... that the United States would supply Great Britain with Polaris missiles as a contribution to Britaina#39;s nuclear arsenal. ... miles per hour. successfully reentered the atmosphere while subjected to a temperature of 5000AdF., pressure of 900 pounds per ... Two primary purposes were served by these flights: the first determined that an astronaut could manually control the ... The first test of a version of s acecraft to be used in reaching the moon was ma e in August, 1961, when Ranger I wasanbsp;...
|Title||:||The National Cyclopædia of American Biography|