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Posts by cobaltduck‭

49 posts
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Q&A What is this object in my garden (that looks like a bomb)?

What you are looking at is a vintage/ antique style of smudge pot. Although the top part held a wick which would be lit, the bottom part held slow-burning oil, not explosives, so you can relax. T...

posted 2y ago by cobaltduck‭  ·  edited 2y ago by cobaltduck‭

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Q&A Iodine tablet correct use and efficiency

Welcome back to good old chemistry class! Apologies if this gives you nightmares. First, the tablets used for water purification are not elemental iodine, but a crystal form called Tetraglycine H...

posted 4y ago by cobaltduck‭

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Q&A How can my neighbor encourage chipmunks to move away from her front-yard flower garden?

Had the same problem. Sprayed some "pepper wax" around the area. Problem disappeared. There are many brands available, as a web search for "pepper wax spray" will reveal. I've used whatever br...

posted 4y ago by cobaltduck‭

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Q&A Did any lighthouses provide directional navigation signals?

There is a of type navigational aid that partially provides some bearing information, and that is a range marker. Such markers occur in pairs, positioned close enough together to both be seen at t...

posted 4y ago by cobaltduck‭  ·  last activity 4y ago by System‭

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Q&A Why do hydration bladders top out at 3 liters?

It's all about weight. Water has a density of 1kg/L. Thus 3L is 3kg or about 6.6 pounds. That's equivalent to a brick on each shoulder when placed inside your pack. That's really not that much,...

posted 4y ago by cobaltduck‭  ·  last activity 4y ago by System‭

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Q&A Knot to tie handle of a bag

Fold each handle into itself and treat each as a single strand. Then just tie those two strands together in an ordinary square knot. Here is an example showing a similar bag, although much smalle...

posted 4y ago by cobaltduck‭  ·  last activity 4y ago by System‭

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Q&A Fact or Fiction: "If you want to keep your feet warm, wear a hat." (and the various explanations for it)

Inspired by several questions and answers here and also one at Biology SE, I have been looking around to try to find out whether this idea I heard constantly as a youth has any merit, or it just fo...

2 answers  ·  posted 4y ago by cobaltduck‭  ·  last activity 4y ago by System‭

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Q&A Post-hike Care and Pain Relief for Blisters and Hot Spots

There are many, many articles and web sites that will tell you what to do if you develop a hot spot or blister while on the trail, and need to perform some field treatment to allow you to get back ...

1 answer  ·  posted 4y ago by cobaltduck‭  ·  last activity 4y ago by System‭

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Q&A What can I do to be more visible to other ship's radar when traveling in a sea kayak?

Allow me to turn your question on its head a bit. Making yourself more visible to large vessels is a good idea, not being where they need you to be visible is a great idea. Stay away from channel...

posted 5y ago by cobaltduck‭

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Q&A Feather found on chicken coop

It took a while to find, partly because I was sure this would turn out to be an owl. Also, it seems like you already had your own answer before this. However, to complete the loop here, I do see ...

posted 5y ago by cobaltduck‭

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Q&A Why might a larger peregrine falcon chick take longer to molt than smaller siblings?

Between the comments, continued observation of the Falcon-Cams, a little wiki-reading, and information on the site of the sponsor of the cams, I think I can confidently give myself the answer. Fir...

posted 5y ago by cobaltduck‭  ·  last activity 4y ago by System‭

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Q&A Is there an easy way to remember if you add magnetic declination to magnetic bearings or true bearings?

There's a mnemonic: Can Dead Men Vote Twice At Elections? The first letters in this sentence indicate the meaning: Compass +/- Deviation = Magnetic +/- Variation = True (Adding Easterly). This me...

posted 5y ago by cobaltduck‭  ·  last activity 5y ago by System‭

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Q&A Why might a larger peregrine falcon chick take longer to molt than smaller siblings?

It has become a bit of a fad in the last few days at my current workplace to open a browser tab to either http://www.lbwl.com/falcon.htm or http://www.lbwl.com/falcon2.htm , take a quick look now a...

1 answer  ·  posted 5y ago by cobaltduck‭  ·  last activity 4y ago by System‭

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Q&A What is this brown catipillar with white stripes and two black spots near the head in Loveland, Colorado?

I'm not 100%, but I am going to call that a yellow striped armyworm, Spodoptera ornithogalli. These things seem to be widely distributed and very common; I've seen them frequently in my travels bu...

posted 5y ago by cobaltduck‭

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Q&A Why aren't birds using these feeders?

After a brief exchange of comments, I think I have enough to take a stab at an answer, with the caveat that this will be mostly informed-guessing on my part. After all, every animal has its persni...

posted 5y ago by cobaltduck‭

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Q&A Understanding the transition in USCG Personal Flotation Device (PFD) Labeling

The new labeling system gives each PFD not one type, but three attributes ranked on a spectrum: buoyancy, turning power, and size. The label adds a fourth attribute listing suggested activities fo...

posted 5y ago by cobaltduck‭  ·  last activity 5y ago by System‭

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Q&A Understanding the transition in USCG Personal Flotation Device (PFD) Labeling

In this question a couple years ago: What do life jacket ratings mean (Type I, Type II, etc)?, we see the traditional types many of us learned about in Boating Safety courses, or in Scout/ Youth ca...

1 answer  ·  posted 5y ago by cobaltduck‭  ·  last activity 5y ago by System‭

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Q&A How to test the sharpness of a knife?

Try to slice a piece of paper. A good sharp knife makes a clean cut. A dull knife makes either a ragged cut, or worse, just pushes the paper to the side. I like this article: https://www.fieldan...

posted 5y ago by cobaltduck‭

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Q&A How are mountain lion populations estimated?

I honestly do not know for which individual species this method has been used, and in particular whether it has been used for Puma concolor, but a general method that is frequently used for populat...

posted 5y ago by cobaltduck‭  ·  last activity 5y ago by System‭

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Q&A Knot for pulling two branches of a tree together

I agree with the prior answer that a rope should not be your permanent solution here, given that it will ultimately damage the tree. However, I think you can mitigate this for short-term use of ro...

posted 5y ago by cobaltduck‭

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Q&A What are the differences between a lighthouse and a light station in terms of the specific purpose?

First, I would like to give a definition of a smaller term, that of just "light." For this, I turn to the U.S. Coast Guard. In this brief PDF of the Aids to Navigation System, we get a couple hel...

posted 5y ago by cobaltduck‭

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Q&A What is head/lift indication in a digital compass on a sailboat?

Let's start with the terms lift and header. Suppose I want to go that way, whichever direction that happens to be. If the wind is coming from that way, then I can't do it, at least not on wind po...

posted 5y ago by cobaltduck‭  ·  last activity 5y ago by System‭

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Q&A What is the best practice to secure a 17ft open canoe to the roof of a vehicle?

This is difficult, since every boat/ vehicle combination is unique and so there is no one "silver bullet" method for rigging that will work for all. However, there is one principle that I apply to...

posted 5y ago by cobaltduck‭

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Q&A Cat-safe mosquito repellent?

As one of the minority of the population that cannot use DEET (it makes my skin burn!) I use plant-based solutions. There are several options on the market that use either citronella or geraniol o...

posted 6y ago by cobaltduck‭  ·  last activity 6y ago by System‭

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Q&A What knot is this that starts off like a taut line hitch but ends differently?

This knot appears to be one referred to as the tarbuck knot, named for its inventor, see for example: https://en.wikipedia.org/wiki/Tarbuck_knot or http://www.craigmarine.info/accessories/fishing_e...

posted 6y ago by cobaltduck‭

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