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The science of riding gravity waves
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Old 09-11-2005, 17:58   #1
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The science of riding gravity waves

Reading this has made my brain hurt...

http://news.bbc.co.uk/1/hi/sci/tech/4415722.stm
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Old 09-11-2005, 18:09   #2
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Re: The science of riding gravity waves

It's given me a headache

Can anyone explain all that in english please?
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Old 09-11-2005, 18:30   #3
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Re: The science of riding gravity waves

Well maybe there will be someone along soon who could explain it to us.
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Old 09-11-2005, 18:33   #4
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Re: The science of riding gravity waves

i'll try...:

movement of all matter distorts space-time. when something moves it creates gravitational ripples, that squish everthing in their path along one axis (and strech about the mutually orthogonal axis)

unless you're looking at an incredibly large mass (i.e. a black hole), these distortions are unbeleivably small, and so rather difficult to spot.

i think the idea is we'll get to learn more about massive objects, if these waves can be 'seen'.

(feel free to correct this, anyone!)
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Old 09-11-2005, 18:51   #5
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Re: The science of riding gravity waves

Quote:
Originally Posted by bmxbandit
i'll try...:

movement of all matter distorts space-time. when something moves it creates gravitational ripples, that squish everthing in their path along one axis (and strech about the mutually orthogonal axis)

unless you're looking at an incredibly large mass (i.e. a black hole), these distortions are unbeleivably small, and so rather difficult to spot.

i think the idea is we'll get to learn more about massive objects, if these waves can be 'seen'.

(feel free to correct this, anyone!)
Will it help with the car starting on cold mornings ?
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Old 09-11-2005, 18:55   #6
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Re: The science of riding gravity waves

Quote:
Originally Posted by fireman328
Will it help with the car starting on cold mornings ?
The car is already moving, it's just your perception that says it's still.
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Old 09-11-2005, 18:56   #7
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Re: The science of riding gravity waves

...and this will end world poverty how?

Astounds me that they have time to do this sort of stuff. Let's face it, our movements in space time, the ripples of black holes etc doesn't really make much difference.

They need to watch a bit less Star Trek and get a life.
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Old 09-11-2005, 19:02   #8
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Re: The science of riding gravity waves

Quote:
Originally Posted by littld
...and this will end world poverty how?

Astounds me that they have time to do this sort of stuff. Let's face it, our movements in space time, the ripples of black holes etc doesn't really make much difference.

They need to watch a bit less Star Trek and get a life.
if you want to ditch all technology and live in a cave, i'm not gonna stop ya!

seriously though, you do have to wonder sometimes if the quest for knowledge is the highest priority...
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Old 09-11-2005, 19:28   #9
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Re: The science of riding gravity waves

Quote:
Originally Posted by littld
...and this will end world poverty how?

Astounds me that they have time to do this sort of stuff. Let's face it, our movements in space time, the ripples of black holes etc doesn't really make much difference.

They need to watch a bit less Star Trek and get a life.
You still have time to edit this post, use it wisely
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I'd like to withdraw this post because I just found the following:

Quote:
Page 1439 question 37.19
A pursuit spacecraft from the planet Tatooine is attempting to catch up with a Trade Federation cruiser. As measured by an observer on Tatooine, the cruiser is traveling away from the planet with a speed of 0.6c. The pursuit ship is traveling at a speed 0.8c relative to Tatooine, in the same direction as the criser. What is the speed of the cruiser relative to the pursuit ship?
A rep point for whoever posts the correct answer.
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Old 09-11-2005, 19:55   #10
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Re: The science of riding gravity waves

0.089c?
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Old 09-11-2005, 20:01   #11
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Re: The science of riding gravity waves

Quote:
Originally Posted by bmxbandit
0.089c?
No sorry
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Old 09-11-2005, 20:08   #12
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Re: The science of riding gravity waves

-0.2c?
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Old 09-11-2005, 20:08   #13
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Re: The science of riding gravity waves

meh

if at first you don't succeed, give up and go eat donuts
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Old 09-11-2005, 20:09   #14
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Re: The science of riding gravity waves

Quote:
Originally Posted by Wicked_and_Crazy
-0.2c?
You need to account for time dilation.

No I did not make that up.
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Old 09-11-2005, 20:12   #15
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Re: The science of riding gravity waves

heh, i accounted for time dilation! -0.16c then? (if coming towards it is -ve)
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