Mobile balers, machines which gather and bale hay in one process, were first developed around 1940. The first balers produced rectangular bales small enough for a person to lift, usually between 70 and 100 pounds (32 and 45 kg) each. The size and shape made it possible for people to pick bales up, stack them on a vehicle for transport to a storage area, then build a haystack by hand.
From Wikipedia, the free encyclopedia. An F1 hybrid (or filial 1 hybrid) is the first filial generation of offspring of distinctly different parental types. F1 hybrids are used in genetics, and in selective breeding, where it may appear as F1 crossbreed. The term is sometimes written with a subscript, as F1 hybrid. The offspring of distinctly different parental types produce a new, uniform phenotype with a combination of characteristics from the parents.
Best Answer: The Interbellum Generation-those born at the beginning of the 20th century and who grew up during the 1920s. The Greatest Generation-includes the veterans of World War II. They were born between World War I and the mid-1920s, coming of age during the Great Depression.The Silent Generation-those who were too young to have fought in World War II.he Greatest Generation-includes the veterans of World War II. They were born between World War I and the mid-1920s, coming of age during the Great Depression. The Silent Generation-those who were too young to have fought in World War II.