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Knots are one of those things that are always useful.

The Turks Head Neckerchief Slide is an easy and pretty way to start with knots, and the result is a pretty neckerchief slide you can always bring with you. Also, if you do it with paracord, you can also bring 6 feet of paracord in your pocket. And if you don’t like to use it as neckerchief slide, you can use it as a keychain ball.

Its really easy to create. You’ll only need…

- Approximately 6 ft of nylon rope (preferably a bright snazzy color) 
- A pen or pencil to help tie stopper knots.  (optional) 
- Scissors and a candle to trim and fuse the ends of the rope

Here are some resources to practice…

http://beltontroop111.org/Resources/3%20turks_head_slide_fancy.pdf

http://www.troop54.com/knots/TurksHeadKnot/TurksHeadKnot.htm

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Roof Water tanks are an interesting thing to know about. They have a strange aesthetic, watching every step we make, giving a necessary service. Here are some resources to go deeper…

New York Roof Water tanks, at Fogonazos
Great article by Antonio Martinez, about NYC Roof Water Tanks.

How Water towers work
An interesting thing to know, about how they work. Check it out!

Water Tank Woes: New York City Coops & Condos Flace Flurry of violations
Another article about NYC water Tanks and its deviated woes.

Water Towers from Wikipedia
Of course, the wikipedia resource, with interesting tips.

Flickr NYC Water Tanks group
Lots of images about Water Tanks

And if you want to go deeper, here is a guide to learn something more…

Guide to Rooftop Water Tanks & Cisterns
A guide to understand how they work and learn something about.

Enjoy and make use of it.