A flywheel is a rotating mechanical device that is used to store rotational energy. Flywheels have an inertia called the moment of inertia and thus resist changes in rotational speed. The amount of energy stored in a flywheel is proportional to the square of its rotational speed.
Nevertheless, she was the tallest person in the world at the time. Yao Defen is considered the tallest living woman who was born in July 15, 1972 in Shucheng China . Yao measured 2.33 m (7 ft 8 in). Her gigantism is due to a tumor in her pituitary gland. The story of this woman giant began to spread rapidly after she went to see a doctor at the age of fifteen years for an illness.
World's tallest woman dies in China at age 39. FILE - In this May 12, 2006 file photo released by China's Xinhua News Agency, Yao Defen, right, who is 7 feet and 7 inches tall poses for a photo with her elder brother. BEIJING â The world's tallest woman has died in eastern China. She was 39. Chinese state media say Yao Defen died on Nov. 13 at her home in China's eastern province of Anhui. Guinness World Records in January 2010 had certified her as the world's tallest living woman at 7 feet and 7 inches.