A rapid is a section of a river where the river bed has a relatively steep gradient causing an increase in water velocity and turbulence. A rapid is a hydrological feature between a run (a smoothly flowing part of a stream) and a cascade. A rapid is characterised by the river becoming shallower and having some rocks exposed above the flow surface. As flowing water splashes over and around the rocks, air bubbles become mixed in with it and portions of the surface acquire a white colour, forming what is called "whitewater". Rapids occur where the bed material is highly resistant to the erosive power of the stream in comparison with the bed downstream of the rapids. Very young streams flowing across solid rock may be rapids for much of their length.

Rapids are categorized in classes, generally running from I to VI. A Class 5 rapid may be categorized as Class 5.1-5.9. While class I rapids are easy to negotiate and require no maneuvering, class VI rapids pose threat to life with little or no chance for rescue.

Walter Elias "Walt" Disney (December 5, 1901 – December 15, 1966) was an American film producer, director, screenwriter, voice actor, animator, entrepreneur, entertainer, international icon, and philanthropist, well known for his influence in the field of entertainment during the 20th century. Along with his brother Roy O. Disney, he was co-founder of Walt Disney Productions, which later became one of the best-known motion picture producers in the world. The corporation is now known as The Walt Disney Company and had an annual revenue of approximately US$36 billion in the 2010 financial year.

Disney is particularly noted as a film producer and a popular showman, as well as an innovator in animation and theme park design. He and his staff created some of the world's most well-known fictional characters including Mickey Mouse, for whom Disney himself provided the original voice. During his lifetime he received four honorary Academy Awards and won 22 Academy Awards from a total of 59 nominations, including a record four in one year, giving him more awards and nominations than any other individual in history. Disney also won seven Emmy Awards and gave his name to the Disneyland and Walt Disney World Resort theme parks in the U.S., as well as the international resorts Tokyo Disney Resort, Disneyland Paris, and Hong Kong Disneyland.

Nancy Davis Reagan (born Anne Frances Robbins; July 6, 1921) is the widow of former United States President Ronald Reagan and was First Lady of the United States from 1981 to 1989.

Nancy was born in New York City; her parents divorced soon after her birth and she grew up in Maryland, living with an aunt and uncle while her mother pursued acting jobs. As Nancy Davis, she was an actress in Hollywood in the 1940s and 1950s, starring in films such as Donovan's Brain, Night into Morning, and Hellcats of the Navy. In 1952 she married Ronald Reagan, who was then president of the Screen Actors Guild, and they had two children. Nancy was the First Lady of California when her husband was Governor from 1967 to 1975. In that capacity, she began work with the Foster Grandparents Program.

Nancy Reagan became First Lady of the United States in January 1981 following her husband's election. She was criticized early in his first term largely due to her decision to replace the White House china, despite it being paid for by private donations. Nancy restored a Kennedy-esque glamor to the White House following years of lax formality, and her interest in high-end fashion garnered much attention, as well as criticism. She championed recreational drug prevention causes by founding the "Just Say No" drug awareness campaign, which was considered her major initiative as first lady. Always protective of her husband, more controversy ensued when it was revealed in 1988 that she had consulted an astrologer to assist in planning the president's schedule after the 1981 assassination attempt on her husband. She had a strong influence on her husband and played a role in a few of his personnel and diplomatic decisions.