7,183 reputation
1537
bio website lightandmatter.com
location
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visits member for 1 year, 10 months
seen 8 hours ago

I live in LA and enjoy day hikes, backpacking, rock climbing, and mountaineering.


8h
comment What knot is this one? What are its purposes?
This looks similar to the knot Chris Mendez proposed. It's hard to tell from the photo, but I don't think it's the same knot.
2d
comment How to select a good GPS receiver?
I don't believe the claim that some handheld GPS units have smaller errors than others. Do you have any documentation for this claim?
Jan
21
comment Is there a technique to snow-shoeing besides “walk on the snow”?
@ShemSeger: Those aren't front-points. Front-points on crampons are the claws that stick out horizontally from your toes.
Jan
20
comment Is there a technique to snow-shoeing besides “walk on the snow”?
+1, but poles are not necessary for snowshoeing.
Jan
14
comment Numbers on down jackets
@shimizu: There are EN ratings for sleeping bags, but as far as I know, there is no similar system for jackets. You could get a pretty good idea, though, by multiplying the fill power by the total weight. That would give you a measure of the jacket's volume.
Jan
13
comment Does cotton really kill?
For someone who's sensitive to lanolin, another option is alpaca.
Jan
9
comment Acclimatization strategies
@EverythingRightPlace: I was referring to the caption on the graph for Nanga Parbat in the House and Johnston book. That was in answer to your question in the final sentence of your first comment.
Jan
8
comment Quality/robustness of avalanche shovels
IMO it's a bit of a delusion, all of this business about taking avalanche courses and preparing for how to survive an avalanche with transceivers, shovels, etc. If someone is buried in an avalanche, they're likely to die. The snow partially melts from friction and then sets back up as hard as concrete. You can't dig a hole in it to get your buddy out. If you want to avoid dying in an avalanche, you need to practice avalanche avoidance, not avalanche safety.
Jan
6
comment How should I correctly use poles and other equipment to avoid back pain on long hikes?
I never understood the appeal of trekking poles until I started carrying 80+ lbs packs down into the bottom of the Grand Canyon for a living. This is a totally atypical example. For the vast majority of people, carrying 80 lbs would just be a silly mistake, and for them, poles are an impediment rather than an aid. The OP is asking about how to accommodate a specific back injury, which again is a very specific situation. Poles are not a general-purpose tool. They're highly specialized, and in most cases using them is just a matter of following a fad.
Jan
6
comment Why are backpack waist straps so long?
I always cut off the ends of the straps when I buy a pack.
Jan
5
comment Acclimatization strategies
@EverythingRightPlace: The caption says they had one period of bad weather on the Nanga Parbat climb. They also show other graphs of 8000 m peaks (Gasherbrum and Kanchenjunga), where they took somewhat less time to summit, about 30 days.
Jan
1
comment Is department store merino wool less effective than branded (i.e. SmartWool) merino wool in staying warm and wicking moisture?
Thanks for the link about mulesing, which was very informative. These two WP articles give information about some manufacturers and wholesalers who source their wool from farmers who don't practice mulesing:en.wikipedia.org/wiki/Merino#Animal_welfare_developments en.wikipedia.org/wiki/SmartWool
Dec
31
comment Chaining locking carabiners
Thanks for your answer, but this doesn't really address the question. What you're describing is essentially what I used to do. The question explains what I didn't like about that method.
Dec
31
comment Chaining locking carabiners
I also don't understand the remark "just go buy a quickdraw." I own some quickdraws, but I don't see how that's helpful here.
Dec
30
comment What are the rules to grade sport climbing single pitch routes?
I really think it's purely subjective. There are lots of different ways in which a route can be difficult, and they're not directly comparable.
Dec
30
comment What is a good substitute for water purification tablets
Depending on where you're going, water purification may be totally unnecessary. For example, the scientific evidence shows that backcountry water in the Sierra is safe to drink without treatment. Different methods of purification also handle different types of bugs. So the place to start would be to tell us where you're going, then we could figure out if there are any nasties that need to be killed off. Then if there are, we could suggest a method that would work on that type of nasties.
Dec
29
comment Best rope for a rope swing
6 mm perlon cord is cheap and should work.
Dec
26
comment Chaining locking carabiners
@requiem: Interesting. I've never seen those. Are you thinking that they're intended for linking together two carabiners? But I can accomplish that by just winding a shoulder-length sling five times around my hand. That gives me something about 4" long. (It's awkward to try to get it any shorter than that, because of the bar tacks.)
Dec
26
comment Chaining locking carabiners
@Dakatine: Interesting. But I don't have any reason to carry a daisy chain, since I don't do any aid climbing. (They're no longer considered safe for use as personal anchors.)
Dec
24
comment Chaining locking carabiners
I think you're misunderstanding the question. I'm using this to extend my ATC so that I can fit a Prusik backup underneath it. I'm not talking about using it on the anchor that I'm rappelling off of.