MIT researchers are now 3D-printing glass

While the thought of a machine that can squirt out endless ropes of molten glass is a bit frightening, the folks at MIT have just about perfected the process. In a paper published in 3D Printing and Additive Manufacturing, researchers Chikara Inamura, Michael Stern, Daniel Lizardo, Peter Houk and Neri Oxman describe a system for 3D printing glass that offers far more control over the hot material and the final product.

Their system, called G3DP2, “is a new AM platform for molten glass that combines digitally integrated three-zone thermal control system with four-axis motion control system, introducing industrial-scale production capabilities with enhanced production rate and reliability while ensuring product accuracy and repeatability, all previously unattainable for glass.”

The system uses a closed, heated box that holds the melted glass and another thermally controlled box where it prints the object. A moveable plate drops the object lower and lower as it is being printed and the print head moves above it. The system is interesting because it actually produces clear glass structures that can be used for decoration or building. The researchers take special care to control the glass extrusion system to ensure that it cools down and crystallizes without injecting impurities or structural problems.

“In the future, combining the advantages of this AM technology with the multitude of unique material properties of glass such as transparency, strength, and chemical stability, we may start to see new archetypes of multifunctional building blocks,” wrote the creators.


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Author: John Biggs

Queen rockstar unleashes badass space song about mysterious world of Ultima Thule

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Queen rocker Brian May used to beg his parents to stay up late, so he could learn about the stars.

Now six decades later, the guitar legend turned astrophysicist has released an arena rock song composed for both the farthest away object humanity has ever visited — Ultima Thule — and the spacecraft sent to scour this distant world, NASA’s New Horizons probe. 

“This mission is about human curiosity — the need for mankind to go out there and explore what makes the universe tick,” May said Monday at the Johns Hopkins Applied Physics Laboratory in Maryland, site of the New Horizons headquarters. 

“I hope you will enjoy it,” added May, who released the song two minutes after midnight local time, during the first minutes of the 2019. “I hope it’s worthy of this amazing cause.”  Read more…

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Author: Mark Kaufman

‘Stranger Things’ rings in the New Year with a Season 3 release date

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Stranger Things is kicking off the New Year in style. 

At the stroke of midnight (East Coast time) on New Year’s Day, Netflix dropped a video announcement for the next season of the series.

The teaser looks like an old Dick Clark’s New Year’s Rockin’ Eve clip, but distortion quickly sets in, and a date is revealed: July 4, 2019.  Read more…

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Author: Angie Han

This ‘Infinity War’ tune was the throwback jam of 2018

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2018 was a year that cried out for a simple, effervescent throwback tune we could use to forget our present troubles. No one could have guessed we’d find it in a movie that was all about the successful eradication of 50 percent of humanity

But that’s exactly what happened this May when Avengers: Infinity War topped the movie charts, and sent a 42-year-old track bouncing up the music charts in its wake. With Infinity War newly available on Netflix as of last week, we’re just a-movin’ and a-groovin’ to it all over again.

The track, of course, is “Rubberband Man” by the Detroit Spinners (full name, please, lest you confuse them with a contemporary British folk group). It’s in the movie for less than 30 seconds, but leaves a hell of an impression — partly because its 1970s bass-twanging  intro perfectly announces the Guardians of the Galaxy, but mostly because Chris Pratt so utterly throws himself into TikTok-like lip syncing.  Read more…

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Author: Chris Taylor

Mysterious deep space world Ultima Thule already looks weird — and we’ve only had a glimpse

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Ultima Thule — an uncharted world over 4 billion miles away — is coming into view.

On Monday, planetary scientists released a fuzzy image of Ultima Thule, snapped the day prior by the New Horizons exploration spacecraft from some 1.2 million miles away. Previously, New Horizons swooped by Pluto in 2015, capturing the icy, mountainous world in unprecedented detail.

Increasingly rich, detailed images of Ultima will start arriving on January 2, but already the deep space object looks elongated, not round, said New Horizons deputy project scientist John Spencer from the Johns Hopkins University Applied Physics Laboratory, the Maryland headquarters of the New Horizons program. The program is a collaborative effort between NASA, the Southwest Research Institute (SwRI), and the Johns Hopkins Applied Physics Laboratory, where scientists navigate and control the spacecraft. Read more…

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Author: Mark Kaufman

Ice Hotels

A 2012-13 room in the Icehotel in Jukkasjärvi, Sweden

In-refrigerator rooms

When I first heard about an “ice hotel,” I thought it must be a joke. I’ve heard of igloos, of course, but that’s not really the image that comes to mind when I think hotel. Sure, there was the Bad Guy’s ice lair in the James Bond film Die Another Day, but that’s just fantasy, right? The thought that someone might really construct an entire hotel out of ice, rent rooms, and then repeat the process each year was almost too wacky to believe. Believe it—not only does it happen, it has become one of the trendiest ways to spend a winter vacation.

They’ve Got It Down Cold

The first ice hotel was built in 1989 in a village called Jukkasjärvi in northern Lapland, Sweden. That first year it was a modest, 60-square-meter igloo; in the 2018–2019 season, the structure measures over 6,000 square meters and has about 100 guest rooms. Construction begins each year in October, and the hotel is open for guests from December through April (weather permitting). By summer the hotel has melted, but plans are already underway for next year’s bigger, better ice structure.

Ice hotels are built, naturally, entirely out of frozen water in the form of ice blocks and hard-packed snow. In some cases, blocks of ice are sawed from a river; for other parts of the building snow is compressed into wooden forms to create building blocks. (The Icehotel in Jukkasjärvi uses a mixture of snow and ice they call—wait for it—snice.) The guest rooms contain beds made of a block of ice and typically topped with a foam mattress. You sleep in high-tech mummy-style sleeping bags covered with animal pelts; although the air temperature in the room is below freezing, your body remains toasty warm. If nature calls in the middle of the night, you can head to an adjoining heated building with conventional facilities. Outhouses would not be much fun with outdoor temperatures routinely reaching –40°.

Put It on Ice

But a classy hotel is much more than a place to sleep, and at the prices of these rooms, you’d better get much more than a sleeping bag. Although the design changes from year to year, Sweden’s Icehotel invariably includes an ice bar for vodka-based drinks (beer would freeze); even the glasses and plates are made of ice. There’s also an ice chapel for “white” weddings, and in some years there have been ice cinemas, ice saunas (I have yet to figure that one out), ice art galleries, and even—I am not making this up—a replica of Shakespeare’s Globe Theatre built of ice. Most guests stay only one night in an ice room; ordinary heated hotel rooms are available nearby for longer stays. Even so, the hotel is such a hot property (so to speak) that waiting lists are sometimes several years long.

Sweden’s Icehotel was the first, but imitators have sprung up all across the northern climes—though sometimes they last for just a few years, until the novelty wears off. Finland and Norway both have ice hotels, and similar facilities can also be found in lower latitudes—including in Switzerland, Romania, and even Japan. In Canada, Québec has its own ice hotel, Hôtel de Glace, modeled on the original Swedish Icehotel and rivaling it in size and luxury.

In 2004, the United States saw its first ice hotel—the Aurora Ice Hotel at the Chena Hot Springs Resort in Fairbanks, Alaska. During its construction, state officials cited the hotel’s owner for fire code violations and did not permit the building to open until smoke detectors and fire extinguishers had been installed in each room. (I’m not kidding. Only in America.) Although the initial structure melted in the spring of 2004, it was rebuilt for the 2005 season, this time inside a larger, refrigerated structure—with the goal of keeping it frozen and habitable year-round. That hotel is no longer in operation, alas, but a permanent ice museum is open at the same location.

As far as I know, I’m not personally acquainted with anyone who has stayed at an ice hotel. I rather suspect—marketing hype and high prices notwithstanding—that it would be a decidedly uncomfortable experience. But then, many uncomfortable experiences are worth having, and it’s not every night you get to drink vodka out of an ice glass while watching the Northern Lights, and then sleep on a slab of ice. Sign me up!

Note: This is an updated version of an article that originally appeared on Interesting Thing of the Day on October 21, 2003, and again in a slightly revised form on January 3, 2005.

Image credit: L’Astorina [CC BY-SA 3.0], from Wikimedia Commons


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Author: Joe Kissell

Public Domain Day

Public Domain Day logo

On January 1 of each year, a batch of formerly copyrighted works enter the public domain, meaning anyone can now use them for any purpose. But copyright laws—and in particular, copyright durations—vary from country to country, and the United States has been especially greedy, with laws extending copyright protections over and over again, far beyond the original intention of the very notion of copyright. This year, for the first time in 21 years, a huge batch of copyrights are finally expiring in the United States, making works from 1923 fair game. (My friend Glenn Fleishman explains what’s going on in his Smithsonian Magazine article For the First Time in More Than 20 Years, Copyrighted Works Will Enter the Public Domain.) You can read a list of some of the most prominent works entering the public domain on BoingBoing. My favorite, of course, is the song “Yes! We have no bananas,” which I was telling my eight-year-old son about just last week. You can now remix it to your heart’s content.

Image credit: Cienkamila; slightly edited by odder [CC BY-SA 3.0 or GFDL], from Wikimedia Commons


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Author: Joe Kissell

My Amazing Scratch and Dent Store Deals!

Nearly all the extremely frugal groceries I got today. Not shown, 3 kilograms of rice.

I am beyond excited by today’s grocery shopping trip at the scratch and dent store. I happened to have 34 dollars left in my December grocery budget but when I saw the prices I decided to go over budget and use some of my January grocery budget to cover this, because as a very busy person it would have been


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Author: Penniless Parenting

Season 5 of ‘Black Mirror’ will be delayed because of ‘Bandersnatch’

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With its myriad of decisions and endings, Black Mirror: Bandersnatch certainly looked like a hell of a film (or game?) to put together.

So much so that in an interview with The Hollywood Reporter, producer Annabel Jones confirmed that Season 5 of the Netflix series would be delayed, with an arrival set for sometime in 2019.

It’s due in part to the “enormous” creative time that the film took, and Jones herself had “forgotten” how many endings there are in Bandersnatch, although the widely distributed number is five

The show’s creator Charlie Brooker said there are definitely more endings though, where the unwieldy, wild nature of the choose-your-own-adventure story apparently has parts that are very difficult to reach, and may never be accessed. Read more…

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Author: Johnny Lieu