lecture05: Entropy

• https://xkcd.com/936/
• http://en.wikipedia.org/wiki/Electrical_telegraph
• http://www.nadcomm.com/timeline.htm
• http://en.wikipedia.org/wiki/Timeline_of_information_theory
• http://en.wikipedia.org/wiki/History_of_entropy
• http://www.historyofinformation.com/index.php?category=Communication+F+Information+Theory