Computer science Journey into information theory Journey into Information Theory 1 program 9 videos 1 talkthrough Explore the history of communication from signal fires to the Information Age 3:26 What is information theory? A broad introduction to this field of study 7:20 Origins of written language 9:23 History of the alphabet The origin of letters 3:56 Ptolemaic: Rosetta Stone Rosetta Stone, 196 B.C.E., granite, 114.4 cm x 72.3 x 27.9 cm or 45 x 28.5 x 11 inches, Ptolemaic Period (British Museum, London). Speakers: Dr. Beth Harris and Dr. Steven Zucker 5:57 Source encoding Introduction to coding theory! 9:20 Visual telegraphs (case study) The history of visual telegraphs Decision tree exploration Play with the shutter telegraph! 9:02 Electrostatic telegraphs (case study) Long before the internet people thought about sending information along wires using static electricity. 6:26 The battery and electromagnetism The key technologies in our story. 9:59 Morse code and the information age Electric Telegraphs and developments leading to Morse Code. Morse code Exploration Click the handle of telegraph key to send dot or dash. To send a dot = 0.2 seconds. To send a dash = 0.6 seconds. Can you spell your name?