February 1958
From The Space Library
NACA Langley's PARD conceived and placed in operation the "opposed gun" technique for studying projectile impacts.
“Exploring Our Neighbor World, the Moon” article appears in National Geographic Magazine
NACA Langley's PARD conceived and placed in operation the "opposed gun" technique for studying projectile impacts.
“Exploring Our Neighbor World, the Moon” article appears in National Geographic Magazine