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bio website lightandmatter.com
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seen Apr 15 at 13:56

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


Feb
7
revised FiveFingers Spyridon for Climbing?
remove greeting from title
Feb
6
comment “Must Have” in a starter Trad Rack
@Mr.Wizard: There's a description of it in Freedom of the Hills. It's a system for ascending a rope.
Feb
6
comment Roping together on an icy path?
+1 except that I disagree with the part about trekking poles. You can't self-arrest with them.
Feb
6
comment Roping together on an icy path?
@Blackbear: I haven't seen that particular product. This is what microspikes are: rei.com/product/856702/kahtoola-microspikes-traction-system All I can say about YakTrax's products is that their other products suck for winter mountaineering, and I don't think that's their intended purpose. Microspikes work great for winter mountaineering when the slopes are not too steep and especially when there is mixed terrain (mud, rocks, ice, dirt, and snow).
Feb
6
revised Roping together on an icy path?
added 133 characters in body
Feb
5
answered Roping together on an icy path?
Feb
5
comment Hot or cold shower better after exertion?
This might be a better question for Physical Fitness.
Feb
4
comment Hot or cold shower better after exertion?
30 years ago my gym teacher told me that muscle soreness was due to lactic acid buildup. However, my understanding is that the modern scientific evidence is against this claim. Soreness is now thought to be caused by microscopic damage that happens during eccentric contraction.
Feb
3
revised What type of oil to use for axe heads
punctuation
Feb
3
comment Preventing cross-loading on belay carabiners
it mostly occurs when I'm attached to a daisy chain Are you talking about a situation where they have a weight on the floor for you to tie in to, so a light belayer won't get picked up off the ground by a heavy climber taking a lead fall? If they require you to use that, why not bring your own separate biner and use that to clip in to it, so the anchor tether isn't acting on the biner being used for the belay device?
Feb
2
comment Hauling a pack during climbing
Are you saying to climb every pitch while having the pack dangling below you, hung off of your belay loop? That sounds incredibly awkward.
Jan
27
comment How do you determine how long a hike will take?
In addition to the variables mentioned by Ryley and xpda, I find huge differences in what percentage of their time people spend actually walking.
Jan
27
answered Are dark or bright clothings preferable in the desert?
Jan
26
comment What are the advantages and disadvantages between gas, liquid and solid fuel?
Nice answer, +1. But I don't find my alcohol stove "finicky to use." It's ridiculously simple. I pour alcohol in the cup. I light it. What I find finicky is my white gas stove, which I never use anymore because it's too much of a pain in the ass.
Jan
23
comment How do you keep the inside of your backpack organized?
There really isn't a generic answer to this. Different styles of packs are different. For example, ultralight packs are basically just a big sack, while heavier packs have frames and usually compartments. Climbing packs are designed so that the outside has nothing that will stick out or catch on anything, but hiking packs often have pockets.
Jan
23
comment Strengthening exercises for a backpacking trip?
This answer doesn't make a lot of sense to me, so I'm not inclined to believe it unless there's some evidence. For example, pull ups will strengthen your lats, but a well designed backpack, used properly, should not put a large load on your shoulders. In fact, upper body muscle mass is probably a hindrance to hiking, since it's just more weight to carry. The stuff about the "core" just seems to me to be a buzzword that it's popular to throw around these days.
Jan
22
comment Strengthening exercises for a backpacking trip?
back strength to carry heavy loads You could try reducing your pack weight. For example, my base weight (meaning the weight of my pack without food or water) for summer in the Sierra is about 12 lb (5.5 kg). This answer has some info on ultralight backpacking: outdoors.stackexchange.com/a/5177/2169
Jan
22
comment Training to prepare for oxygen deficiency in the high mountains
do I understand it correctly that the same training options I'm asking about in this question will apply to coping low pressure in high mountains (and will therefore minimize risk of different kind of altitude sicknesses for most of the people)? No, there isn't any training you can do that will have any effect on altitude sickness.
Jan
22
comment Training to prepare for oxygen deficiency in the high mountains
General fitness doesn't affect your chances of getting AMS, HAPE, or HACE.
Jan
22
comment How to begin in alpine tours
Mountaineering isn't one activity or one skill. It's a whole bunch of different skills, only some of which will be relevant for any given climb. A rock climbing gym is a good place to start learning some basic rope skills. Self-arrest is a crucial skill that is best learned from an experienced instructor with a good student-teacher ratio; however, you can also practice it alone and review the skills using youtube videos. Gradually try different things and increasing levels of difficulty.