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bio website lightandmatter.com
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I live in LA and enjoy day hikes, backpacking, rock climbing, and mountaineering.


Aug
7
comment Knot to turn cord into loop (load bearing)
This answer could be improved by cutting the last paragraph. A reef knot is not a secure enough knot for this purpose.
Aug
7
awarded  Nice Answer
Aug
6
comment Is burying human waste always the lowest-impact solution?
I don't think the issue is altitude, I think the issue is overuse. Rainier and Whitney are both overused areas.
Aug
6
comment Is burying human waste always the lowest-impact solution?
Toilet paper is almost completely non-biodegradable. It's composed of long cellulose molecules, and bacteria can only attack the molecules from the ends. Burning, in my experience, only ever gets a certain percentage of the paper. Some of the paper is wet or has poo on it, so it isn't going to burn. I do almost all my wiping with rocks, then at the end I do the last few wipes with toilet paper, and seal the paper in a ziplock bag and pack it out.
Aug
6
comment How do you flavour your water on camping trips?
I would avoid drink mixes that are sweetened with sugar. I've heard that if the sugar isn't cleaned off of the threads of your water bottle, it can lead to dysentery.
Aug
6
comment Semi-static rope 24 hour rule
What do you mean by "emerged?"
Aug
6
revised How can I tell if I am dehydrated or have low electrolytes (need salt, etc.)?
added 212 characters in body
Aug
6
answered How can I tell if I am dehydrated or have low electrolytes (need salt, etc.)?
Aug
6
revised What to look for when purchasing a fixed blade knife
added 66 characters in body
Aug
6
comment What to look for when purchasing a fixed blade knife
Yes, links are fine. The only thing that's frowned upon is answers that consist only of a link, so they don't stand on their own.
Aug
6
answered What to look for when purchasing a fixed blade knife
Aug
5
awarded  Announcer
Aug
5
comment recreation.gov trail permits - “W: Available at the Facility”
Is this for a national park?
Aug
2
comment What foods can you cook by directly placing them into a fire?
If you don't want to wash dishes while camping, use freezer bag cooking. This will also have the side benefit of preventing diarrhea caused by bad potty hygiene and hand-to-mouth contamination from your hiking partners.
Aug
2
comment Taking Aspirin in higher altitudes
Disguising the symptoms of AMS is not necessarily a bad thing. At moderate altitudes (say 3500-4500 meters), AMS is typically just a nuisance. If you can make the symptoms go away, that's great.
Aug
1
asked Efficient and reliable method for managing a nut tool while following on a trad climb?
Aug
1
comment Altitude sickness when going from sea level to 14,000 ft (4,200m) in a single day
A lot of what people interpret as AMS is actually sleep deprivation and caffeine withdrawal. Re caffeine, see Hackett, "Caffeine at high altitude: java at base camp," High Altitude Medicine and Biology 11 (2010) 1, and this question: outdoors.stackexchange.com/questions/5820/… . Diamox is a good idea if there's time for her to get a prescription and test it at home to make sure she doesn't have a bad reaction to it. It's rare to get dangerously sick at 14,000'. Most unacclimatized people will simply feel lousy to some degree. That's all AMS is.
Aug
1
comment Altitude sickness when going from sea level to 14,000 ft (4,200m) in a single day
*Regardless of what you do, hydrate, hydrate, and hydrate. * "While symptoms of dehydration are similar to AMS, no compelling evidence suggests that dehydration contributes to AMS." -- Hackett, "Caffeine at high altitude: java at base camp," High Altitude Medicine and Biology 11 (2010) 1.
Aug
1
comment Altitude sickness when going from sea level to 14,000 ft (4,200m) in a single day
I don't think it's true that you have to use diamox for weeks while gradually acclimatizing to ultra-high altitudes. I often take it the night before summit day if I'm going to ~14,000'. But you do have to be careful because diamox makes some people violently ill. It's a good idea to try it at home to make sure it doesn't make you sick.
Aug
1
revised Please Explain Rock Climbing Grades
added 307 characters in body