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Joined 2026-09-21 Message
Incoming links: Nancy Hall
Mach Number (NASA Glenn Research Center) 2026-10-18
Online text: www.grc.nasa.gov/www/k-12/airplane/mach.html
Issued and hosted by NASA Glenn Research Center. The footer credits Nancy Hall as editor and NASA official; no individual author byline is established. Last updated 13 May 2021, an online revision date.
Cited passages: speed-ratio definition; gas and temperature dependence; flight regimes; disturbance propagation and wind-tunnel similarity.
Nancy Hall 2026-10-18
Online text: www.grc.nasa.gov/WWW/K-12/airplane/tunvschlrn.html
Issued and hosted by NASA Glenn Research Center. The footer credits Nancy Hall as editor and NASA official; no individual author byline is established. Last updated 13 May 2021, an online revision date.
Cited passages: slit source, two concave mirrors, knife edge and recording device; density-gradient contrast; dimensional interpretation.