By "I'm bad at explaining things to people" I mean, that i am bad at explaining things without being asked a question first :p
Table of contents:
1:00 Basic explanation of grav. generators: Field size, adjustment of said field and how to view the field.
4:45 "quick" explanation of a craft made for gravity grappling.
9:30 Walking on walls - Construction
14:20 Walking on walls - Demonstration.