In cultured pearls, a mother-of-pearl bead or a piece of tissue is inserted (by man) into the mollusk to start the process. For both, the quality of the nacre dictates the quality of the luster, or shine of the pearl, which is very important to its beauty and its value.
For an airplane pilot, education takes many forms, including applied instruction, a high school diploma, an associate's or bachelor's degree, and specialized training. The Federal Aviation Administration also requires pilots to accumulate a lot of real-world knowledge in the form of flight-hours.
To be eligible to take the licensing exam, pilots must be at least 18 years of age and have logged 250 hours of flight time. The licensing exam is a written test on FAA regulations, safety procedures and navigation techniques.y the time a pilot qualifies for a job at an airline, he has already logged about 4,000 hours of flight experience. Airline pilots usually start out as flight engineers, pilots for charter companies or flight instructors before becoming commercial pilots.