Submitted by khenkes on Tue, 02/11/2020 - 18:53
Submitted by khenkes on Tue, 02/11/2020 - 18:53
Submitted by khenkes on Tue, 02/11/2020 - 18:53
Submitted by khenkes on Tue, 02/11/2020 - 18:53
Submitted by khenkes on Tue, 02/11/2020 - 18:53
Submitted by khenkes on Tue, 02/11/2020 - 18:53
Submitted by khenkes on Wed, 10/02/2019 - 15:46
A biography which gives an historical basis for the science of astronomy.
Submitted by khenkes on Wed, 10/02/2019 - 15:46
Covers observations and theories leading to Ro?ntgen's work, biographical information about the German physicist, Ro?ntgen's discovery and further research, and improvements and applications of the X ray after the appearance of Ro?ntgen's papers.
Submitted by khenkes on Wed, 10/02/2019 - 15:46
Submitted by khenkes on Wed, 10/02/2019 - 15:46
A biography of the two brothers, unknown bicycle repairmen, who built and flew the first powered airplane in 1903, which concentrates on the contributions to the history of flight.
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