subtracting

The brain has neurons that fire specifically during certain mathematical operations. This is shown by a recent study conducted by the Universities of Tübingen and Bonn. The findings indicate that some of the neurons detected are active…

Smell a cup of coffee. Smell it inside or outside; summer or winter; in a coffee shop with a scone; in a pizza parlor with pepperoni -- even at a pizza parlor with a scone! -- coffee smells like coffee. Why don't other smells or different…