Glow-in-the-Dark Paths Come to Singapore

Studio Roosegaarde's Van Gogh path in the Netherlands in 2014.
Studio Roosegaarde's Van Gogh path in the Netherlands in 2014.

Glow-in-the-dark materials are no longer for toys. Photoluminescence can help cities feel safer at night, whether it’s part of a mural, a bike lane, or a highway. Glow-in-the-dark paths have been tested in several European cities (the above is a Van Gogh-inspired bike path by the Dutch artist Daan Roosegaarde) and in Texas, but now, the technology may be coming to Singapore. The city-state is currently developing a 15-mile greenway called the Rail Corridor, and it now has a glow-in-the-dark path, as Mashable reports.

The 328-foot stretch of glowing path is part of a test of multiple surface materials that might eventually be used throughout the park, depending on public opinion. In addition to the strontium aluminate-beaded path that glows at night, there are also three other 328-foot stretches of the path that are paved with fine gravel, cement aggregate, and part-grass/part-gravel. The glow-in-the-dark material embedded in the walkway absorbs UV light from the sun during the day and can emit light for up to eight hours once the sun goes down.

However, in practice, glow-in-the-dark paths can be less dazzling than they seem. Mashable’s reporter called the glowing effect on Singapore’s path “disappointingly feeble.” In 2014, a glowing highway-markings pilot by Studio Roosegaarde in the Netherlands revealed that the first road markings faded after exposure to heavy rains. When it comes to glowing roads, the renderings tend to look better than the actual result, and there are still kinks to work out. (The studio worked the issue out eventually.) While a person walking or biking down Singapore’s glowing path might be able to tell that they were staying on the path better than if they were fumbling along dark pavement, it’s not the equivalent of a streetlight, for sure.

The trial paths opened to the public on July 12. The government is still gathering survey responses on people’s reactions to the different surfaces to determine how to proceed with the rest of the development. If the glow-in-the-dark path proves popular with visitors, the material could eventually spread to all the paths throughout the Rail Corridor. You can see what the glowing path looks like in action in the video below from The Straits Times.

[h/t Mashable]

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Remembering Sara Little Turnbull, Whose Bra Cup Design Became the N95 Mask

Design innovator Sara Little Turnbull.
Design innovator Sara Little Turnbull.
Photo Credit: © Center for Design Institute

The coronavirus pandemic has made something of a celebrity out of the N95 mask, a particle-filtering face covering that’s long been used to protect wearers from inhaling or exhaling pathogens. (The “95” refers to the fact it can block 95 percent of airborne particles.)

Like most nondescript and pervasive products, not many people stop to think about where it came from. Now, owing to the attention placed on it as a key tool in the health care professional’s fight against coronavirus, the woman behind the mask has come to the forefront. Her name is Sara Little Turnbull, and she designed what would become the N95 based on the shape of a bra cup.

A design consultant, Turnbull was working with the 3M company in 1958 in their gift wrap and fabric division when she was exposed to Shapeen, a non-woven material made of polymers and used for decorative ribbons. Turnbull was fascinated by the molded version of Shapeen and devised the first-ever pre-made bows for gift wrap.

Turnbull didn’t stop there. She saw endless possibilities in Shapeen and assembled an audience of 3M executives to present a number of ideas she had for products—more than 100 in all—using the material. At the presentation, which she titled “Why,” she impressed 3M with the scope of Shapeen's potential. The company quickly enlisted her to work on a design for a molded bra cup.

But Turnbull had another, arguably more important notion. At the time, she was taking care of three ailing family members who were under the care of doctors. Turnbull was often in a medical setting and noticed health care workers were constantly adjusting thin masks that tied in the back. She returned to 3M with the idea of using that same molded material to make a mask that would fit more comfortably on the face.

Again, 3M saw potential in Turnbull’s idea. By 1961, they introduced a non-woven lightweight medical mask based on her concept, with elastic bands instead of strings, an aluminum nose clip, and a form-fitting "bubble" shape. (The bra patent was approved in 1962.) Though innovative, the mask couldn't block pathogens for medical use and was marketed for dust filtration instead. An improved respirator hit the market in 1972 that was suitable for other industrial purposes. As the mask’s filtration evolved, so did its usefulness. In 1995, the N95 respirator was introduced in the health care field, fulfilling Turnbull's original ambition.

Though Turnbull had been relegated to a nondescript part of 3M, she had an extensive background in design, graduating from the Parsons School of Design in 1939 and later becoming the decorating editor of House Beautiful magazine. After Turnbull wrote an article taking companies to task for not designing products suitable for the end user, she was hired by 3M. As a consultant, she also collaborated with Corning, Revlon, General Mills, and Ford, among others.

After Turnbull died in 2015, the Sara Little Turnbull Center for Design Institute was formed, which offers information to the public on the value of design and supports the efforts of disadvantaged women's design education. Turnbull's vast archive of material is available to view by appointment. A foundation in her name also provides educational grants. The “Little,” incidentally, was in acknowledgment of her height. At 4 feet, 11 inches tall, Turnbull wasn’t terribly physically imposing. But her contributions were gigantic.

[h/t NPR]