According to the AOPA the average age of single-engine general aviation aircraft in the U.S. is over 30 years old and is expected to continue increasing. One of the reasons aircraft age more gracefully than autos is the required maintenance. Aircraft are required to undergo an annual inspection by a licensed mechanic.
The inferior frontal gyri are located in the lower back portion of the frontal lobe on each side of the brain. Creativity depends on thinking skills that rely on the use of baseline knowledge combined with innovative thinking.
1 The cerebrum fills up most of your skull. It is involved in remembering, problem solving, thinking, and feeling. It also controls movement. 2  The cerebellum sits at the back of your head, under the cerebrum. It controls coordination and balance.  The brain stem sits beneath your cerebrum in front of your cerebellum.