Shush! You're ruining it!

Already sold as a product. http://www.thinkgeek.com/stuff/41/wec.shtml

That's why the episode is called "The Impossible Planet". Because it's crazy and shouldn't be possible, the characters are all well aware of that. It's the reason they're there studying the planet. Also, the satan creature wasn't the one producing the beam, it was part of his prison.
When it comes to Doctor Who, I like to take the Clarke's third law view of everything. It fits nicely.
"Any sufficiently advanced technology is indistinguishable from magic."

Ah, but SOE normally kills their MMOs by actively messing with them. SOE just leaves PlanetSide to die, it gets no support at all. The only thing they have been doing is pulling servers, there will only be one left by the end of this month.

If PlanetSide wasn't the bastard child of SOE. The population levels are going to drop as soon as this month's free play ends and all the old players who left disappear again. If SOE ever bothered to advertise PlanetSide or even give it a dev team that consists of more than one guy who messes with it for shitty events, it might be successful.

Notebook paper? Are you crazy? Writing by hand is so damn slow. I haven't written a homework assignment for years, I type everything.

Although there are still people who write it out, regardless of how long it is. I don't understand why anyone would prefer writing by hand over typing.

In Enterprise they had normal water showers. Sonic showers were mentioned in the others.