Visible light is the spectrum that humans can see ranging from 400-700 nm
Acceleration actually means ANY change in speed OR direction. If the car isn't moving in a straight line, then its direction is changing. That means it's accelerating, even if its speed isn't changing.
Feel better and develop communication skills
It's not only the physical well-being that has developed as well as intellectual and emotional aspect of an individual. When having conversation to someone and you are doing something it's also the same of having a multitask work. That all senses response quickly and something is developing in you, at same time you are establishing good rapport towards others.
