http://rjlibera.edublogs.org/2008/09/29/rocked-to-the-core/ Another excellent Edublogs.org weblog Wed, 03 Dec 2008 04:04:55 -0500 http://wordpress.org/?v=2.8.2 hourly 1 http://rjlibera.edublogs.org/2008/09/29/rocked-to-the-core/comment-page-1/#comment-5 pcfragile Wed, 01 Oct 2008 02:02:34 +0000 http://rjlibera.edublogs.org/?p=6#comment-5 That's bad if you can't read your handwriting. Anyway, good catch on the communicating through miles of rock. As for communication delays, if they're communicating through EM radiation (radio waves or microwaves) then there would be no noticeable delay (light can circle the globe 7 times in a second). If they're communicating through some sort of sound wave (sonar) then there would be a delay (plus it probably wouldn't work well with the amount of noise they'd be creating drilling through solid rock. That’s bad if you can’t read your handwriting. Anyway, good catch on the communicating through miles of rock. As for communication delays, if they’re communicating through EM radiation (radio waves or microwaves) then there would be no noticeable delay (light can circle the globe 7 times in a second). If they’re communicating through some sort of sound wave (sonar) then there would be a delay (plus it probably wouldn’t work well with the amount of noise they’d be creating drilling through solid rock.

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