Reputation
3,224
Top tag
Next privilege 3,500 Rep.
Protect questions
Badges
7 33
Newest
 Nice Answer
Impact
~20k people reached

16h
comment Staying warm in a lightweight sleeping bag
To clarify on the heat transfer a bit, most of your lost heat when sleeping on the ground is from conduction, not radiation. A survival blanket (aka space blanket) is good at reflecting radiation but will not help at all with conduction, as it's made of extremely thin plastic with a reflective coating. An insulating foam pad does effectively block conductive heat transfer. The thicker the pad, the better it insulates.
May
20
comment May camping with a tarp be safer than using a tent, in bear country?
I think this question is slightly different from the marked potential duplicate. The other question asks if a tent provides protection from a bear, while this question asks essentially if different styles of tents are better or worse at providing protection from a bear. Similar but different.
May
20
comment May camping with a tarp be safer than using a tent, in bear country?
@Liam I was under that impression too, but according to The American Bear Association black bears have eyesight which is at least as good as a human's. It just turns out that their hearing and sense of smell are way better than ours, but they don't have poor eyesight per se. Point still stands though.
May
16
comment May camping with a tarp be safer than using a tent, in bear country?
I can't imagine that having an open-sided shelter will make a significant difference in how quickly the bear notices you. And while you're right that tent fabric will make it harder to aim should you feel the need to use a gun, you can see shadows and shapes much better through the walls of a tent than you can through tarp material. I'd rather 20% visibility in 100% of directions than 0% visibility in 70% of directions. Besides, the sound of a gun going off is probably more than enough to scare most bears away, actually needing to hit it to kill is so far-fetched as to be ridiculous.
May
16
comment When should a belay device be replaced?
Thanks. This answer provides more specific "this is what you should look for as possible reasons to retire the device" info, which is what I was looking for.
May
13
comment Geocaching websites
This question is pretty broad, and doesn't really fit the Stack Exchange format. Take a look at How to Ask and consider editing your question.
May
1
comment Why might one need a 2000 lumen headlamp?
@ShemSeger grab me in chat sometime if you want to talk about it in detail. Unfortunately I haven't had the opportunity to test dynamo-powered lights extensively, but I have a bit of info on them in the FAQ. Peter While Cycles is a good resource for dynamo info, and is the only North American distributor for most of the good dynamo-powered lights (like Busch & Muller).
May
1
comment Why might one need a 2000 lumen headlamp?
@ShemSeger thanks for editing - I do like your analogies. Downvote => upvote! :)
Apr
30
comment Why might one need a 2000 lumen headlamp?
@ShemSeger your understanding of lumens is incorrect. Illuminance (lux) decreases with distance, but luminous flux (lumens) is an integrated value which is the same regardless of where you measure it from. Your water analogy works, except that the "2L water bottle" is 2000 lumens regardless of where you pour it. The beam intensity and thus beam distance in any one particular location within the beam angle does depending on whether you "pour it on your head" or "water your lawn".
Apr
30
comment How to carry perishable foods on a multi-day trip, without it going rotten?
@shem are you the one carrying the cooler in this photo?
Apr
29
comment where is the optimal place to do dishes in the backcountry
I would not say there's 0 environmental impact. The environmental impact of boil-in-bag meals is that you're using a non-reusable foil packet for every meal.
Apr
27
comment How to carry perishable foods on a multi-day trip, without it going rotten?
@Wills good point, I voted to close this question as a duplicate as that's essentially what it's asking.
Apr
27
comment How to carry perishable foods on a multi-day trip, without it going rotten?
possible duplicate of A list of suitable foods for a long hike
Apr
24
comment Optimal use of available GPS devices when stranded
@jamesqf there are many places where one might need help or even be lost and yet still have cell phone service. You can even get a (typically weak) cell signal on some 14k ft peaks. I wouldn't expect to rely on a cell phone for help, but that doesn't mean it isn't a possibility even in many remote locations.
Apr
15
comment What is the most effective method to clean skin exposed to poison oak?
@BenCrowell sorry, that's not from the study, I'm simply explaining from personal experience that regular handsoap is less effective than dishwashing soap. As previously noted, one person's anecdotal experience does not necessarily account for all possibilities.
Apr
15
comment What is the most effective method to clean skin exposed to poison oak?
@BenCrowell sure, that would be fine by me. Feel free to include the survey you mention if you make an edit, too.
Apr
15
comment What is the most effective method to clean skin exposed to poison oak?
Now this is a suggestion I hadn't heard before. The first thought that comes to mind is that aggressively abrading the skin could actually open up tiny scratches and facilitate the oil getting into the skin. I'd be interested to hear if anyone else has experience with this method.
Apr
14
comment What is the most effective method to clean skin exposed to poison oak?
@BenCrowell however, there is a difference apparently between regular shower soap and dishwashing soap, which may explain why Olin got a better result out of technu than from whatever he usually showers with.
Apr
14
comment What is the most effective method to clean skin exposed to poison oak?
@BenCrowell this would be suitable as a separate answer if the comparison from the article were summarized in the answer.
Apr
5
comment Is there any difference between a harness used for rock climbing vs for mountaineering?
This is an excellent, thorough answer. Thank you.