Showing results for "Alexander Graham Bell" in Science & Technology Leaders

Edwin Grosvenor writes of Bell's other extraordinary inventions: the first transmission of sound over light waves, metal detector, first practical phonograph, and early airplanes, including the first to fly in Canada. He also examines Bell's humanitarian efforts, including support for women's suffrage, civil rights, and speeches about what he warned would be a "greenhouse effect" of pollution causing global warming.

The biography of the teacher of the deaf who, through his knowledge of music, human speech, and hearing, invented the telephone. Bell was a pioneer in many fields that aided communication over distances. He worked tirelessly to help the deaf communicate with others (even Helen Keller came to him for help). After the telephone, Bell invented the photophone (a device that uses a beam of light to transmit sound wirelessly), and developed phonographic sound recording methods.

A biography of the famed inventor of the phone. We learn the very personal motivation behind his work. We also come to understand that the information comes from the pen of one who made his observations while Bell was still alive - and still inventing. Narrated by Glenn Hascall.

Alexander Graham Bell, inventor of the telephone: Life and work in a short biography! Everything you need to know, brief and concise. Infotainment, education and entertainment at its best.

Alexander Graham Bell, Erfinder des Telefons: Leben und Werk in einer Kurzbiografie! Alles, was man wissen muss, kurz und knapp. Infotainment, Bildung und Unterhaltung vom Feinsten!

Las revoluciones industriales originaron multitud de avances tecnológicos y uno de los más revolucionarios fue la invención del teléfono de masas. Alexander Graham Bell (1847-1922), científico, inventor y logopeda escocés, es mundialmente conocido por contribuir a la popularización de la comunicación telemática. En 1876 patentó el teléfono en Estados Unidos y, a través de su compañía, implantó el teléfono como medio internacional de comunicación de masas.