the data. In the diagram above you can see what the information signal looks like before it’s been modulated and after. Spread spectrum first became well known way back in 1942 when it received U.S patent which was granted to Hollywood actress Hedy Lamarr and pianist George Antheil. It was described as a safe radio link to control torpedoes but the technology never became commercial available until the 1980s and is now used for applications that involve radio links in hostile environments. The spread
Heddy Lamar was an actress who was once called, "The most beautiful woman in the world," is credited with the invention of secret communications or Wi-Fi. Although she is the inventor of Wi-Fi, many people at the time doubted that it would work simply because of her looks. She had gotten a patent for the invention, but because the Navy said it would not work, she raised money for war instead. Future inventors would take Lamar's idea, and they would create Wi-Fi. Wi-Fi has not only changed my life
It is only when we lose them when they actually cross our thoughts. One of the most important and life changing inventions, in my mind, is wifi, which we immensely take for granted. Invented in its early stages (called frequency hopping) by Hedy Lamarr, wifi was barely used at all. She proposed to use it for the military, but even they denied its ability. Now, however, wifi is used everywhere, everyday. In fact, it is used so much, people begin to treat it as a necessity. I can say that I
Beauty in The Bluest Eye by Toni Morrison Some people will argue with you that there is always an ugly duckling somewhere in a family. I see it different, I see these people as unique. In Toni Morrison's book, The Bluest Eye there is the issue of being beautiful and ugly. In this essay I will discuss how Toni Morrison book The Bluest Eye initiates that during 1941 white was beautiful and black was ugly in the surrounding of two families. The issue of beauty versus ugliness is portraying through
Singer/actress Lena Horne's primary occupation was nightclub entertaining, a profession she pursued successfully around the world for more than 60 years, from the 1930s to the 1990s. In conjunction with her club work, she also maintained a recording career that stretched from 1936 to 2000 and brought her three Grammys, including a Lifetime Achievement Award in 1989; she appeared in 16 feature films and several shorts between 1938 and 1978; she performed occasionally on Broadway, including in her