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bio website lightandmatter.com
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visits member for 1 year, 10 months
seen 18 hours ago

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


Oct
3
answered Ration or consume water?
Oct
3
comment Belay checklist?
A checklist needs to be standard and perfect But I don't think that's possible, because there are many different types of climbs and belays. If I'm belaying someone on top-rope in the gym, I'm going to check their knot, but if they're following me on a multipitch climb, I can't do that. For a sport climb, I may want to tie a knot in the end of the rope, but the climber may choose not to wear a helmet. For a trad climb, I'm tied in to my end of the rope, so that's not something to check, but we should certainly be wearing helmets.
Oct
3
answered What to look for in a winter skills course?
Oct
2
comment Water filter that handles mercury?
I would first find out what the concentration is in the local water (this many parts per million or whatever), and compare with standards for drinking water. If it really is at the level where it could be harmful, I doubt you're going to find commercial products, since it's not a common problem.
Sep
30
awarded  Explainer
Sep
29
comment Carrying crampons safely when not using them
I tried the soda bottle. Totally didn't fit.
Sep
29
comment How do to a safety knot when abseiling with 2 ropes?
Most people use an autoblock, not a Prusik.
Sep
26
comment During high-altitude lengthy expedition: To shave or not shave?
Having a beard covered with frost is the manliest of mountaineering achievements. In order to achieve this, make sure to stop shaving at least a couple of weeks before you start the expedition.
Sep
24
awarded  Autobiographer
Sep
17
revised Black bears and torch lights
added 12 characters in body
Sep
17
answered Black bears and torch lights
Sep
16
answered Climbing Kilimanjaro for a newbie
Sep
16
comment Climbing Kilimanjaro for a newbie
I disagree with the emphasis on physical fitness. Physical fitness is basically irrelevant for climbing Kilimanjaro. Because of the need for acclimatization, you can't even climb very much each day. It's all easy trail-walking, and anyone who can carry a pack and hike a few miles a day can handle it.
Sep
16
comment Climbing Kilimanjaro for a newbie
It's not even legal to climb it alone. There's a legal requirement to have a guide.
Sep
16
comment How To Quickly Warm A Tent
If this question is aimed at settling an argument with your girlfriend, I would definitely advocate this method. If you can keep this method going well enough to keep warm all night, then you're a better man than I.
Sep
15
comment How To Quickly Warm A Tent
The tent's main purpose is not really to hold in warm air, it's to keep you from getting rained on and keep the wind off your face. Insulation is primarily the job of your sleeping bag and pad, and secondarily of any long underwear, socks, hat, etc., that you wear to bed. If you're too cold, you basically need a better bag and pad. It's not normal to heat a tent, and there is no easy way to do it.
Sep
15
comment Onlinetool to setup a track in a map and calculate the distance
I've been using mapmyrun.com for this, but I'd prefer open-source software rather than being dependent on someone's web site.
Sep
13
comment What is the name of this knot for tying into a “confidence” rope?
"Stopper knot" is one thing the knot could be used for, but it's not the name of the knot. I also disagree that the knot is good for the purpose advocated -- see my answer.
Sep
13
answered What is the name of this knot for tying into a “confidence” rope?
Sep
12
answered How to tell the time at night