Relativity

This is a discussion on Relativity within the A Brief History of Cprogramming.com forums, part of the Community Boards category; Originally Posted by Zach L. Uhh... Been a bit since I've done relativity, but shouldn't the ball only "deform" in ...

  1. #16
    S Sang-drax's Avatar
    Join Date
    May 2002
    Location
    Göteborg, Sweden
    Posts
    2,072
    Quote Originally Posted by Zach L.
    Uhh... Been a bit since I've done relativity, but shouldn't the ball only "deform" in the direction it is traveling. (And no, it won't turn into an ellipse and thin out.)
    Yes, that was what I was trying to say in the post above.

    The high speed of the ball doesn't change anything in this case.
    Last edited by Sang-drax : Tomorrow at 02:21 AM. Reason: Time travelling

  2. #17
    Registered User major_small's Avatar
    Join Date
    May 2003
    Posts
    2,787
    Quote Originally Posted by Zach L.
    Uhh... Been a bit since I've done relativity, but shouldn't the ball only "deform" in the direction it is traveling. (And no, it won't turn into an ellipse and thin out.)

    So, if it's going straight for the hole ("straight" meaning directly at some projection of it -- i.e. at an angle would work so long as the trajectory takes it through the hole), then it should make it through so long as it would under non-relativistic circumstances. If it isn't on a trajectory that goes through the hole, it has bigger problems to worry about.
    we just basically said the same thing, except you used more correct wording and I was assuming the trajectory was exactly perpendicular to the plane the hole was in.
    Join is in our Unofficial Cprog IRC channel
    Server: irc.phoenixradio.org
    Channel: #Tech


    Team Cprog Folding@Home: Team #43476
    Download it Here
    Detailed Stats Here
    More Detailed Stats
    52 Members so far, are YOU a member?
    Current team score: 1223226 (ranked 374 of 45152)

    The CBoard team is doing better than 99.16% of the other teams
    Top 5 Members: Xterria(518175), pianorain(118517), Bennet(64957), JaWiB(55610), alphaoide(44374)

    Last Updated on: Wed, 30 Aug, 2006 @ 2:30 PM EDT

  3. #18
    Toaster Zach L.'s Avatar
    Join Date
    Aug 2001
    Posts
    2,686
    Alright... I just misunderstood the wording (major_small, I still can't quite understand yours... oh well).

    Cheers
    The word rap as it applies to music is the result of a peculiar phonological rule which has stripped the word of its initial voiceless velar stop.

  4. #19
    Registered User xxxrugby's Avatar
    Join Date
    Jan 2005
    Posts
    178
    If the speed is very very fast. And the ball is not very good fill with air. Then it will become like Rugby Ball. And you yan put it in your cheramic pen.
    But if is still to big. Or very well filled with air. With the increased speed also force of hitting the hole is increased, and beacuse of that when ball hit the hole. It will go into holle.
    Sorry for spelling errors, not English!
    xxxrugby: "All Human Race Will Die From My Hand!"
    xxxrugby: "We are all philosophers, when question is about politics!"

  5. #20
    S Sang-drax's Avatar
    Join Date
    May 2002
    Location
    Göteborg, Sweden
    Posts
    2,072
    Quote Originally Posted by xxxrugby
    If the speed is very very fast. And the ball is not very good fill with air. Then it will become like Rugby Ball. And you yan put it in your cheramic pen.
    But if is still to big. Or very well filled with air. With the increased speed also force of hitting the hole is increased, and beacuse of that when ball hit the hole. It will go into holle.
    Sorry, I don't understand.

    Quote Originally Posted by major_small
    either way, if the ball is malleable enough, and the force is constant, [...]
    The deformation due to high speed has nothing to do with malleability.

    I was only interested what would happen from a relativistic point of view, and I think the problem is solved. The ball will only deform in the direction of travel, and the speed will not affect its possibilities to travel though the hole.
    Last edited by Sang-drax : Tomorrow at 02:21 AM. Reason: Time travelling

  6. #21
    Toaster Zach L.'s Avatar
    Join Date
    Aug 2001
    Posts
    2,686
    To "clarify" a bit:

    The ball will really contract (not elongate) on the direction of travel. And, no force is necessary (and in fact it complicates the picture beyond the realm of special relativity). The "deformation has nothing to do with the mechanical properties of the ball, and from the ball's own perspective (or rather, the observer on the ball), there will be no deformation at all.
    Last edited by Zach L.; 02-11-2005 at 04:07 PM.
    The word rap as it applies to music is the result of a peculiar phonological rule which has stripped the word of its initial voiceless velar stop.

  7. #22
    The Defective GRAPE Lurker's Avatar
    Join Date
    Feb 2003
    Posts
    949
    Quote Originally Posted by Sang-drax
    Let's say we have a ball and a hole. The ball is slightly larger than the hole, so it won't fit.

    Now we throw the ball at an enormous speed direclty towards the hole. What happens?

    (i) (From a person standing beside the hole's POV)
    The ball is slightly smaller than the hole and will pass through.

    (ii) (From a person standing on the ball's POV)
    The hole is much smaller than the ball, so it'll crash when it arrives.


    What will happen?
    Subject A (thrower) throws Subject B (said ball). A decides to go for the fastball he's been practicing for (a few steroids, but he kinda apologized!) and goes for it. Subject B screams in terror, but it is too late. B has been thrown at a blistering speed of 20,000,001 mph! The whizz of his rubbery flesh skidding against the unforgiving air produces an acrid smell - B is on FIRE! Subject C (fireman) gets the extinguisher, but ALAS - B goes by to fast! A is standing, waiting, preparing for the amazing feat of Subject B meeting Subject D (said hole) in a clash of amazing physics! C is thrown back by the air force created by B. D prepares for impact: "MAN DECK! MAN DECK!". Subject E (other side of hole) screams shrilly in terror of the advancing ball. BOOOOOOOM! B hits D DIRECTLY on target. A pumps his fist up in the air in victory. B SHATTERS D and goes straight through Subject E. Because of the 22.324 dimension universe Subjects A, B, C, D, and E live in, B goes all the way around the world enough times to kill everyone. B finally burns up the last of his energy and EXPLODES, CREATING A GIGANTIMUS BLACK HOLE. This black hole eats EVERYTHING in the universe over a period of 12 hours, then collapses and creates a huge explosion. This explosion, after 15 billion years, is called the "Big Bang" by a large tribe on a planet in a Solar System on the edges of its galaxy.

    EDIT: PHEWWWWWW.....deeeeeep breath.

    EDIT2: Who gave me bad rep for this ?
    Last edited by Lurker; 02-12-2005 at 03:33 PM.
    Do not make direct eye contact with me.

  8. #23
    Rad gcn_zelda's Avatar
    Join Date
    Mar 2003
    Posts
    942
    Pretty much if you threw it at enormous speed it would go through the earth, but while doing so, the friction between the ball and the air would make it catch fire. It'd pop out in China, where they would eat it like chow mein(or however that's spelled).

  9. #24
    hacker in training AdamLAN's Avatar
    Join Date
    Sep 2004
    Posts
    56
    Oh i wish i could understand it as well as you do...i'm better with general relativity.

    What does this have to do with technology anyway?

  10. #25
    former member Brain Cell's Avatar
    Join Date
    Feb 2004
    Posts
    472
    Quote Originally Posted by major_small
    the solution is simple: make the hole bigger or the ball smaller.
    man .. i love the way you think , just like i do
    My Tutorials :
    - Bad programming practices in : C
    - C\C++ Tips
    (constrcutive criticism is very welcome)


    - Brain Cell

Page 2 of 2 FirstFirst 12
Popular pages Recent additions subscribe to a feed

Similar Threads

  1. Is this really true or it's just science fiction?
    By Nutshell in forum A Brief History of Cprogramming.com
    Replies: 145
    Last Post: 04-09-2002, 06:17 PM

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21