QuantumBrick‭

I have read some posts here regarding the expiration dates of climbing material, especially trad gear. Friends and nuts (as all climbing equipment) have a lifespan of 10 years according to all manu...

3 answers  ·  posted 8y ago by QuantumBrick‭  ·  last activity 7y ago by System‭

The answer is in this video: https://youtu.be/seCiupa4I6U?t=1m2s I'm not sure if it's the same traverse as the OP posted, but I'd bet on it. The thing that looks like a biner between the columns i...

posted 7y ago by QuantumBrick‭  ·  last activity 7y ago by System‭

I just got a sample of Petzl's new assisted braking device, the Grigri+. I must admit I look at it with a lot of disdain, mostly because It's bulkier than the Grigri 2; It's heavier than the Grig...

2 answers  ·  posted 7y ago by QuantumBrick‭  ·  last activity 7y ago by System‭

Everyone who has taught climbing for a while has noticed that women are better beginner climbers than men, mostly because they're lighter, have smaller hands (so can grab smaller holds more comfort...

posted 5y ago by QuantumBrick‭  ·  last activity 5y ago by System‭

The figure-8 knot is characteristically hard to untie after falls. What many climbers do is, once the knot is done, to come back with the end of the rope inside the last bight - this is a sort of Y...

posted 5y ago by QuantumBrick‭

Shouldn't be less efficient at all - or at least, approximately as efficient. Solar panels generate energy utilising the band-gap structure inherent to semiconductor materials. This means that, to...

posted 7y ago by QuantumBrick‭  ·  last activity 7y ago by System‭

Would you start playing the clarinet on a bus? It's also noisy, somehow. People also wouldn't expect complete silence. Would you be the one to guarantee there is no possibility of silence at all? ...

posted 6y ago by QuantumBrick‭

Adding weight is an extremely efficient way to strengthen core, leg and back muscles - and also your fingers, depending on what kind of training you are doing. I have been training with extra weigh...

posted 6y ago by QuantumBrick‭

If you can get to the person, a rescue operation is 90% done. A danger zone is a danger zone because spotting someone is often impossible, let alone getting near them. I never heard of anyone pass...

posted 5y ago by QuantumBrick‭  ·  last activity 5y ago by System‭

Although the question asks specifically about high altitude camps, my answer is about camps high on a wall, i.e. on big walls, because that's all I know. I also believe portaledge camps are unbelie...

posted 5y ago by QuantumBrick‭

It's a matter of practice, but also a matter of feel: When stepping with the front of your foot you have a smaller contact area, so the pressure is higher than using the whole foot. This increases ...

posted 5y ago by QuantumBrick‭

Ascending a fixed rope using an ATC guide in lead mode is totally valid, but it is not the "quickest" method (IMHO). Usually what is taught in basic climbing and self rescue courses is to ascend wi...

posted 5y ago by QuantumBrick‭  ·  last activity 5y ago by System‭

I have used the Mammut Smart Alpine with many biners, including the GridLock. My impression is that, while the Smart does have the tendency to get caught and stuck when the rope runs over the lock ...

posted 5y ago by QuantumBrick‭

Every time a climber finds a way to place more fingers on a hold, he/she will. If he/she is not using all fingers, it's because: They're training their fingers to get stronger, It's impossible t...

posted 5y ago by QuantumBrick‭

Imagine two strings of different densities, which are tied together at a point. Suppose you hit the string with the largest density several times with your hand, generating a sequence of traveling ...

posted 5y ago by QuantumBrick‭