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30 Minute Expert15


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30 Minute Expert15

  1. 1. Here are the alliances in WWII. Adolf Hitler tried to take over the world because he Ideally wanted to be powerful. He wanted to eliminate Jews and wanted only people with (blond hair and blue eyes) who were part of a race he created called Aryan.
  2. 2. The Slinky was invented in 1945 by Richard and Betty James. quot;What walks down stairs, alone or in pairs, And makes a slinkity sound? A spring, a spring, a marvelous thing, Everyone knows it’s Slinky… It's Slinky, it's Slinky, for fun it's a wonderful toy http:/ /en.w ikiped It's Slinky, it's Slinky, it's fun for a girl and a /wiki/ Slink y boyquot; - Advertising Jingle
  3. 3. Microwave Oven It was invented by Percy LeBaron Spencer in 1946. Percy was testing the invention of a magnetron (a new vacuum tube) and he discovered that the candy bar he had in his pocket had melted. He experimented with popcorn by the tube and it popped. This started the idea that quot;if a candy bar can be melted and popcorn can be popped that quickly, then why couldn't other foods?quot; Building off of this, he build the first microwave that was a metal box with an opening into which he fed microwave power. The first microwave was 6 feet tall, 750 pounds, and $5,000.