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Physics, Astronomy & Cosmology / Re: So what is Gravity?

« on: 04/05/2004 06:57:03 »

These are just my idle thoughts so please shoot them down at will. []  I've thought for a while now that gravity pulls in the direction of the 4th dimension.  A simple example being a round planet.  The 4th dimension should be perpendicular to our 3 dimensions and if we take a planets surface to be "smooth" then gravity pulls perpendicular to all surfaces.  I wonder if gravity is like a magnet under paper moving iron filings around.  Mass bends space-time in the direction of the 4th dimension, we try and fall in and like the iron filings we feel the force but cannot move that direction.

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General Science / Light faster than light - sideways?

« on: 16/02/2004 09:24:54 »

I saw a documentary on time travel and one section got me thinking.  Imagine a photon bouncing back and forth between 2 mirrors.  If you move the mirrors sideways the photon will keep following the same path relative to the mirrors, i.e it will move sideways with the mirrors.  
Am I right in thinking that a laser does not bend with movement?  If you move a laser around does it "drag" like the water out of a hose or will it keep a straight line?
My thinking is that if it does keep a straight line then what happens if you spin a powerful laser at high RPM?  Like a spinning arm the outer section moves faster than the inner section.  With an arm of photons stretching out hundreds or thousands of miles and spinning hundreds of times a minute there has to be a point where the photons move sideways faster than they move outwards.

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General Science / Re: spectrums

« on: 31/01/2004 20:16:03 »

How about this explination I found on another forum.  The toipc is actually talking abut how higher dimensions interact with our 3.

 

quote:Physical points have to arrange themselves in triangles on a TV screen. I thought, "How can physical points arrange themselves in 3D space?" They would arrange themselves in tetrahedrons. Two tetrahedrons base to base have lines going in seven directions. When you look at a star, you can see rays going in six or seven different directions, just like you see light spilling out in three directions on a TV screen due to the arrangement of pixels. Old cameras had two rays, which is called a lensing effect. New cameras have three rays, which is not due to the lens, but due to the arrangement of pixels. Stars have six or seven rays, which is just what I would expect since I realized the arrangement of points in space line up in seven directions. In 3D space, one ray might be pointing straight at you so you would not see it. If you see a star with five rays, which is rare, the rays are very clearly defined, since two rays are more or less pointing at you, and the other five are very flat and evenly spaced to your line of sight. Sometimes, on big lights you see rays and the lensing effect. And the number of rays changes depending on when you look. Space has an absolute structure, and the earth is rotating through it. The way to count the rays is to count all the rays on one half of the star or bright light. A bright light in a TV camera has three rays on one half of the light source, and those three rays continue on the other side in the same direction.

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General Science / Re: spectrums

« on: 20/01/2004 17:50:53 »

Just an observation, it may be an effect of the cornea.  I see the lines more exaggerated when I wear my glasses.  It could be a lens effect but it's probably just be my glasses magnifying everything. []