Reply to post:

NASA's hefty Martian rover will use an AI brain on a robot arm to map out signs of ancient life on Red Planet

james 68

I expect they're probably using a variety of 7075 Aluminium alloy (Aluminum for the FREEDOM!!!!! folk) which has a slightly higher thermal expansion then a lot of steels. But even so, I've seen it used as components in jet turbine housings and mounts and it sure didn't get anywhere near 13mm of expansion while in use, nevermind on a hot summer day.

I suppose they could be talking about total expansion by volume as opposed to directional. Would be a daft way to phrase it though.

POST COMMENT House rules

Not a member of The Register? Create a new account here.

  • Enter your comment

  • Add an icon

Anonymous cowards cannot choose their icon

Biting the hand that feeds IT © 1998–2021