. Terrestrial lightning puts out x-rays, gamma rays, and even antimatter. Black holes are a mathematical model that is internally inconsistent. (People who understand the math say this.)

Now tell me about neutron stars.


Thanks to various TV programmes from the 1970s we know a lot about the effects of gamma rays on the human body, thank you very much.

You're the first person I've known who doesn't believe in gravity.

Or do you think gravity is some kind of conspiracy theory. Perhaps Isaac Newton didn't exist. No one could be that smart, could they? He's obviously a 20th century invention.

Neutron stars are fine, providing you don't reverse the polarity of their flow.

Black holes are internally inconsistent? How do they know, these people who understand the "math"? They been inside one, have they? These are the guys who say bees can't fly, remember. Especially that Richard Hawkins guy.

 
 Posted:   Oct 3, 2015 - 6:44 PM   
 By:   Metryq   (Member)

You're the first person I've known who doesn't believe in gravity.
...

Especially that Richard Hawkins guy.


The 17th century admiral? Or perhaps you mean Stephen Hawking? (He's such a hero you couldn't even get his name correct?) The TV comment made me think you were attempting humor, but the rest of the post seems disjointed. And either you have a problem with reading comprehension, or you're actually offended by what I wrote.

I never said I did not "believe" in gravity. I said it was the weakest of the four fundamental forces in nature, then linked a reference to illustrate the point.

As for neutron stars, they can't exist. Free neutrons "evaporate" in under 15 minutes, and any attempt to force neutrons together—outside an atomic nucleus with associated protons—results in the particles flying violently apart. That's not theoretical, that's the result of laboratory tests. It's called nuclear chemistry. Meanwhile, "neutron stars" were an ad hoc invention to explain high frequency pulsars. Without a suitably dense material, such pulsars would blow themselves apart. Too bad some astrophysicist didn't question the fundamental assumption that pulsars spin "like a lighthouse." If one had, he might have found a more plausible answer.

And if you were honestly trying to be funny, forgive me for being too obtuse to see it. The straw man was in my way.

 
 Posted:   Oct 3, 2015 - 6:46 PM   
 By:   Solium   (Member)

Re: The viability of mainstream science.

Keep in mind scientists were smart enough to safely land a semi-automatic roving chem lab on Mars.
To suggest they are not smart enough to understand the geology they are exploring defies logic.

 
 Posted:   Oct 4, 2015 - 9:34 AM   
 By:   Metryq   (Member)

Solium wrote: Re: The viability of mainstream science.

Keep in mind scientists were smart enough to safely land a semi-automatic roving chem lab on Mars.
To suggest they are not smart enough to understand the geology they are exploring defies logic.


---

Speaking of logic, your argument is non sequitur. Landing a probe has nothing to do with geology (or areology in this case). Is it your argument that experts can never be wrong? Ever hear of Piltdown Man? Granted, that was a deliberate hoax, but it had the experts duped for half a century.

Keep in mind that Martian mineralogy is contentious—most scientific fields are. We see regular, sensational headlines of water, even of entire oceans on Mars. Opponents of that idea are not necessarily "deniers" or cranks:

http://www.soest.hawaii.edu/SOEST_News/PressReleases/Hamilton/

Proponents may have evidence suggesting a certain feature (such as water), but one must be careful to distinguish speculations from confirmed facts:

"The ice is not directly observed by the research team. Rather, it is the shape of the topography and the terracing in various craters that led them to conclude that massive amounts of water-ice can be found on Mars."

https://www.thunderbolts.info/wp/2015/09/14/ice-on-mars/

 
 Posted:   Oct 5, 2015 - 8:17 AM   
 By:   Jehannum   (Member)

And if you were honestly trying to be funny, forgive me for being too obtuse to see it. The straw man was in my way.

D-wor r-wor u-wor n-wor k-wordip

 
 Posted:   Oct 5, 2015 - 9:43 AM   
 By:   TheSeeker   (Member)

Oyoyoy.

 
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