Alexander Graham Bell, the telephone, Michael Faraday, the electromagnetic induction, James Watt, the steam engine, Otto Wichterle, the soft contact lenses, Prokop DIviš, the lightning conductor, Marie Curie, polonium and radium, Wilhelm Roentgen, x-rays, Christopher Columbus, America, Johannes Gutenberg, the printing press, Charles Babbage, the first mechanical computer, Thomas A. Edison, the electric bulb, Tim Berners-Lee, the www, Alexander Fleming, penicillin.

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