>>12256724That's because you don't read about the real world stuff. Go take some physics and biology classes. At the end of the day it's all just measurements and rates. The basic equation in any application is where is just the amount of stuff at time and . In classical mechanics, can be either position or momentum/velocity, and is either velocity or acceleration. Then you can do whatever you want from there, extract whatever numbers you want, etc. and interpret the results in terms of the qualities of the system.
