[ExI] Pesky Neutrinos

Adrian Tymes atymes at gmail.com
Wed Nov 2 17:01:16 UTC 2011


2011/11/2 john clark <jonkc at bellsouth.net>

> So at 315pm by your wristwatch you notice he gets your message and looks
> at his wristwatch, but what he reads is 215PM.


Right, but you know how fast the message was going, so you can compute when
he receives your message.  What does it say on your watch at that time?
Regardless of what it says on his watch, or when you would see him receive
it.

So at 215PM by his wristwatch he gets your message and sends it right back
> to you with his FTL neutrino radio. He looks at you through his normal
> telescope and waits for you to receive the relayed message, at 230PM by
> your friend's wristwatch he notices that you receive the relayed message
> and you look at your wristwatch, but because of time dilation he notices
> that your wristwatch reads 130PM.
>

Wouldn't time dilate in the other direction for you, relative to him,
because he underwent acceleration while you did not?  It's a classic
experiment that he can later return to you and his clock will be
permanently behind yours.
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