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.
How do you learn how to fly? Learning to fly an aircraft includes a mixture of training on the ground as well as in the airplane. Ground study covers topics including aviation weather, aerodynamics, reguâ¦lations, navigation, and aircraft performance. You don't have to attend a formal ground school to study this material. You can study on your own or with your instructor.