On August 21, 1957 the Soviet intercontinental ballistic rocket R-7 was successfully launched. R-7 was launched fro… https://t.co/dY1aTrxYRM
RT @ummodern: Putting the final touches on a paper involves moving a passage between two different sections multiple times only
July 31, 2021
RT @ummodern: Putting the final touches on a paper involves moving a passage between two different sections multiple times only to put it b…