History & Mysterie

History of WiFi     In 1971, the University of Hawaii accomplished the primary wireless communications of data exchange ever endeavoured without a fawning or associated cable. The group, driven by design and computer researcher Norman Abramson, utilized a modern innovation called Ultra Tall Recurrence radio waves (UHF) to effectively interface seven computers, spread over diverse Hawaiian islands.  The Federal Communications Commission made an unprecedented move in 1985: three bands were opened for unlicensed use, which means that any organization or entrepreneur could communicate about them. The genuine move happened within the late 1990s when Vic Hayes — known to numerous as the “father of WiFi” — introduced the concept of a universal standard for remote organizing, known as the IEEE 802.11 standard.   Hayes and his team at the Institute of Electrical and Electronics Engineers ( IEEE) in 1999 updated the WiFi standard to 802.11b. This essentially expanded...

 History of Headphones       Nathaniel Baldwin was a creator of today’s modern headset taken by an in 1910. The predecessor to modern headphones, his invention benefited from having the speakers placed over the ear, blocking out background noises and enhancing the sound from speakers. The modern headsets were John C. Koss and Martin Lange, again from America. They developed the world’s first stereo headphones driven by a passion for music and great sound releasing the Koss SP3 stereo headphones in 1953.       These early models lacked padding and were often uncomfortable to wear for long periods. Their impedance varied; headphones used in telegraph and telephone work had an impedance of 75 ohms. Those used with early wireless radio had more turns of finer wire to increase sensitivity. The impedance of 1000 to 2000 ohms was common, which suited both crystal sets and triode receivers. Some very sensitive headphones, such as those manufa...

History of Artificial Intelligence:           In the 1940s and 50s, a handful of scientists from a variety of fields began to discuss the possibility of creating an artificial brain. The field of artificial intelligence research was founded as an academic discipline in 1956.        From 1957 to 1974, AI flourished. Computers could store more information and become faster, cheaper, and more accessible. Machine learning algorithms also improved and people got better at knowing which algorithm to apply to their problem. Early demonstrations such as Newell and Simon’s General Problem Solver and Joseph Weizenbaum’s ELIZA showed promise toward the goals of problem-solving and the interpretation of spoken language respectively. These successes, as well as the advocacy of leading researchers, convinced government agencies such as the Defense Advanced Research Projects Agency to fund AI research at several institutions.       ...

History of Religion:          P eriod of religious history begins with the invention of writing about 5,220 years ago (3200 BCE). Writing played a major role in standardizing religious texts regardless of time or location, and making easier the memorization of prayers and divine rules. The concept of "religion" was formed in the 16th and 17th centuries, the word religion as used in the 21st century does not have an obvious pre-colonial translation into non-European languages.            The 19th century saw a dramatic increase in knowledge about a wide variety of cultures and religions, and also the establishment of economic and social histories of progress. Usually, religions were divided into stages of progression from simple to complex societies, especially from polytheistic to monotheistic and from extempore to organized.                     The...