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Churyumov-Gerasimenko tour performing 42 low deltaV asteroid flybys returning to Earth - YouTube
https://www.youtube.com/watch?v=HwBdo5Nr3Jw
This low thrust tour designed by the University of Jena visits the comet Churyumov-Gerasimenko. The spaceship performs 19 low deltaV asteroid flybys before i...
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Retro Tech: The Wire Recorder - YouTube
https://www.youtube.com/watch?v=90ihiTwJPCc
The Wire Recorder was expected to take over the world but disappeared almost overnight. In this video I take a look at this now largely forgotten technology ...