It must be Summer there... apparently it gets up as high as +20C (68F) on Mars. Unfortunately the lows around -150C (-238F) are uninhabitable.
Around here (Northern BC, Canada) it often gets to -40C (also -40F), and nothing works well. Plastic items often shatter, tires get flat spots on the bottom. I can't imagine how they make Mars Rovers and stuff like that, that actually work at -150C. They must use totally metals, and talc as a lubricant.
Engine oil and grease are ineffective below -35C (-30F). I often wondered how they lubricate things in space.
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Today's Featured Article - Talk of the Town: Best Tractor? - by Staff. This recent discussion on the Tractor Talk discussion board here at the on-line magazine drew quite a bit of response. We see the question of "Which tractor is best for me?" asked quite often. We thought you might find the responses interesting. As always, the names of the people participating in the discussion have been left out - we did not request their permission to reprint their names in this article. However you can find this discussion in it's entirety in the Tractor Talk archives.
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