re: Rock climbers, how do you

Hammering them into a crack is what I think. Notice in the picture that they are different shapes and sizes for different cracks.

I am assuming that while you set one, you are tied off below with a partner belaying you. I am not a rock climber but know a lot of trivia.

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I am assuming that while you set one, you are tied off below with a partner belaying you. I am not a rock climber but know a lot of trivia.

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That's exactly how it's done. The sport is all about trust. Trusting your partner, the equipment, & your ability. I can't climb anymore because I lost the ability.

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there is obviously going to be an extreme amount of torque on them so what keeps them from dislodging

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Climbers have to have a good understanding of physics. I typically used Wedges in places where you want more support if you fall like overhangs & slight inclines & spring loaded cams where the linear motion of a fall gets transfered to a more rotative motion. The technology has come a long way. I'm sure there is plenty of research 'on the line' to answer the specifics of what you want to know. As I mentioned before, it's about trusting the equipment & trusting your judgements. If you really want to see how big your huevos are, try anchoring a sleeping rig 200 feet up shear Rock cliff with nothing but a handful of cams and a few ropes. Definitely a unique experience.