Re: Squeezed TV transmissions from ship


<jt64@xxxxxxxx> wrote in message news:1154860525.269243.43250@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
I've been thinking about how 60 frames TV transmission sent from
inertial frame A that travel 0,99 c relative B would be received (as
ship A approach planet B) according to SR.

Example below from planets inertial frame.

[Transmission starts 300 000 km from planet]
The first frame is received exactly after 1 second at planet, and then
the other 59 frames is received within 0,01 seconds since all frames is
"squeesed between ship and planet", they must pass planet before the
ship do. Right?
60 frames received within 0,01 seconds [c-0,99=0,01*300 000 km=3000
km]

[Transmission starts 600 000 km from planet]
120 frames received within 0,02s.

[Transmission starts 1lh="light hour" km from planet]
216000 frames received within 36 seconds, could this be right?

This is not doppler?

That is exactly what it is. Blue shift if you like.

Martin Hogbin


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