Why do ships covered with energy shields shake when these shields are hit with a pure-energy weapon? Shouldn't pure-energy shields completely absorb a pure-energy blast? Not to mention any idea of reusing / recycling / recuperating that hit's energy to strengthen themselves.
Is the explanation:
- out-of-universe: makes the scene more dramatic/intense,
- in-universe: to let characters know, that they're actually in trouble (like a stick-shaker, letting the pilot know the plane is in trouble),
- any other (like a technical one)?
This is tagged to be a Star Trek-specific question, because it came to my mind, when watching a DS9 episode. But could actually by asked about any SF work that involves energy shields and energy weapons hitting them.