Reputation
11,856
Next tag badge:
111/100 score
18/20 answers
Badges
32 71
Impact
~211k people reached

Dec
17
comment How much distance is there between True North and Magnetic North Poles?
The distance in kilometers is not what's really relevant for navigation. For navigation, we normally care about the angular difference. That can be as much as 180 degrees in northern Canada.
Dec
17
comment What are the properties I should look for in running shoes?
related: outdoors.stackexchange.com/questions/5387/…
Dec
16
awarded  Nice Answer
Dec
16
comment How do I rescue someone out of a crevasse?
Your answer focuses completely on hauling the victim out with a pulley, but that's usually a last resort. I've written an answer that's more of a global overview and that hopefully complements yours.
Dec
16
answered How do I rescue someone out of a crevasse?
Dec
9
comment What is a safe distance for large, non-predatory wildlife?
Random data point: There are (non-indigenous) bison on Catalina Island, which has a trail system running from one end of the island to the other. I hiked the trail, and tried to follow advice to keep a certain distance from the bison, but it just wasn't possible sometimes, because there wasn't enough room. They basically just looked at me as I walked past.
Dec
8
comment Protection from rain - running vs. walking
As a practical matter, what we care about is not the number of drops that hit us, it's our ability to maintain our body temperature. When you run, you generate more body heat.
Dec
8
comment What are the dangers of descending/rappeling very quickly?
I see, he was giving a fireman's belay. But I still don't think this has much to do with the safety concerns involved in the question.
Dec
7
comment What are the dangers of descending/rappeling very quickly?
It seems like you're mixing up two different things. Taking a fall with a belayer to catch you is a completely different thing than rappelling, with qualitatively different safety concerns.
Dec
7
comment What are the dangers of descending/rappeling very quickly?
The heat is distributed over the whole rope, so it seems unlikely to me that it would burn through. A very, very common reason for fatal accidents is rappelling off the ends of the rope. It seems likely that going fast would increase your chances of not noticing that this was going to happen until too late. Even if you are in the habit of tying stopper knots, there may be times when you forget. Another possible problem is getting banged around, which causes you to lose your grip on the brake strand, causing death unless you use a Prusik backup. Maybe more likely if you're going fast.
Dec
7
revised Crossing a barbed wire fence
spelling
Dec
2
comment What micron level is needed to properly filter viruses from water?
"Virus" originally meant anything that could cause disease. The modern usage "virus" is an abbreviation of "filterable virus," which means something that can still cause disease after passing through a filter. In other words, the fact that you can't filter them out was originally the definition of a virus. If you want to kill viruses, you can use UV (steripen) or halogens.
Dec
2
comment Keeping safe distance while scrambling
@ShemSeger: In my experience there is no hard and fast rule about who goes in front unless it's roped climbing, in which case you're certainly right that the stronger climber would usually lead (especially if the other climber doesn't lead, or the lead would be beyond that person's ability to climb safely).
Dec
1
revised Keeping safe distance while scrambling
added 190 characters in body
Dec
1
answered Keeping safe distance while scrambling
Dec
1
revised Is there any practical use for a grappling hook?
diction
Dec
1
comment Why are these acceptable and safe anchors?
Not every part of the system is expected to be redundant. The rope isn't redundant. The waist belt of your harness isn't redundant. We often tie in to an anchor using a non-redundant locking biner. I don't bother with redundancy when using a big, healthy, well-rooted tree as an anchor. In the case of these rings, they are very easy to inspect visually. That's different from a bolt, where I can't necessarily tell if the bolt is secure in the rock.
Nov
27
comment Any dangerous animals attracted to fire?
Teenagers. They'll walk up to your campfire and ask if you're getting service.
Nov
21
comment Is listening to music on earphones while hiking safe enough?
Hiking makes you feel anxious??? It's the most relaxing activity I do. I just find it alienating to pass people on the trail who have their earbuds plugged in, are tuned out of their environment, and won't return a friendly greeting.
Nov
20
comment Efficient technique for handling trad gear?
I want to see the video of someone climbing 5.14 trad.