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2. Howard Head - Wikipedia

   en.wikipedia.org/wiki/Howard_Head

   Howard Head. Howard Head (July 31, 1914 in Philadelphia, Pennsylvania – March 3, 1991) was an American aeronautical engineer who is credited with the invention of the first commercially successful aluminum laminate skis [1] and the oversized tennis racket. Head founded the ski (and later tennis racquet)-making firm, Head, in 1950.

3. Head (company) - Wikipedia

   en.wikipedia.org/wiki/Head_(company)

   Head Sport GmbH is an American-Austrian manufacturing company headquartered in Kennelbach.It owns the American tennis racket brand Head. Head GmbH is a group that includes several previously independent companies, including the original "Head Ski Company" (founded in the United States in 1950); Tyrolia, an Austrian ski-equipment manufacturer; and Mares, an Italian manufacturer of diving equipment.

4. Prince Sports - Wikipedia

   en.wikipedia.org/wiki/Prince_Sports

   Head joined the Prince company in the early 1970s and developed the company's signature oversized tennis racket. [1] Although the Prince Classic aluminum racket was the first oversized racquet to be patented, the Bentley Fortissimo preceded the patent by two years, causing Germany to invalidate the patent.

5. Racket (sports equipment) - Wikipedia

   en.wikipedia.org/wiki/Racket_(sports_equipment)

   A racket or racquet[ 1] is an item of sporting equipment used to strike a ball or shuttlecock back-and-forth in games such as tennis, badminton, squash, racquetball and padel. The typical basic structure of a racket consists of a widened distal end known as the head (which presents a flattened firm surface designed to strike the ball or ...

6. Strings (tennis) - Wikipedia

   en.wikipedia.org/wiki/Strings_(tennis)

   Strings (tennis) In tennis, the strings are the part of a tennis racquet which make contact with the ball. The strings form a woven network inside the head (or "hoop") of the racquet. Strings have been made with a variety of materials and possess varying properties that have been measured, such as dynamic stiffness, tension retention, thickness ...

7. Tennis racket theorem - Wikipedia

   en.wikipedia.org/wiki/Tennis_racket_theorem

   The tennis racket theorem or intermediate axis theorem, is a kinetic phenomenon of classical mechanics which describes the movement of a rigid body with three distinct principal moments of inertia. It has also dubbed the Dzhanibekov effect , after Soviet cosmonaut Vladimir Dzhanibekov , who noticed one of the theorem's logical consequences ...