[PAR] [TLE] Robert J. Van de Graaff [SEP] Robert Jemison Van de Graaff (December 20, 1901 – January 16, 1967) was an American engineer, physicist, and noted for his design and construction of high-voltage Van de Graaff generators.  He taught at Princeton University and Massachusetts Institute of Technology. [PAR] [TLE] John G. Trump [SEP] John George Trump (August 21, 1907 – February 21, 1985) was an American electrical engineer, inventor, and physicist.  He was a recipient of U.S. President Ronald Reagan's National Medal of Science, and a member of the National Academy of Engineering.  John Trump was noted for developing rotational radiation therapy.  Together with Robert J. Van de Graaff, he developed one of the first million-volt X-ray generators.  He was the paternal uncle of U.S. President Donald Trump.
[PAR] [TLE] Robert J. Van de Graaff [ SEP ] Robert Jemison Van de Graaff ( December 20 , 1901 – January 16 , 1967 ) was an American engineer , physicist , and noted for his design and construction of high - voltage Van de Graaff generators . He taught at Princeton University and Massachusetts Institute of Technology . [PAR] [TLE] John G. Trump [ SEP ] John George Trump ( August 21 , 1907 – February 21 , 1985 ) was an American electrical engineer , inventor , and physicist . He was a recipient of U.S. President Ronald Reagan 's National Medal of Science , and a member of the National Academy of Engineering . John Trump was noted for developing rotational radiation therapy . Together with Robert J. Van de Graaff , he developed one of the first million - volt X - ray generators . He was the paternal uncle of U.S. President Donald Trump .
What was the contribution made by de Graaff to the technology John Trump and Robert Van de Graaff developed together?
What was the contribution made by de Graaff to the technology John Trump and Robert Van de Graaff developed together ?
high-voltage Van de Graaff generators
high-voltage Van de Graaff generators