Board Thread:Questions and Answers/@comment-6495574-20130226202748/@comment-174.31.69.73-20130308072126

Throw an iron pole (bunch of fences arranged vertically) above it and it'll magnetize them. When you're wearing metal armor and run into a magnetized iron pole, you'll go shooting upwards! When approaching a non-magnetized metal pole, you can hold [crouch] to slow your fall and avoid damage. You'll still fall faster than if you were going down a ladder.

When you're going up, holding [crouch] will slow your ascent. This can be useful because your momentum is retained at the top of the pole, and can give you enough height that you'll take some damage on landing.