I agree, I don't see how on earth it can possiblly work. For one thing, you'l have the dopplar effect taking place and it would echo around SM so much that it would make a huge din.
I agree about the echo (unless they install soundproofing or other sound-deadening material on the ceiling when they're done with the asbestos removal...)
But as for the doppler effect on sound, it's actually a fairly simple bit of physics calculations to overcome... The doppler effect is simply an increase in the frequency of a sound based on how fast you are moving toward the source (or how fast the source is moving past you if you're standing still, like with a fire engine siren driving by you) To counteract the increase in frequency due to doppler, you just have to lower the output of the sound by the same frequency in order to hear the sound the proper way.
I'm sure there are engineers out there that could design a simple electronic system that detects the speed of the passing rocket, and then automatically adjusts the frequency of the sound output to match what's required for the sound/music to sound correct for that rocket as it approaches the speaker. It would sound very odd to someone *standing* next to the speaker, but to a vehicle moving past it, it'd sound just right.
If Bose can design a circuit that cancels sound by creating inverse sound waves of what's being cancelled, and build it into a headphone, I'm sure the anti-doppler circuit is a piece of cake.
I will admit, I was a bit skeptical of your "inside information" until you mentioned the zones being too close together and there being cascading. A very good friend of mine is a coordinator at Space Mountain and once told me about there being a ridiculous number of zones, so that makes your explanation a bit more plausible. :wave:
You don't need to be a Space Mountain CM to know that it has a ton of blocking zones... Anyone who knows the general operation of a roller coaster would be able to figure that out. I'm not a CM, nor have I ever been, but I know that Space Mountain has, at the bare minimum, 15 blocking zones, and most likely has a great deal more than that. (To operate a coaster, you must have at least one more blocking zone than the number of rockets you're operating. Space can operate up to 14 rockets per side at one time, so each track must have at least 15 blocking zones...)
-Rob