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Posts by Andrew Jennings‭

29 posts
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Q&A How dangerous is swimming fully dressed in cotton/denim clothes?

Cotton kills - but only when not in water. Whilst in water, cotton will not have any thermal effect. However, the material itself can easily wear you down through drag. You might be able to swim...

posted 6y ago by Andrew Jennings‭

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Q&A Which type of rope is to be used to practice knots?

You need to use rope specific to the knots' purpose. It does no good to practice a fisherman's knot on hemp or climbing rope, when fishing line is expected. You'll never understand the nuances of...

posted 7y ago by Andrew Jennings‭

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Q&A What are the downsides to sleeping in a hammock on a multi-day hike?

One downside I've recently found out is that some hammock use can violate Leave No Trace policies. If you aren't careful about the rig you use to hang the hammock, you could injure the trees. The...

posted 7y ago by Andrew Jennings‭

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Q&A Alcohol-fuel for burner at the Glasgow Airport

Your travel to Scotland has probably passed, hope you had a good time. You are in the land of my favorite single malts: glendronach, oban, and glenmorangie - and therein lies my answer: Use ethyl...

posted 6y ago by Andrew Jennings‭

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Q&A Has a person ever got rabies from a marine mammal?

The WHO reports no rabies contracted from marine life. Rabies (World Health Oorganization) However, many kinds of marine mammals, such as seals, sea lions, whales, dolphins, and - especially - ki...

posted 7y ago by Andrew Jennings‭  ·  last activity 7y ago by System‭

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Q&A Etiquette of playing musical instruments on popular hikes

A few years ago, I went on a hike with the scouts, and came upon a beautiful overlook atop a cliff. The sun was setting, a gentle breeze was blowing, and it was really serene. We admired the sigh...

posted 6y ago by Andrew Jennings‭

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Q&A What's the difference between white gas, propane, kerosene, and gasoline?

Chemically, they're very different, having to do with carbon chain lengths, the discussion about which will not help you decide. @WedaPashi gave an awesome answer, so, I'll add to it by saying thi...

posted 7y ago by Andrew Jennings‭  ·  last activity 7y ago by System‭

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Q&A Is there a standard way of marking cooking alcohol containers?

I would use a red, yellow, or green bottle - and never a blue, white, or clear bottle, no matter how you labelled it. Red is typically used for gasoline. Kerosene is stored in blue. Diesel is st...

posted 6y ago by Andrew Jennings‭

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Q&A Who gets the bill if you activate a PLB to help someone else?

Almost always the victim gets the bill, but as mentioned in commentary, it depends on locality and sometimes fault. Local rules always apply. As an example, in the US, some state authorities will...

posted 6y ago by Andrew Jennings‭  ·  last activity 6y ago by System‭

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Q&A What can I add to alcohol to make the flame visible?

There are several methods, one is adding water. The thinking is this: the alcohol should be at about 75% alcohol, and denatured alcohol sold in the US already has some water in it, or other compou...

posted 6y ago by Andrew Jennings‭  ·  last activity 6y ago by System‭

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Q&A How do you refill your alcohol stove while it's burning?

I'm going with "it's too dangerous, so don't do it". I have two manufactured alcohol stoves, and both contain warnings against refill while hot. That being said, my answer is "You don't". Pictur...

posted 6y ago by Andrew Jennings‭

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Q&A When using a compass, why not follow a degree mark without rotation?

There are times when accuracy counts. A map will tell you where there is a dangerous or sensitive area, like highways (where you might miss a pedestrian crossing), cliff, body of water, private ...

posted 6y ago by Andrew Jennings‭

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Q&A How do you take field notes at below 0 °C, without freezing fingers?

Use a pencil. They do not freeze and can be easily sharpened. You might also use a grease pencil; they can write on metal, plastic, wet, oily, or waxy surfaces as well. These don't always afford...

posted 6y ago by Andrew Jennings‭  ·  last activity 6y ago by System‭

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Q&A How to follow an existing angle when sharpening?

For me, I'm fairly experienced at sharpening knives by eye. If you don't have access to a guide, which is not something that immediately comes to mind when you're packing for a hunting or camping ...

posted 6y ago by Andrew Jennings‭

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Q&A What are directional, height, and distance guidelines for marking trails?

Generally, I'm more used to methods described here for the US. Our task this past weekend was to use dots to remark a trail, but the method of placement was opposite to what I'm used to: the dots ...

1 answer  ·  posted 6y ago by Andrew Jennings‭  ·  last activity 6y ago by System‭

Question hiking trails signage
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Q&A Is there a good way to be kept up-to-date with climbing gear recalls?

I use these sites for general product recalls (categorized by use), although I think they are maintained by the same group: www.Recalls.Gov US Consumer Product Safety Commission For other recall...

posted 6y ago by Andrew Jennings‭

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Q&A Where does lightning strike

Lightening strikes from a point of excess electrons (negatively charged) to a path to a deficit of electrons (positively charged). As a rule, lightening usually strikes from the clouds to the grou...

posted 6y ago by Andrew Jennings‭

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Q&A Using a thermometer for hypothermia diagnosis in backcountry?

This is a great question. There are many different kinds of measuring body temperature, from oral/anal digitals, temporal/infrared digitals, glass, strips, non-contact infrared, and ear thermomete...

posted 6y ago by Andrew Jennings‭  ·  last activity 6y ago by System‭

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Q&A What are the steps you would go through to teach someone how to split logs?

This is how we teach our scouts: When cutting, your primary tool will be an axe (held with two hands) or hatchet (held with one hand), but a bow saw and splitting wedge can also be used. This foc...

posted 6y ago by Andrew Jennings‭  ·  last activity 6y ago by System‭

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Q&A Is the correct term Canada Goose or Canadian Goose?

For branta canadensis, it is "Canada Goose". As I suggested in my previous answer to a related question of yours, language is a stupid form of communication. Reputable sources in this link say it...

posted 7y ago by Andrew Jennings‭

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Q&A Would a Canada Goose deliberately try to keep a section of water from freezing?

I tried to research your question, but could find no information - credible or otherwise - which would suggest a deliberate behavior. So, my answer is just a guess. First off, Canada geese feed b...

posted 7y ago by Andrew Jennings‭

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Q&A How do you safely and legally dispose of old, damaged/unsafe camp stove gas canisters that are still full?

You will not have any problems with propane or butane being released in your yard, unless there are sparks or a heat source near by, or if there are low areas leading into a house. I would manuall...

posted 7y ago by Andrew Jennings‭

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Q&A What precautions are needed for caving?

Great answers here. This news piece seems to be relevant to your question, now probably 3 years old now. Grade Point Student survives three days in a cave after college spelunking group leaves hi...

posted 7y ago by Andrew Jennings‭

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Q&A How much of a temperature difference does a reflective sleeping pad make?

I'm gonna go with "not much". I found this article, Reflection Measurements in IR Spectroscopy And in it, I recognize many English words, but they did not seem to be arranged in a coherent fashi...

posted 7y ago by Andrew Jennings‭

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Q&A Offset in compass

I have a similar compass. What you see is normal, and can (and should) be changed. You review declination with NOAA, because declination changes with your physical location, and over time. Refer...

posted 7y ago by Andrew Jennings‭

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