More ideas from Paul
Do you know how to navigate in the wild?

The Direction Connection Finding your way in the wilderness without a map and compass is one of the most valuable skills you can possess. Here are a few tips, tricks and our favorite tool for gauging your sense of direction when you're outdoors.

These Are the Elements in the Human Body: Element Chemistry of Your Body

Find out what elements are in the human body and what the most abundant elements do to help keep you alive.: Element Chemistry of Your Body

action+potential+nerve+impulse | Action Potential

This diagram shows how sodium and potassium ions are pumped through protein channels. The sodium ions are pumped out of the cell, while potassium is pumped into the cell. The movement of these ions creates resting potential and action potential.