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(SeattlePI)   Okay, folks, that's as far and as long as we can imagine thrusting through space ... So, let's pack it in   (seattlepi.com) divider line 109
    More: Interesting, NASA, jabs  
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11605 clicks; posted to Main » on 26 Jun 2013 at 6:10 PM (1 year ago)   |  Favorite    |   share:  Share on Twitter share via Email Share on Facebook   more»



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2013-06-27 07:47:27 AM

MythDragon: Eh. Wake me up when NASA gets to this tech level:
[img607.imageshack.us image 706x262]


NASA better have the "creative" race attribute or they're farked.
 
2013-06-27 07:49:24 AM

DubtodaIll: I've got 5 bucks that says the light barrier will be as inconsequential as the sound barrier.


I'll take that bet. When they were building aircraft to break the sound barrier, it was known that things can go faster (bullets, meteors, whatever) but not known how to build control surfaces that would work among the shock waves.

Feel free to point me to a link showing where anything with mass has been accelerated past c.
 
2013-06-27 07:51:06 AM

ko_kyi: Feel free to point me to a link showing where anything with mass has been accelerated past c.


I will accept that $5 in the form of cash or a money order
 
2013-06-27 08:13:48 AM

The All-Powerful Atheismo: I will accept that $5 in the form of cash or a money order


Wat
 
2013-06-27 09:11:16 AM

ko_kyi: DubtodaIll: I've got 5 bucks that says the light barrier will be as inconsequential as the sound barrier.

I'll take that bet. When they were building aircraft to break the sound barrier, it was known that things can go faster (bullets, meteors, whatever) but not known how to build control surfaces that would work among the shock waves.

Feel free to point me to a link showing where anything with mass has been accelerated past c.


There isn't any substantial evidence that anything can move faster than light but it's my guess it's because we don't know how to find it.  There was the neutrino incident in Europe where they thought they had evidence of something going faster than light turned out to be a "measuring error."  But they're still debating that.  All of our knowledge currently points to the idea that absolutely nothing can go past the speed of light.  Though we've been wrong before, in fact mostly every time whenever we think there are limits to our capabilities.
 
2013-06-27 09:25:41 AM
farm3.staticflickr.com
 
2013-06-27 09:32:04 AM

DubtodaIll: There isn't any substantial evidence that anything can move faster than light but it's my guess it's because we don't know how to find it.  There was the neutrino incident in Europe where they thought they had evidence of something going faster than light turned out to be a "measuring error."  But they're still debating that.  All of our knowledge currently points to the idea that absolutely nothing can go past the speed of light.  Though we've been wrong before, in fact mostly every time whenever we think there are limits to our capabilities.


The neutrino thing wasnt exactly a measurement error... neutrinos pass through solid objects unobstructed, so what happened was the neutrino burst actually passed through the earth and was detected "faster" than light because the fiber optic signal still had to travel in a curved path around the earth.  They move at the same speed.

Also, a lot of peoples brains interpret the speed of light wrong.  It isnt that "nothing can move faster than light", so much as "light travels at the maximum possible speed".  "Light" isnt the only thing that travels "At the speed of light".
 
2013-06-27 10:06:44 AM

DubtodaIll: There isn't any substantial evidence that anything can move faster than light but it's my guess it's because we don't know how to find it. There was the neutrino incident in Europe where they thought they had evidence of something going faster than light turned out to be a "measuring error." But they're still debating that.


There isn't ANY evidence that anything can move faster than the speed of light; it's a known limitation on how the universe works.  Mass is a function of speed; as speed approaches c, mass approaches infinity.  There is no technological barrier to infinity.  As for the neutrino incident, it was found to be an error.  There's no debate.

I get what you mean in that betting against the tech curve is always bad gamble, but in these cases engineers don't find ways to break the laws of physics; they find ways around them.  Engineering, after all, is a matter of function, not method.  In the 1960s people were imaging we'd have flying cars by this century.  I've seen artist's conceptions of John Doe commuting to work in a suit and hat by hopping into what was basically a streamlined car with rocket engines and wings.  What we have instead is something far more sophisticated, advanced and efficient:  digital telecommunications.  Why bother wasting all that money and time to shuttle someone from point A to point B when you can transfer information over a fiber-optic cable at the speed of light?  THAT'S how you get a technological paradigm shift.  The suits back in the 1960s would never dare dream of a world where a significant percentage of the workforce could generate their output from home; hell, a lot of them are still refusing to wrap their heads around the possibility and mandate commuting to an office.  Preferentially getting excited over the possibility of FTL travel may seem audacious, but it's really just an extrapolation of existing infrastructure.  This work on the ion thruster* is important, but only because few concepts become obsolete entirely.

*huh huh, I said "thrust"
 
2013-06-27 03:44:25 PM

The All-Powerful Atheismo: Ishkur: JesseL: With a 1000Kg starting mass and 230Kg final mass, plugging the numbers into the Rocket Equation yields something more like 333,500 km/s for the final velocity.

That's faster than the speed of light.

You may have misplaced a decimal or something.

He forget to carry the 1


i.imgur.com
 
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