Climbing
Ice screws and what good ice actually looks like
A screw in good ice is remarkably strong. A screw in bad ice is a decoration, and the difference is visible from the ground if you know the signs.
Topic
protection
Every Extreme Sports Adventures article tagged protection — 3 pieces across 2 sections.
Climbing
Placing gear in soft rock and other unhelpful geology
Protection is rated against steel test rigs. Real placements fail because the rock around them fails, and different rock fails in entirely different ways.
Gear & Kit
What a helmet is actually rated for, and what it is not
Helmets are tested against specific, narrow scenarios. Knowing which scenario your helmet was designed for tells you a great deal about when it will help you and when it will not.