Editing Mars (section)

==Wire Windings==
[http://chemistry.about.com/od/elements/f/What-Is-The-Most-Conductive-Element.htm What Is the Most Conductive Element?]

1	silver
2	copper
3	gold
4	aluminum
5	zinc
6	nickel
7	brass
8	bronze
9	iron
10	platinum
11	carbon steel
12	lead
13	stainless steel

[http://www.achrnews.com/articles/83673-copper-vs-aluminum-windings-in-motors Copper Vs. Aluminium Windings in Motors] - Aluminium oxidixes so the connections must pierces the alunimum and be pressurised to stop oxygen getting it. How would very low levels of oxygen in Mars Atmosphere effect this? aluminium requires more turns and/or a larger diameter wire, may not be economically feasible (lower efficiency).

[http://www.torquenews.com/119/auto-industry-looking-copper-alliance-alternative-rare-earth-materials Auto industry looking to Copper Alliance as alternative to rare earth materials] - EVs uses rare earth metals. Are they on Mars? Tesla mentioned.

[http://spectrum.ieee.org/nanoclast/semiconductors/nanotechnology/carbon-nanotube-yarns-set-to-replace-copper-windings-in-electric-motors Carbon Nanotube Yarns Could Replace Copper Windings in Electric Motors] - Carbon seems unlikely on Mars... Unless extracted from the atmosphere.

[https://www.reddit.com/r/askscience/comments/3onixa/if_silver_is_the_most_conductive_element_why_dont/ If Silver is the most conductive element, why don't we use it in electronics as opposed to Copper and Gold?] - Silver best conductor, but expensive and oxidises easily, making it unsuitable for uses where it's exposed to oxygen or large amounts are required.
Gold doesn't oxidise*, but is expensive, which is why it's often used as a coating for electronic connections like HDMI cables.