robert livingston stevens

listen to the pronunciation of robert livingston stevens
الإنجليزية - الإنجليزية
born Oct. 18, 1787, Hoboken, N.J., U.S. died April 20, 1856, Hoboken U.S. engineer and ship designer. The son of John Stevens, he tested the first steamboat to use screw propellers. He designed the railway T-rail in 1830, and later the railroad spike. He found that rails laid on wooden ties, with crushed stone or gravel beneath, provided a roadbed superior to any known before; his construction remains in universal use
robert livingston stevens

    الواصلة

    Rob·ert Li·ving·ston Ste·vens

    التركية النطق

    räbırt lîvîngstın stivınz

    النطق

    /ˈräbərt ˈləvəɴɢstən ˈstēvənz/ /ˈrɑːbɜrt ˈlɪvɪŋstən ˈstiːvənz/
المفضلات