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The fine answer of @Monster is correct for UVB rays, but the point raised by @imsodin is pertinent. The following information and quotes are taken from the Skin Cancer Foundation, UVA and UVB. Wh...
Purely theoretical (in practice sunscreen isn't as strong as it says on the bottle to begin with) you multiply it. If 1/3rd of the UV photons make it through the first layer, and of those that mad...
Quick synopsis: Beetles infested tree. See circular holes. Woodpeckers made larger holes to get at the beetles. Tree died. Bark fell off, helped along by animals trying to get to the tasty bee...
It sounds like you need your very own wetsuit, preferably one that is made for cold waters. Not sure if you can be too warm in a wetsuit, honestly, I am not an expert in this, but you definitely ne...
As an answer that will be of immediate use without investing a lot of money: You can wear two wetsuits, one over the other. I have done this in the past when the rental place couldn't provide a wa...
I am the lead hardware engineer for Backcountry Access. Interference from personal electronic devices (PED) is very real, and it can range anywhere from minimal impact to severe. The reasons are ...
All of the answers above are great but I would like to add about the rubber wear. If you do commit to buying used climbing shoes, take note of the rubber wear. If the toes are worn unevenly or you ...
(Started as comment but then I realized it's getting too long). Short version: quite in contrast to Monster's advise, I recommend to start with a splitting maul if possible, because the splitting ...
The answer is yes, there are bubble free compasses. It seems that the trick to getting a compass to not have bubbles is to use a thermo-elastic capsule which flexes with the temperature changes. ...
I thought I would weigh in with the other method you mentioned. Drysuits. You would need to take a course to use it safely, there is more to it than diving in a wetsuit. As someone who primarily di...
Because the characteristic of a backpack in question is volume or how much content it can hold, not mass. An extreme example: If I fill lead into a 20l pack, I get ~225kg, if I fill styropor into a...
When travelling on extremely remote roads, you need to prepare for the worst. This is even more true if you are travelling in a climate where the weather might kill you within days, such as in ext...
I started to feed these smart cautious birds a few years ago in my back yard in the winter. In my amazement they are also guardian birds for morning doves. I had watched these crows chase and inter...
I have always learned that when you go to remote areas you should have at least a basic knowledge of car repair and depending on the make of car and the area you go to your knowledge should be good...
Basic car survival kit Flares Dehydrated food Signal mirror Map and compass (not for hiking. Need to know what direction the nearest people would be to use the sinal mirror effectively) Water (at...
One of the best things you can do in this situation is actually what you could do before it happens: bring preparations. Other comments have already mentioned different items already and ultimately...
Birds of the genus Corvus are intelligent and generalists. They are not picky, and can survive on lots of different types of food. They are also more able than other birds to find clever ways to ...
This is not constrained to Siberia. A snowstorm/blizzard can occur at many locations and throw down so much snow that roads are blocked and people outside the main routes (or even on main routes) g...
Lapland has moose. As AMC Outdoors says in its article Do You Know How to Respond to a Moose Encounter? Any moose, at any time of year, may respond aggressively if provoked by your presence The...
I'd like to address the safety angle specifically: the main things you need to concerned about being alone in the mountains in winter are: Sudden drastic weather changes Avalanches Being stuck in...
Gas Money and Dream will not get you into Grand Canyon NP. With some exceptions it is $30 per vehicle to visit the most popular areas. FREE ENTRANCE PARK DAYS TO KEEP IN MIND FOR 2017: Do...
You will get it within half an hour, if you're a little handy. Preparation: Take a splitting maul Taking safety shoes might be wise Select the biggest log to use it as 'table'. Safety tips for...
If you know exactly where your bindings need to be fixed then you don't need the demo plate, and fixing directly to the ski gives a more rigid connection between boot and ski. A demo plate is only...
I was taught during my Sea Cadet training days to remove my jacket or sweatshirt, and drape it over a strand of the barbed wire. Then knee beside the wire with the long axis of one's body parallel ...
For the same reason it matters in any other chase: distance gained in a pursuit brings you closer to the objective. Sailing upwind is like climbing up hill, it's slower going as opposed to being ...
