There are two major differences between "center of gravity" and "center of mass":
1) The term "center of gravity" aplies to the bodies with mass and weight, while the term "centroid" applies to plan areas.
2) Center of gravity of a body is the point through which the resultant gravitational force (weight) of the body acts for any orientation of the body while centroid is the point in a plane area such that the moment of the area, about any axis, through that point is zero.
Center of gravity is the point at which a object can be suspended and be in perfect equilibrium
It is frequently quoted that upwards of 80% of our taste is made up by smell. So if you plug your nose and cover your eyes, the taste between an apple and onion should be indistinguishable. All potato chip flavors taste the same.
In the lungs. The carbon dioxide/oxygen diffuses through the capillaries surrounding the alveoli (grape like structures) in the lungs
