Articles with unsourced statements from November 2020

Gerald_D._Kleczka

Gerald Daniel Kleczka (; November 26, 1943 – October 8, 2017) was an American politician and Democratic member of the United States House of Representatives from 1984 to 2005, representing Wisconsin's 4th congressional district. The district included the city of Milwaukee.

Leonard_Parker

Leonard Emanuel Parker (born Leonard Pearlman; in 1938) is a distinguished professor emeritus of physics and a former director of the Center for Gravitation and Cosmology at the University of Wisconsin–Milwaukee. During the late 1960s, Parker established a new area of physics—quantum field theory in curved spacetime. Specifically, by applying the technique of Bogoliubov transformations to quantum field theory with a changing gravitational field, he discovered the physical mechanism now known as cosmological particle production. His breakthrough discovery has a surprising consequence: the expansion of the universe can create particles out of the vacuum.
His work inspired research by hundreds of physicists and has been cited in more than 2,000 research papers; it was credited in the memoirs of Soviet physicist Andrei Sakharov and helped Stephen Hawking discover the creation of particles by black holes.Along with David Toms of Newcastle University, Parker co-wrote a latest addition to graduate-level textbooks on quantum field theory in curved spacetime, entitled Quantum Field Theory in Curved Spacetime: Quantized Fields and Gravity (Cambridge University Press, 2009, ISBN 978-0-521-87787-9).
He received his PhD from Harvard University in 1967. His advisor was Sidney Coleman.

Georges_Guynemer

Georges Guynemer (French pronunciation: [ʒɔʁʒ ɡinmɛːʁ], 24 December 1894 – 11 September 1917 MIA) was the second highest-scoring French fighter ace with 54 victories during World War I, and a French national hero at the time of his death. Guynemer's death was a profound shock to France.