Wernher von Braun  was a German born rocket scientist, engineer, space architect,
and one of the leading figures in the development of rocket technology in Germany  
and the United States during and after World War ll. A former member of the Nazi  
Party and a commissioned SS officer, von Braun would later be regarded as the 
preeminent rocket engineer of the 20th century in his role with the U.S. civilian
space agency NASA. In 1955, ten years after entering this country, Von Braun
became a naturalized citizen. He lead the development of the Saturn V booster
rocket that helped land the first men on the Moon in 1969. Von Braun received the
National Medal of Science in 1975. He died on June 16, 1977 of pancreatic cancer 
at the age of 65. 

Alexander Graham Bell  was born in Edinburgh, Scotland and was a renowned
scientist, inventor, and engineer who is credited with inventing the first practical
telephone. In 1888, Alexander Graham Bell became one of the founding members
of the National Geographic Society.

Bell with his prototype model of the telephone

Robert Fulton, an  American engineer and inventor is credited 
with developing the first commercially successful steamboat. 

 
                                              The Clermont