(Thanks, Tanya Schevitz!)
Like any concerned father with ready access to rugged, waterproof synthetic fabrics at work, Robert Carrier took home a 50-foot roll of beige Naugahyde in hopes of persuading his son to splash down on something safer. He unfurled it in the yard, hosed it down and watched as every kid in the neighborhood showed up and stayed to slide for hours.
Realizing he had a hit on his hands, Carrier used his sewing skills to refine his product. “He stitched a long tube along one side, sewn shut at one end, with spaces between the stitching so that when you attached the hose, the water pressure would build up and water would squirt out those openings and lubricate the surface of the material,” (explains Tim Walsh, author of "Timeless Toys: Classic Toys and the Playmakers Who Created Them.")
Jonathan writes, "The Drinkable Book is a water filter and an instruction manual for how and why to clean drinking water. The drinking paper uses a thick, sturdy sheet of paper embedded with silver nanoparticles, which are lethal for microbes. Funds will go to print 1,000 Drinkable Books and distribute them in Ghana, Haiti, India, and Kenya with water nonprofit Waterislife."
Our goals include: 1) Engage local communities in protecting and cleaning their drinking water. WATERisLIFE has ties to rural communities in Ghana, Haiti, Kenya, and India, where feedback from local folks in these communities will be gathered in Fall 2014 through Winter 2015. "WATERisLIFE is a big believer in "boots on the ground," according to founder Ken Surritte. So the books will go with teams traveling to parts of Africa and India, where they'll hold educational sessions on maintaining a clean water source."
2) Theresa will also explore other filter prototype designs to determine the best way to clean water with this pAge drinking paper technology. While in South Africa, Theresa worked with Corinne, a MS engineering student from Carnegie Mellon University. Corinne has led a group of students to design an emergency water filter using pAge filters. This new filter design also shows great potential, especially for emergency response and disaster relief applications! Initial field studies on this new filter prototype will start at the end of the summer 2014.
3) The number of books needed is many more than Theresa has ever made in the lab, and the production needs to be scaled up.
Via the Toys and Techniques blog, Franco Potenza's "Vita e lavoro nell'acqua" ("Life and work in the water"), c.1969, is a beautiful example of library music meant to accompany underwater-themed visuals. In the media business, library music is music that's usually owned outright by a company and then licensed to customers who use it as soundtracks for TV shows, radio programs, and industrial films. There's still a wealth of amazing vintage library music warping away on vinyl in warehouses, basements, thrift stores, and record shops around the globe awaiting rediscovery by intrepid crate-diggers.
Previously: "BBC radio documentary on Library Music"
Microplastic pollution in the surface waters of the Laurentian Great Lakes, a new paper in the Marine Pollution Bulletin, looks at the prevalence of micro-plastic beads, thought to originate with face-scrub, in the great lakes. These beads pass through water-treatment processing, and have long been suspected in freshwater pollution. The paper has occasioned a pledge from several big cosmetics companies to phase out the use of beads in their products. Five Gyres, an NGO that worked on the paper with SUNY Fredonia, has proposed model legislation banning the use of microplastics in consumer products. In the meantime, they've got an app that helps you find products that are free from microplastics.
Read the rest
Read the rest
Gmoke sez, "Susan Murcott and her team's factory making clay filters for Pure Home Water in Ghana. Over 100,000 served, so far."
They're shooting for 1,000,000.
"The earliest sawfishes likely arose in the shallow Tethys Sea, that ocean surrounded by the ancient continents of Godwanda and Laurasia, during the Cretaceous period at least 60 million years ago," writes Dr. M. at Deep Sea News.
These "sole survivors of an ancient bloodline" now number only seven species which roam the muddy bottoms of coastal areas, bays and estuaries.
All sawfishes can move easily between fresh and saltwater and often venture deep upstream into rivers. The sawfish lifestyle puts this both their size and saw near humans. All seven species are considered critically endangered by the IUCN. As much as we have impacted them, sawfish have also greatly influenced our culture.
And now, they're one of the most threatened species on our planet. Thanks, humans!
More: Exaltation to Extinction for Sawfishes [Deep Sea News]
Not all snowflakes are unique in their shape. There's one fact for you.
And here's another: The shape of snowflakes — whether individually distinct or mass-production common — is determined by chemistry. Specifically, the shape is a function of the temperatures and meteorological conditions the snowflakes are exposed to as they form and the way those factors affect the growth of ice crystals.
This short video from Bytesize Science will give you a nice overview of snowflake production and will help you understand why some snowflakes are unique, and why others aren't.