The_root_of_all_evil said:
HERE'S ONE FOR STARTERS. HOW THE HELL DO YOU BLOCK A TEN MILE WIDE DIMENSIONAL GATE BY BLOCKING UP A ROAD. WHAT DO THE ORDERS "SHOOT ON SIGHT" ACTUALLY MEAN?
sorry...just so angry.
Simple, it was going straight up at the width of the tunnel, so stop all air traffic and block both ends of the tunnel (Which they did)you just wern't listening very well

. Shoot on sight is pretty self explanatory is it not? "Just shoot anything that looks like it could kill us the second you see it"
Stingray things were AWESOME, but besides that it really was just "The Doctor meets Lara Croft". I loved it but slightly disappointed. David is an awesome Doctor, better than Chris in my opinion
Ok time to sort a few questions out.
Our motorways don't create temporal rifts because they arn't constants, if we had a motorway, that goes around the entire world and have every car on the world driving round at exactly 33mph the whole time then yes, our motorways would make temporal rifts. It takes the Stingrays a whole trip around the planet to create it.
The drive didn't specifically need gold it needed a malleable metal and a couple of other metallic properties, which their gold chalice happened to have.
The 'rays were already at the planet when the Flies got there and spaceships don't instantly teleport to the ground and all engines need ventilation don't they?
The bullets wern't particularly effective, but they wern't made entierly of metal, there were soft bits in between the metal exo-skeleton and it was more of a metal coating (doctor said they eat metal and push that to the outside of their body), not a solid metal body.
It was a night bus and I mean it was practically empty, so if there are free spaces downstairs you aren't going to walk upstairs for no reason are you?
There was so many 'rays do you think they are going to all line up and go through single file?
The crystal wasn't worthless, it was some gravity based engine, hence the gravity well (the tunnel she went down red button was for access for engineers duhh) and gravity clamps.
"Sonic" means it would work off sound waves hence the noise, so it sends out waves to do it's magic.
Thats all I can be bothered answering, it's TV it all doesn't have to be perfectly explained there are some things you just leave be others you just listen and you know the answer to.
Edit: They can fly, due to being aerodynamic and they have undulating wing type things.