My sense of smell has greatly diminished in recent years. There are some smells I can't smell at all. Those that I still can sense are almost always smells that I have been acquainted with all my life tough they are usually faint. New ones frequently dont' register at all.
Let me relate what was to me an insteresting story I never would have thought of. One time my father (who is a doctor) told me that the olfactory nerves leading up the the brain from the nasal cavity pass through two holes in the middle of the skull. It sometimes happens that if someone takes a violent hit to the head, that the nervers will become severed during the violent and sudden movement of the brain within the skull. Apparently boxers and severe drunks who are prone to passing out and striking their head on the ground are two groups who experience such a thing in disproportionate numbers. I'm not saying you are either, just passing on the example as it was explained to me. I found it to be interesting.
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Today's Featured Article - Engine Valves - Some Helpful Information - by Staff. Intake - On the intake stroke the piston moves doward, sucking in carburized fuel through the open intake valve. Exhaust valve is closed. Compression - With both the intake and exhaust valves closed, the pistons upward stroke compresses or squeezes the fuel into the combustion chamber. Firing - Ignited by the spark, the compressed fuel explodes and forces the piston downward on its power stroke. Intake and exhaust valves are closed. Exhaust valves and seats are exp
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