Newly Invented Glass Would Let Cracked Smartphone Screens "Heal" Themselves

iStock
iStock

The solution to cracked smartphone screens may not come from stronger glass or less-clumsy owners. Based on new research published in Science, it's possible that the phones of the future will feature glass that "heals" itself when shattered. A version of this new type of glass has been developed by researchers in Japan, The Guardian reports.

Graduate student Yu Yanagisawa invented the material by accident while attempting to make a glue. The substance he came up with behaved strangely: If he made cracks in the surface, he could make the fissures disappear after pressing them together for 30 seconds at regular room temperature (about 70°F). He also found that the material reverted back to its original strength after being left alone for a few hours.

The polymer, called polyether-thioureas, isn't the first invention capable of healing itself. Scientists have already come up with self-repairing rubber, plastic, and concrete, and earlier this year Motorola patented a display that fixes its own cracks when heated. But according to the study, this is the first hard material whose self-healing properties function at room temperature. Thanks to a special hydrogen-bond pattern, the polymer offers the same robust protection as traditional glass without the irreparability.

It's easy to see how the technology could be a game-changer for phone manufacturers. According to a survey by Motorola, half of people around the world have cracked at least one smartphone screen in their lives. One possible reason that companies like Apple prefer glass for their screens over soft, durable plastic is that glass is more easily recycled. Yanagisawa believes his new polymer could be an even more sustainable alternative, as it could lead to fewer broken screens and phones being tossed in the trash.

[h/t The Guardian]

Looking to Downsize? You Can Buy a 5-Room DIY Cabin on Amazon for Less Than $33,000

Five rooms of one's own.
Five rooms of one's own.
Allwood/Amazon

If you’ve already mastered DIY houses for birds and dogs, maybe it’s time you built one for yourself.

As Simplemost reports, there are a number of house kits that you can order on Amazon, and the Allwood Avalon Cabin Kit is one of the quaintest—and, at $32,990, most affordable—options. The 540-square-foot structure has enough space for a kitchen, a bathroom, a bedroom, and a sitting room—and there’s an additional 218-square-foot loft with the potential to be the coziest reading nook of all time.

You can opt for three larger rooms if you're willing to skip the kitchen and bathroom.Allwood/Amazon

The construction process might not be a great idea for someone who’s never picked up a hammer, but you don’t need an architectural degree to tackle it. Step-by-step instructions and all materials are included, so it’s a little like a high-level IKEA project. According to the Amazon listing, it takes two adults about a week to complete. Since the Nordic wood walls are reinforced with steel rods, the house can withstand winds up to 120 mph, and you can pay an extra $1000 to upgrade from double-glass windows and doors to triple-glass for added fortification.

Sadly, the cool ceiling lamp is not included.Allwood/Amazon

Though everything you need for the shell of the house comes in the kit, you will need to purchase whatever goes inside it: toilet, shower, sink, stove, insulation, and all other furnishings. You can also customize the blueprint to fit your own plans for the space; maybe, for example, you’re going to use the house as a small event venue, and you’d rather have two or three large, airy rooms and no kitchen or bedroom.

Intrigued? Find out more here.

[h/t Simplemost]

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An Illinois School District Has Banned Fully Remote Students From Wearing Pajamas While Learning

The great thing about Zoom is that it's almost impossible for people to tell if you're wearing pajamas.
The great thing about Zoom is that it's almost impossible for people to tell if you're wearing pajamas.
August de Richelieu, Pexels

Having most of your interactions via video chat can be a little exhausting, but it does come with a few perks—like being able to wear your pajama pants without anybody knowing or caring. For students facing remote learning in Illinois’s Springfield School District, however, PJs are against the rules.

WGRZ reports that the dress code for Springfield’s learn-from-home plan includes a ban on pajamas, which a number of parents aren’t too happy about.

“I don’t think they have any right to say what happens in my house,” parent Elizabeth Ballinger told WCIA. “I think they have enough to worry about as opposed to what the kids are wearing. They need to make sure they’re getting educated.”

Aaron Graves, president of the Springfield Education Association, doesn’t actually appear to disagree with Ballinger.

“In truth, the whole pajama thing is really at the bottom of our priority scale when it comes to public education,” Graves told WCIA. “We really want to see kids coming to the table of education, whether it’s at the kitchen table with the laptop there or whether it’s the actual brick and mortar schoolhouse. Raising the bar for all kids and helping them get there, whether they’re in their pajamas or tuxedo, is really what’s important.”

Though the pajama prohibition was part of the regular in-school dress code [PDF], imposing it from afar will definitely be more difficult. Fortunately, the administration’s enforcement policy is pretty vague; a statement shared with WCIA explained that “there are no definitive one-to-one consequences” for wearing your pajamas to online school, and teachers will decide what to do about any given violation.

In other words, it looks like kids with easygoing teachers (and parents) will get to stay in their nightshirts, while others might have to learn their multiplication tables in tuxedos.

[h/t WGRZ]