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Forums - General - The Universe (History Channel Series)

ssj12 on 15 January 2008
Lingyis said:
ssj12 said:
 

1 and 3 I learned while watching The Universe. So it is stuff scientists are studying.

2. wouldn't it matter which direct you send someone? If you send someone towards the center of the Universe where it is more dense with particles and dark matter versus the edge of the Universe where particles, dark matter, and dark energy is less concentrated?


 1 and 3: it's stuff scientists are studying, but for 1) they're trying work relativity into their theories, not out, in the sense that their theories need to explain effects explained by relativity and 3) is again, something people are studying.  but up to this point, there is scant evidence, and i highly doubt we'll see any solid evidence anytime soon. 

 2: it's an effect purely from special relativity--no additional assumptions needed.


 1 and 3 - well they believe that if someone could travel througha worm hole it would break the TOR. As for objects that travel faster then the speed of light. It is possible. Anything is. Jsut like The belief that the universe started from a White Hole and the universe will die by freezing.

2. Whats the issue with me questioning the plausible theory that the amount of one of the twins age is a matter of where in the universe they are. I figure the closer to the center of the universe the faster they would age as the farther to the edge the slower. 



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misterd on 18 January 2008
ssj12 said:
misterd said:
I'm a HS science teacher (bio mostly, but teaching General Science in Alt Ed) and just today my set of The Universe DVDs just arrived today ($27 from Amazon). I need to pick through all 16 episodes to find ones that will be good for these kids, as I'll be starting the astronomy unit soon.

 Earth, Black Holes, Dark Matter and maybe the first one. Those are all you need. 


Please understand these students are deeply stupid.



misterd on 18 January 2008
Lingyis said:
ssj12 said:
supermariogalaxy said:
Off Topic: What do you guys think about the theory of relativity? (discovered by Albert Einstein) You know, that everything ages realtive to Earth...Do you think we might be actually able to send 1 twin light years away from Earth and keep one on Earth to find that the one in space has hardly aged after 10 years?????????

1. Scientists are close to actually disprove relativity or cement it into place because they are trying to figure out the whole worm hole thing.

2. wtf is you question. I dont understand

3. did you know theres object that go faster then the speed of light. lol

 

I've learned so much from this show. lol


 uh, please refrain from making comments on things you have absolutely no idea about.

1.  Maybe somebody made an offhand remark and you took it as gospel.  

2.  That's because you haven't studied relativity (special relativity, to be exact).  It should be in most high school curriculum, which is why I think he's asking it.   It's called the twin paradox.  Just look it up on Wikipedia for experimental evidence that this is actually real.

3.  Uh, okay. I don't know if you really believe that or if you just got that idea from sci-fi novels.  Special relativity basically leads to the conclusion that it is impossible for anything to travel faster than light.

 


I'm a biology guy far more than a physics one, so I may have this wrong, but my understanding is that the rule actually says nothing can pass the speed of light - particles (like the theoretical and Trek-friendly tachyons) that start existance going faster than light would be allowed, but they would have the same trouble decelerating below light speed as we do accelerating past it.