In space, metals can weld together without heat or melting.
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Written by Joh Howes and Derek Muller
Yes, it’s pronounced Gemini (ee not eye) because that’s the way everyone pronounced this mission.
Thanks to Patreon supporters:
Bryan Baker, Donal Botkin, Tony Fadell, Saeed Alghamdi
Gemini IV transcripts: http://www.jsc.nasa.gov/history/mission_trans/gemini4.htm
Gemini IV recordings:
https://archive.org/details/Gemini4 (relevant clip is 1297 at about 2:00)
ESA cold welding recommendations:
Cold welding gold nanowire:
Music by Kevin MacLeod “Intrepid” http://www.incompetech.com