BY: Vahur biography March 3, 1847 August 2, 1922 . He was eminent scientist, inventor, engineer and innovator . Was born in Edinburgh, Scotland . Two brothers Inventions The first practical telephone. First crude metal detector . Hydrofoils and Hydroplanes . Audiometer . He designed an airplane called the Silver Dart . Pictures Used sources http://www.google.ee/search?tbm=isch&hl=et&source=hp&biw=1280&bih=834&q=alexande http://inventors.about.com/library/inventors/bltelephone2.htm http://en.wikipedia.org/wiki/Alexander_Graham_Bell
Minu arust oli Alexander Graham Bell väga kasulik maailma arengule, sest tänu temale saame rääkida telefonidega. 7 6. Fotod Alexander Graham Bell koos oma laste ja naisega 8 7. Kasutatud kirjandus 1. http://en.wikipedia.org/wiki/Alexander_Graham_Bell 2. http://www.alexandergrahambell.org/ 3. http://inventors.about.com/library/inventors/bltelephone2.htm 4. ENE 9
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