** 1933 **
Hitler becomes chancellor of Germany
Albert Einstein moves to America
In 1936,
Nomi and her immediate family move
to Palestine
Five
short years later the nylon is invented…
Nylon is one of the most commonly used synthetic, or man-made, fibers. It has proved to be an ideal
replacement for most uses of silk. (Silk is a polymer which is a vital parts of many living organisms, a natural substance composed of long
chains of molecules.) Nylon is a synthetic polymer, it's basis is coal or petroleum in a solution from which filaments, fibers, or sheets can
be drawn. In 1934 Carothers from Du Pont came up with a nylon-6,6 that did not melt in low heat. It was put on the market in as artificial silk. The name nylon was given to it in 1940. Its first most
common use was in women's stockings, which were soon called nylons. In the first year of manufacture the company sold 64 million pairs. Then American
entered World War II, and nylon was quickly adapted for use in parachutes.
When
Nomi was only 11…
The first successful helicopter was designed and built by Igor Sikorsky.
Although developed after the airplane, the helicopter grew out of an idea
that is several hundred years old. In the late Renaissance, Leonardo da
Vinci drew (left) up a plan for such a flying machine. In the early 20th
century experiments with vertical flight failed for lack of a powerful
enough engine. Once the principle was established, helicopter design and
development progressed rapidly. By the 1960s it had become one of the most
versatile weapon of war.
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