A critical part of learning to be a scientist is learning to work out what the implications are of any bit of knowledge we have or principle we choose. We choose gears for this icon since turning the small blue gear clockwise means that the yellow gear must turn counter-clockwise and the red on clockwise again. Assuming the blue gear turns clockwise has rigorous implications for the other parts of the system.

Following the implications of our foothold ideas and principles is a critical process of science. Sometimes these reasoning’s lead us to reject previously accepted principles. Sometimes they lead up to new and surprising phenomena.