Answer the question at the end by quoting:

Fazlur Rahman Khan (Bengali: phjlur rhmaan khaan, Fozlur Rohman Khan) (3 April 1929 - 27 March 1982) was a Bangladeshi-American structural engineer and architect, who initiated important structural systems for skyscrapers. Considered the "father of tubular designs" for high-rises, Khan was also a pioneer in computer-aided design (CAD). He was the designer of the Sears Tower, since renamed Willis Tower, the tallest building in the world from 1973 until 1998, and the 100-story John Hancock Center. Khan, more than any other individual, ushered in a renaissance in skyscraper construction during the second half of the 20th century.
Khan's central innovation in skyscraper design and construction was the idea of the "tube" structural system for tall buildings, including the framed tube, trussed tube, and bundled tube variants. His "tube concept", using all the exterior wall perimeter structure of a building to simulate a thin-walled tube, revolutionized tall building design. Most buildings over 40 stories constructed since the 1960s now use a tube design derived from Khan's structural engineering principles. Lateral loads (horizontal forces) such as wind forces, seismic forces, etc., begin to dominate the structural system and take on increasing importance in the overall building system as the building height increases. Wind forces become very substantial, and forces caused by earthquakes, etc. are important as well. The tubular designs resist such forces for tall buildings. Tube structures are stiff and have significant advantages over other framing systems. They not only make the buildings structurally stronger and more efficient, but also significantly reduce the structural material requirements. The reduction of material makes the buildings economically more efficient and reduces environmental impact. The tubular designs enable buildings to reach even greater heights. Tubular systems allow greater interior space and further enable buildings to take on various shapes, offering added freedom to architects. These new designs opened an economic door for contractors, engineers, architects, and investors, providing vast amounts of real estate space on minimal plots of land. Khan was among a group of engineers who encouraged a rebirth in skyscraper construction after a hiatus of over thirty years. The tubular systems have yet to reach their limit when it comes to height. Another important feature of the tubular systems is that buildings can be constructed using steel or reinforced concrete, or a composite of the two, to reach greater heights. Khan pioneered the use of lightweight concrete for high-rise buildings, at a time when reinforced concrete was used for mostly low-rise construction of only a few stories in height. Most of Khan's designs were conceived considering pre-fabrication and repetition of components so projects could be quickly built with minimal errors. The population explosion, starting with the baby boom of the 1950s, created widespread concern about the amount of available living space, which Khan solved by building upward. More than any other 20th-century engineer, Fazlur Rahman Khan made it possible for people to live and work in "cities in the sky." Mark Sarkisian (Director of Structural and Seismic Engineering at Skidmore, Owings & Merrill) said, "Khan was a visionary who transformed skyscrapers into sky cities while staying firmly grounded in the fundamentals of engineering."

Is there any popular buildings that use this structural design?

Khan was a visionary who transformed skyscrapers into sky cities

IN: Patsy Cline (born Virginia Patterson Hensley; September 8, 1932 - March 5, 1963) was an American country music singer and part of the Nashville sound during the late 1950s and early 1960s. She successfully "crossed over" to pop music and was one of the most influential, successful, and acclaimed vocalists of the 20th century. She died at age 30 in the crash of a private airplane. Cline was known for her rich tone, emotionally expressive and bold contralto voice, and her role as a country music pioneer.

Patsy Cline was born Virginia Patterson Hensley on September 8, 1932 in Winchester, Virginia, in the city's Memorial Hospital. She was the eldest child of seamstress Hilda Virginia (nee Patterson, 1916-1998) and blacksmith Samuel Lawrence Hensley (1889-1956). She had a brother Samuel Jr. (1939-2004) and a sister Sylvia. The family moved often before finally settling in Winchester, Virginia when Patsy was 16. Sam Hensley deserted his family in 1947, but the children's home was reportedly happy nonetheless. When Patsy was 13, she was hospitalized with a throat infection and rheumatic fever. She later said, "The fever affected my throat and when I recovered I had this booming voice like Kate Smith." Cline enrolled at John Handley High School but never attended classes. To help her mother support their family, she worked as a soda jerk at Gaunt's Drug Store and a waitress at the Triangle Diner. She watched performers through the window at the local radio station, and she asked WINC (AM) disc jockey Jimmy McCoy if she could sing on his show. Her performance in 1947 was well received and she was asked back. This led to appearances at local nightclubs wearing fringed Western outfits that her mother made from Patsy's designs. Cline performed in variety and talent shows in the Winchester and Tri-State areas, and she gained a large following through the shows and local radio appearances. Jimmy Dean was already a country star in 1954, and she became a regular with him on Connie B. Gay's Town and Country Jamboree radio show on WAVA (AM) in Arlington County, Virginia.

Did she go to college

OUT:
She watched performers through the window at the local radio station, and she asked WINC (AM) disc jockey Jimmy McCoy if she could sing