Originally Posted by starshipvelcro
I'm not a scientist, so I don't exactly understand terms like "sonic characteristics" and "sloshing"
Then let me break it down super scientifically.
If you grasp a bottle from the very top with two fingers and move it back and forth like a pendulum:
High resistance can be felt in the fingers, hard to grasp when direction is changed
Low frequency noise coming from the liquid (*glug*) --> CLOSER TO FULL
Moderate resistance can be felt in the fingers
High and low frequency noises coming from the liquid (*splish* *sploosh*) --> HALF-FULL
Little additional resistance can be felt in the fingers beyond the weight of the bottle
High frequency noise coming from the liquid (*pshhhh* *splish*) ---> NEARING EMPTY