1. Mesin Uap: James Watt
2. Mesin Diesel: Rudolf Diesel
3. Mesin Cetak: Johannes Guttenberg
4. Radio: C. Marconi
5. Dinamo: Michael Faraday
6. Bola Lampu: Thomas Alva Edison
7. Pesawat: Wilbur & O. Wright
8. Mesin Hitung: Blaise Pascal
9. Kapal Selam: Cornelius Van Drebbel
10. Batu Baterai: Volta
Friday, November 25, 2011
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