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David Yasko
Lives in Windsor, nj
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David Yasko

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I understood that reference :D
Lion King 2: Simba's Pride
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David Yasko

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Has anyone heard about this lost recording of #JRRTolkien explaining #TheLordOfTheRings? It's really exciting news! As far as I know, this is the only real recording of the man, and he not only gives some insight into his most famous work, but also reads a poem he wrote in elvish! Check out the video on my site for more info.
In a lost recording of JRR Tolkein, the author explains the meaning behind his classic Lord Of The Rings tale. What mysteries does this recording unlock?
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!
 
For SF fans with an interest in historical stuff (well, it goes way back to 1976)...
Here's the entire catalogue of Starlog magazine available for online reading or download in a variety of digital formats.

https://archive.org/details/starlogmagazine 
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David Yasko

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Magic Sand or Hydrophobic Sand

Magic sand, Moon Sand, Mars Sand, Space Sand, Sand or Aqua Sand is a toy made from sand coated with a hydrophobic compound. The presence of this hydrophobic compound causes the grains of sand to adhere to one another and form cylinders (to minimize surface area) when exposed to water. As soon as the sand is taken out of water, it is completely dry and flows freely.

These properties are achieved by covering ordinary beach sand, which contains tiny particles of pure silica, and exposing them to vapors of trimethylsilanol (http://en.wikipedia.org/wiki/Trimethylsilanol), an organosilicon compound. Upon exposure, the trimethylsilane compound bonds to the silica particles while forming water. The exteriors of the sand grains are thus coated with hydrophobic groups.

Magic sand was originally developed to trap ocean oil spills near the shore. This would be done by sprinkling Magic sand on floating petroleum, which would then mix with the oil and make it heavy enough to sink. However, due to the expense of production, it is not being used for this purpose. It has also been tested by utility companies in the Arctic areas as a foundation for junction boxes, as it never freezes. It can be also used as an aerating medium for potted plants.

Magic sand is made in blue, green, or red in colors but appears silvery in water because of a layer of air that forms around the sand, making it unable to get wet.

Earliest reference to waterproof sand can be found in a 1915 book called The Boy Mechanic Book 2 put out by Popular Mechanics. The Boy Mechanic states waterproof sand was invented by East Indian magicians. The sand was made by mixing heated sand with melted wax. The wax would repel the water when the sand was exposed to water.

Text source: http://en.wikipedia.org/wiki/Magic_sand

The animated gif has been obtained from this video, entitled Hydrophobic Sand - QI - Series 10 Episode 10 - BBC Two:
Hydrophobic Sand - QI - Series 10 Episode 10 - BBC Two

Watch the video of how to make Magic Sand: How to make Magic Water-Proof Sand (Magic Sand)

Further reading: Magic Sand Experiment from the American Chemical Society
http://www.acs.org/content/dam/acsorg/education/whatischemistry/scienceforkids/characteristicsofmaterials/polymers/magic-sand-science-for-kids.pdf 

Further video: 'Magic Sand'

#chemistry #hydrophobic_sand #science #sciencesunday

Via: annarita ruberto
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Well done, mate.
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I've got to make this!
 
Add yourself to the mix and become part of this circuit with the Drawdio Musical Pencil, our latest beginner-friendly #WeekendProjects . For example draw a piano and then hear it as you touch a key with one hand and draw with the other. Watch the project video to see - and hear - this musical pencil in action: http://bit.ly/17ObN8R
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David Yasko

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My son would like these.
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FREE Printable Workout Cards
Download, print and use. 120 visual workout cards / 4 cards per A4 page. 
Download: http://neilarey.com/workout-cards.html
#fitness   #workout   #workoutwednesday  
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I've got to remember this!
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Whether you are running from Daleks or just excited to celebrate the 50th anniversary of Doctor Who on November 23, you need to win this TARDIS!
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Nice. 
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Have him in circles
78 people
Matthew Kadish's profile photo
Jay Ross's profile photo
Christian Ready's profile photo
Joe Avena's profile photo
Christopher Pond's profile photo
Paul Dimayuga's profile photo
Drew Cifrodelli's profile photo
Love Hate Films's profile photo
Bretta Jane's profile photo
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Software developer, chemical engineer.
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Varied.
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Gender
Male
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Tagline
Husband, father, cubmaster, randomizer.
Introduction
I grew up in Willingboro; went to Rutgers; am an engineer, chemical and software (self-proclaimed), was a scout, am a scouter, and am tired much of the time.
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Map of the places this user has livedMap of the places this user has livedMap of the places this user has lived
Currently
Windsor, nj
Previously
Willingboro, nj - New Brunswick, NJ
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