DEFINITION of 'Industrial Revolution'. A period of major industrialization that took place during the late 1700s and early 1800s. The Industrial Revolution, beginning in Great Britain, quickly spread throughout the world.uring the Industrial Revolution, workers came to cities in droves to look for employment in the new factories. Because the industrial system was new, there were no experienced workers, and thus everyone had an opportunity to find employment. Technological advancement followed, which increased overall production.
Gestation. Giraffes are pregnant for a period between 14 and 15 months, or 453 to 464 days, one of longest gestation periods in the animal kingdom. Giraffes usually give birth to one offspring at a time, although twins are born occasionally.Because the gestation period is so long, the giraffe won't give birth to another baby for 16 months or more.iraffes usually give birth to one offspring at a time, although twins are born occasionally. Because the gestation period is so long, the giraffe won't give birth to another baby for 16 months or more.
Baby giraffes, known as calves, typically weigh 100 to 150 lbs. (45 to 68 kilograms) and are about 6 feet (1.8 meters) tall when they're born, according to Animal Planet. Giraffes give birth standing up, and the baby falls â head and hooves first â from a height of 6 feet, Holloway said. This dramatic entrance breaks the amniotic sac, a fluid-filled pouch that protects the fetus in the womb, severs the umbilical cord, and forces the calf to start breathing on its own.