Random Analogies
"You swallow by choice, but once the swallow begins, the digestion process becomes involuntary and moves along under the control of the nerves. The esophagus is like a stretchy pipe that's about 10 inches (or 25 centimeters) long. It moves food from the back of your throat to your stomach."
"Using chemical methods Paul Boyer proposed that ATP synthase is like a cylinder with alternating alpha and beta subunits. An asymmetrical gamma subunit in the middle of the cylinder causes changes in the structure of the beta subunits when it rotates (100 r.p.s.). He termed these structures open (betaO), loose (betaL) and tight (betaT)."
A seemingly bottomless pit of money for which you only have to refill with a handful of money each month. The bank takes a slightly smaller handful for its fee each month. If you keep to the banks plan you then you will have to put back over 100 times what you took!
