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Shut yourself up with some friend in the main cabin below decks on some large ship, and have with you there some flies, butterflies, and other small flying animals. Have a large bowl of water with some fish in it; hang up a bottle that empties drop by drop into a wide vessel beneath it. With the ship standing still, observe carefully how the little animals fly with equal speed to all sides of the cabin. The fish swim indifferently in all directions; the drops fall into the vessel beneath; and, in throwing something to your friend, you need throw it no more strongly in one direction than another, the distances being equal; jumping with your feet together, you pass equal spaces in every direction. When you have observed all these things carefully (though there is no doubt that when the ship is standing srill everything must happen in this way), have the ship proceed with any speed you like, so long as the motion is uniform and not fluctuating this way and that. You will discover not the least change in all the effects named, nor could you tell from any of them whether the ship was moving or standing still. In jumping, you will pass on the floor the same spaces as before, nor will you make larger jumps toward the stern than toward the prow even though the ship is moving quite rapidly, despite the fact that during the time that you are in the air the floor under you will be going in a direction opposite to your jump. In throwing something to your companion, you will need no more force to get it to him whether he is in the direction of the bow or the stern, with yourself situated opposite. The droplets will fall as before into the vessel beneath without dropping toward the stern, although while the drops are in the air the ship runs many spans. The fish in their water will swim toward the front of their bowl with no more effort than toward the back, and will go with equal ease to bait placed anywhere around the edges of the bowl. Finally the butterfles and flies will continue their flights indifferently toward every s |
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side, nor will it ever happen that they are concentrated toward the stern, as if tired out from keeping up with the course of the ship, from which they will have been separated during long intervals by keeping themselves in the air. And if smoke is made by burning some incense, it will be seen going up in the form of a little cloud, remaining still and moving no more toward one side than the other. The cause of all these correspondencess of effects is the fact that the ship's motion is common to all the things contained in it, and to the air also. That is why I said you should be below decks; for if this took place above in the open air, which would not follow the course of the ship, more or less noticeable differences would be sen in some of the effects noted. |
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did all that. nothing happened. |
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I uses flying squirrels as the other "small flying animals". I found the entire experience quite relaxing myself, particularly toward the end when a giant squid started attacking the ship. |
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I'm not kidding. it didn't do anything for me. if I had paid you for this, I would demand my money back. |
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I would charge you a "demanding your money back" fee that is equal to 5 times the money you spent. Then I would give you your money back. |
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reluctantly. |
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it's just crazy enough to work! |
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It's a real thought experiment (using imagination to solve a problem) by Galileo. |
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physics are really pretty goddamn amazing. I wish I had the attention span and patience to really understand them. as is, they make me chain smoke and chew my fingernails til they bleed. |
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i'm not sure yet but.. i think i won! |
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This is all a about relativity. There *are* differences between that observed on a moving body and that observed whilst standing still. The differences are just too minute to be observed (theoretically). Your sentiments, however, are what good science is all about. The ol' gedankenexperiment is the foundation of theoretical physics, really. |
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Wow, did you know the german word for thought experiment right off the top of your head?? Here are some nice completely unrelated quotes I found: Jean-Paul Sartre- "Hell is other people." Immanuel Kant- "Of the crooked timber of humanity, no straight thing can ever be made" Samuel Beckett- "Hell must be like... reminiscing about the good old days when we wished we were dead" Arthur Schopenhauer- "human existence must be a kind of error." |
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What's this? One of galileo's experiments? |
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nietschze is another good german philospher. you can see him featured in my avatar <-------------------------------------- I don't see how this is a thought experiment though. It just seems like he is recording some observations. |
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"Wow, did you know the german word for thought experiment right off the top of your head??" That's the accepted word for this stuff afaik. I'm studying comp sci, but I have an unhealty interest in theo phys ;) "Arthur Schopenhauer- "human existence must be a kind of error." " <-- I like this one a lot! Time goes minutely faster at the edge of a rotating vinyl than it does at the edge of a stationary vinyl. That fact messed me up for AGES :D |
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looks like I transposed the 'z' in 'Nietzsche' Damn, how can those clever Germans string together so many consonants and get away with it? |
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Mietzsche looks like one crazy mo'fo. Richard Dawkins- Like computer viruses, successful mind viruses will tend to be hard for their victims to detect. If you are the victim of one, the chances are that you won't know it, and may even vigorously deny it. |
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/spreads 'Drink Buckfast and find enlightenment' meme.... |
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I DON'T HAVE THAT MEME NO SIR THANK YOU PLEASE |
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This would be a great T-shirt for angsty high schoolers: We are all atheists about most of the gods that humanity has ever believed in. Some of us just go one god further. |
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ian noll, im confused by you ...........sometimes |
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If you do any of those things while the ship is accelerating then there would be a difference in the way they moved. Accept for the flying squirell who's movement is independant of space and time itself and if you did not notice the subtle differences in this glidings mammal's movements, you have been decieved for this furry tree leaper is as clever as it is cute. |
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Actually, if you want to get really detailed, since the earth isn't perfectly flat, the ship wouldn't exactly be travelling in a straight line, so it would have a little bit less or a little bit more angular momentum, and angular momentum=an accelerated frame of reference,(depending on if it was sailing with or against the rotation of the earth) which you CAN observe the affects of. Either way, time would be different for the 'at rest' frame of reference, and the 'moving ship' frame of reference. |
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89+12=? 67+34=? 41+53=? now, think about one tool and it's colour. in the next post i give you the answer about what were you thinking... |
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done? |
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galelio first postolated that all movition is relative... in your car driving one hundred miles and hour if you drop a penny it will fall straight down to the floor. |
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it's true that if you had an atomic clock you could tell... |
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wait no thats wrong... you wouldn't be able to tell because your time would be the same relative to the clock.... duh |
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