Specification: The Space Race and the Dawn of the Space Age in the 20th Century refers to a historical period during the 20th century when the United States and the Soviet Union competed against each other in space exploration and technological advancements.

Mechanical Properties: The Space Race and the Dawn of the Space Age in the 20th Century involved the development and launch of various spacecraft and rockets. These vehicles had to possess mechanical properties such as structural integrity, stability, and maneuverability to withstand the harsh conditions of space and successfully carry out their missions.

Chemical Composition: The Space Race and the Dawn of the Space Age in the 20th Century involved the use of various chemical compositions for propellants and fuels used in spacecraft and rockets. Chemical reactions, such as the combustion of rocket fuels, played a crucial role in generating the necessary thrust to propel these vehicles into space and achieve orbit.
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