Drawing SR to scale
- From: "Ruth & Dave" <bikestop@xxxxxxxxxx>
- Date: Sun, 15 Feb 2009 15:30:12 +1300
This is an exercise in gravity free space
Draw a 6 inch circle.
Draw a vertical line from its centre right through the top of the sphere.
Draw a horizontal line out to the right starting 1.8inches up from the
compass point.
The circle is a two dimension diagram of a propagating sphere of light drawn
to scale one to one.
The horizontal line is the top edge of a 12 inch cube one flat face to its
direction of travel.
The vertical line from the centre of the sphere to the sphere edge is the
radian or path of one photon which coincides with the vertical edge of the
left hand side of the cube.
The cube top left hand corner is 1.8 inches up this radian which means the
cube is moving at .6c. The cube is inertial.
At the intersection with the top of the cube and the sphere edge out to the
right is a photon being used to measure the speed of light over the top face
of the cube.
Questions : where did the cube top photon start from?
What is the cube top crossing speed of the photon relative to the inertial
frame?
I presently believe the photon started from the sphere centre not where the
left hand edge of the cube is now.
The crossing speed of the photon over the frame surface is precisely .8c.
Any other views?
Dave R
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