Chapter One: Deadly Friend, you are small, you are still prescribed bedtime parents age, you want across the bedroom at night and chat based Friends of the night, but you across the street, this time you have on hand a flashlight, maybe Do you like puzzle game, you can use to transmit signals, such as a flashes once, and so on, Z flash 26 times.
But such successful spell a word too complicated.
You think Morse code, ex right. Figure I left it out. Morse code most commonly used letters are always relatively simple, such as A, T, but the most unusual is very long, but overall are 1-4 point plan, numbers can be expressed, but it is five characters, punctuation is the interval between the two is zoned six characters, a designated interval between the letters, words. The most famous Morse code SOS is three point three three-point plan.
Chapter II: coding and combinations, draw a dot can represent two code words, two dot-dash represents four codewords, and so on, six-point plan represents sixty-four yards words. , It can be represented by a tree diagram. , Portfolio analysis nothing to talk about.
Chapter: Braille Braille and binary code, the code word 2 * 3, and bumps represented by a total of 64 codewords, 25 (missing W (French)) represents a - z, aj with 1,2,4 , 5 bumps, bumps KT spend 1,2,3,4,5, uv spend 1,2,3,4,5,6 bumps, it was improved in order to improve the speed of the Braille code word occurs independently represent Common word, taking AJ, "down" point, represented by 2,3,5,6 punctuation point, said characters and numeric identifier is a number or letter following the identifier.
Chapter 4: flashlight, basic physics, atom: neutrons, protons, electrons. Current positive to negative, electrons from atoms to the other atoms, forms a current