In Space, No One Can Stop You From Welding

The welding process usually involves pretty extreme levels of heat. But it turns out that in the cold vacuum of space, metals can weld together... automatically.

Hosted By: Hank Green

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Sources:
http://esmat.esa.int/Publications/Published_papers/STM-279.pdf
https://sites.psu.edu/siowfa15/2015/10/23/cold-welding%EF%BC%8D%EF%BC%8Dspace-operations-nightmare/
https://core.ac.uk/download/pdf/42768209.pdf
https://trs.jpl.nasa.gov/handle/2014/32404
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https://chem.libretexts.org/Courses/Bellarmine_University/BU%3A_Chem_103_(Christianson)/Phase_3%3A_Atoms_and_Molecules_-_the_Underlying_Reality/9%3A_Chemical_Bonding/9.5%3A_Metallic_Bonding
https://www.feynmanlectures.caltech.edu/I_12.html
http://everyspec.com/ESA/download.php?spec=ECSS-E-ST-33-01C.048198.pdf
https://www.laserfocusworld.com/optics/article/16546805/optical-fabrication-optical-contacting-grows-more-robust
https://web.archive.org/web/20090331235008/http://www.precisionphotonics.com/vitem_axpd.asp?id=16&itemtype=Technicalpapers
https://www.nature.com/articles/nnano.2010.4
https://www.twi-global.com/technical-knowledge/faqs/what-is-cold-welding
https://link.springer.com/chapter/10.1007/978-94-007-0874-7_1
https://royalsocietypublishing.org/doi/10.1098/rspa.1936.0151
https://iopscience.iop.org/article/10.1088/1464-4258/3/1/314
https://asmedigitalcollection.asme.org/tribology/article-abstract/103/2/169/423515/Friction-The-Present-State-of-Our-Understanding
https://www.sciencedirect.com/science/article/pii/B9780121038021500113
https://royalsocietypublishing.org/doi/abs/10.1098/rspa.1974.0167
https://www.britannica.com/technology/welding

Images:
https://commons.wikimedia.org/wiki/File:Galileo_spacecraft_leaves_the_Orbiter.jpg
https://commons.wikimedia.org/wiki/File:Galileo_in_1983.jpg
https://www.storyblocks.com/video/stock/close-up-slow-motion-welding-of-a-metal-part-in-an-auto-repair-shop-bpdt8rtrokn60ew0l
https://www.istockphoto.com/photo/worker-welding-parts-of-stell-construction-gm678821660-124372509
https://www.istockphoto.com/photo/old-stainless-steel-spoons-background-gm1168849327-322882976
https://www.storyblocks.com/video/stock/machine-workpieces-metallurgical-plant-hiwbmehbinq614w8
https://commons.wikimedia.org/wiki/File:Galileo_spacecraft_%26_IUS_deployment_sequence_in_OV-104%27s_payload_bay_on_STS-34_(S34-71-000AK).jpg
https://www.istockphoto.com/photo/abstract-background-gm495067894-77795073
https://www.istockphoto.com/photo/abstract-sparks-background-gm1251201142-365075401