Camera work and editing skills.

1. 1:10  Close up: 

In the doctor who clip you can see the camera getting closer and closer as the tension is building up and creating suspense. Every time the video is being played each character is being closed up.

2:46 Over the shoulder

In this scene they are being shown as the characters trying to  do something. We can see their characters view. 

3:46 Long shot

In this scene you are able to see the energy waves being sent through different planets in space trying to get on call with the Doctor.

2. 3:33 High angle shot

In this scene high angle is being shown to make us see how big the signals are and how powerful they are being shown.

3. 3:47-3:54 Camera movement 

In this scene you can see the guy looking at the phone waiting for it to ring which creates suspense and right after that the phone starts ringing and there is a quick reaction which creates a dramatic tension about whats going to happen right after.

One aspect of editing is that the camera goes from a slow pace to a fast pace showing tension.