The only things you'll ever need...
I’m going to cheat a little and go with two inventions: WD-40 and duct tape. With nothing more than these two items, you can fix any mechanical problem. If it doesn’t move and it should, go with the WD-40; if it moves and it shouldn’t, tape it up. I know I never embark on a trip in to space without a healthy supply of each…
Submitted by: Maeve Regan
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