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At the time magnetic disk recorders could only store 30 seconds of slow-motion video, a lot less than the 143 minutes Armstrong and Aldrin walked on the surface.—Encyclopedia Britannica,
14 May 2026 And a computer itself can act as a microphone: In a 2019 study researchers developed software that detected and analyzed how ambient sound waves jiggled a hard drive’s read head over its magnetic disk—and could thus effectively record conversations taking place near the machine.—
Sophie Bushwick,
Scientific American,
6 Oct. 2021 At the time of the broadcast, magnetic disk recorders capable of storing slow motion footage could only capture 30 seconds in total, for a playback of 90 seconds of slow motion video.—
Howard Berry,
Quartz,
18 July 2019 Shrunken Grains: Five years ago, the smallest grains on a magnetic disk measured 9.5 nanometers (nm) in diameter (left).—IEEE Spectrum,
5 Jan. 2019 To do this, the good frame was recorded onto a magnetic disk then replayed five times.—
Amy Shira Teitel,
Discover Magazine,
7 Sep. 2017