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science · NASA

TB 26-09 Measured Hammer-Tap Inputs

Monday, November 2, 2026 · 8:47 PM

TB 26-09 Measured Hammer-Tap Inputs

For more information, contact Joel W. Sills, Langley Research Center, joel.w.sills@nasa.gov. Download the PDF version An instrumented hammer test does not require an idealized single half-sine waveform. When the complete force and response are measured accurately, crest ripples and separated contacts remain known inputs. Force shape changes excitation, but does not inherently invalidate the record. […]

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Astronaut and Earth

science · NASA

Astronaut and Earth

CSA (Canadian Space Agency) astronaut Joshua Kutryk is pictured during the Oct. 29, 2026, spacewalk. The International Space Station was soaring 267 miles above the South Atlantic

Read original: NASA