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What you describe is exactly how it was done: Accurate measurement of distances and angles Obviously, measuring distances on flat ground is relatively straightforward: you use a known length me...
Reason a) Golf is synonymous with a form of fashion, to play Golf you must be wearing the 'correct' (i.e. insanely expensive) clothing. Some Golf courses have a high required standard of dress and ...
I've lived in coyote country for most of my life and I've never even seen one. I've heard them, but never seen them. When I was a kid, I used to wander around the ranch I lived on in Santa Cruz wi...
As the other answers point out using trigonometry you can determine the height of a distant peak. You can also use the same approach horizontally to determine the distance between two points. Provi...
The terms to google on seem to be "turbidity," "total suspended solids," and "total dissolved solids." TSS refers to solids that can be eliminated by a filter, and TDS to solids that are in particl...
Short answer, it depends. As with all fresh water sources the the important thing to notice is the context in which the water is in. I.e. where has the dirt come from? Where has the water come fr...
Wikipedia has some interesting points on this: The elimination of micro-organisms by boiling follows first-order kinetics—at high temperatures it is achieved in less time and at lower tempe...
Even breathable fabrics like Gore Tex will make you sweat when it's too warm - there needs to be a certain temperature difference for the fabric to work. So, you'll need to increase ventilation. Th...
Staying dry in a rain jacket requires you to sweat less moisture than the cloths you are wearing can breath out. The most effective way to let moisture out is ventilation, unfortunately, that me...
Unfortunately there isn't much you can do if your rain jacket is not breathable. My recommendation is to replace your rain jacket with a poncho, which may be very cheap - while a highly breathable ...
To add to Liam's answer, it depends what minerals/chemicals are in the water. Many of these are harmless (e.g. peat or clay), but other can be dangerous. In general, mineral contamination is not ef...
I've used a Black Rapid (clone) shoulder strap and added a carabiner that I attach to my belt loop to keep it from swinging or banging against the rocks. I also connect the carabiner to the clip t...
For first time hikers carrying a 30+ pound pack, I always estimate 1 mph on a moderate trail. I say this only because there are so many variables that one almost cannot calculate what will be. I ha...
Accessibility of the Break Choose breaks that you can reach before tiring, thereby saving energy reserves for the main event of catching and surfing waves. Avoid a long paddle! If legal and safe ...
I make sure the rain jackets I buy have pit zips. They make a big difference. I have also left the jacket at home and used compact umbrellas for hiking when I'm walking on open area paths. In some ...
The best thing to do is to try on the glasses in a store. Take your time and look around with your eyes to see how much is covered. You can also determine if the nose bridge or other part of the fr...
I would like to also recommend a sleeping pad. They make a big difference for comfort on bumpy ground in addition to adding insulation. I think the closed cell pads work better than the inflatable ...
The same way you would with the spine of a knife or other flat piece of metal with enough thickness: https://www.youtube.com/watch?v=3NYyRLGUMCY
At least one of everything, an extra pair of undies, and as many socks as you want. You're going out into the backcountry, not staying at a Hilton. If you're going to be out on a long trip, bring ...
Personally, I keep it simple. One long sleeve shirt for daytime use, one long sleeve shirt at night. I wear one set of boxers in a week, and a pair of long underwear at night (if it's under 50f). ...
I'll offer up my experiences. I spent a summer in the Sea of Cortez, in which the night time lows didn't go under 100f and the sea water temperature was above 90f for months. It was around 20 degre...
It's when you're moving quickly and quietly along the trail that you're most likely to encounter a bear in the Rockies, and that's because they're easier to sneak up on that way. I run into more b...
Just today I had a very interesting time watching a coyote (while it watched me) at the golf course across the street from my house in Oregon. S/he wasn't at all aggressive, but wary enough of me t...
If its true canvas (cotton) and its leaking its pretty much past its best before date and replacement is the most reliable solution. Good news is Canvas takes water proofing products well and as lo...
This isn't really a clear yes/no sort of question, I'm also pretty reticent to tell someone what would be best for their child. Aside from that hopefully someone will provide some information that ...
