Tech
Where does your glass come from?
The word “local” has become synonymous with sustainability, whether it’s food, clothes or the materials used to construct buildings. But while consumers can probably go to a local lumberyard to buy lumber from sustainably grown trees cut at nearby sawmills, no one asks for local glass.
If they did, it would be hard to give an answer.
The raw materials that go into glass—silica sand, soda ash and limestone—are natural, but the sources of those materials are rarely known to the buyer.
The process by which sand becomes sheets of glass is often far from transparent. The sand, which makes up over 70% of glass, could come from a faraway riverbed, lakeshore or inland limestone outcrop. Sand with at least 95% silica content is called silica sand, and only the purest is suitable for architectural glass production. Such sand is found in limited areas.
If the glass is colorless, its potential sources are even more limited, because colorless low-iron glass—popularized by Apple’s flagship stores and luxury towers around the world—requires 99% pure silica sand.
Glass production in Venice
The mysteries of glass production have a historical precedent that can be traced back to trade secrets of the Venetian Empire.
Venice, particularly the island of Murano, became the center for glass production largely due to its strategic location for importing raw materials and production know-how and exporting coveted glass objects.
From the 11th to the 16th centuries, the secrets of glassmaking were protected by the Venetians until three glassmakers were smuggled out by King Louis XIV of France, who applied the technology to create the Palace of Versailles’ Hall of Mirrors.
Venice was an otherwise unlikely location for glassmaking.
Neither the primary materials of sand and soda ash (sodium carbonate) nor the firewood of the medieval Venetian glassmakers were found in the city’s immediate vicinity. They were transported from the riverbeds of the Ticino River in Switzerland and the Agide River, which flows from the Austria-Switzerland border to the Adriatic Sea south of Venice. Soda ash, which is needed to lower the melting point of silica sand, was brought from Syria and Egypt.
So Venetian glass production was not local; it was dependent on precious resources imported from afar on ships.
Rising demand for low-iron, seamless glass
In the past few decades, low-iron glass, known for its colorlessness, has become the contemporary symbol of high-end architecture. The glass appears to disappear.
Low-iron glass is made from ultrapure sand that is low in iron oxide. Iron causes the green tint seen in ordinary glass. In architecture, low-iron glass doesn’t affect the performance—only the appearance. But it is prized.
In the U.S., this type of sand is found in a few locations, primarily in Minnesota, Wisconsin, Illinois and Missouri, where sand as white and fine as sugar—thus called saccharoidal—is mined from St. Peter sandstone. Other locations where it can be found around the world include Queensland in Australia and parts of China. Less pure sand can be purified by methods such as acid washing or magnetic separation.
Perhaps no corporation has popularized low-iron and seamless glass in architecture more than the technology giant Apple.
Glass has become fundamentally linked with Apple’s products and architecture, including its flagship stores’ expensive and daring experiments in architectural uses of glass.
Apple’s first showroom, completed in Soho in New York in 2002, showcased all-glass stairs that were strengthened with hurricane- and bullet-resistant plastic interlayers sandwiched between five sheets of glass. The treads attach to all glass walls with hockey puck-sized titanium hardware, making both the glass stairs and the shoppers appear to float.
The company’s iconic flagship store near New York’s Central Park is an all-glass cube measuring 32.5 feet (10 meters) on each side and serving as a vestibule to the store below. The first version was completed in 2006 using 90 panels, which was a technical feat. Then, in 2011, Apple reconstructed the cube in the same location, same size, but with only 15 panels, minimizing the number of seams and hardware while maximizing transparency.
Today, low-iron glass has become the standard for high-profile architecture and those who can afford it, including the “pencil towers” in Manhattan’s Billionaires’ Row.
Glass’s climate impact
Glass walls common in high-rise buildings today have other drawbacks. They help to heat up the room during increasingly hot summers and contribute to heat loss in winter, increasing dependence on artificial cooling and heating.
The glassmaking process is energy intensive and relies on nonrenewable resources.
To bring sand to its molten state, the furnace must be heated to over 2,700 degrees Fahrenheit (1,500 degrees Celsius) for as long as 50 hours, which requires burning fossil fuels such as natural gas, releasing greenhouse gases. Once heated to that temperature, the furnace runs 24/7 and is rarely shut down.
The soda ash and limestone also release carbon dioxide during melting. Moreover, glass production requires mining or producing nonrenewable natural resources such as sand, soda ash, lime and fuel. Transporting them further increases emissions.
Production and fabrication of extra-large glass panels rely on specialized equipment and occur only at a limited number of plants in the world, meaning transportation increases the carbon footprint.
Architectural glass is also difficult to recycle, largely due to the labor involved in separating glass from the building assembly.
Although glass is touted as infinitely recyclable, only 6% of architectural glass is downcycled into glass products that require less purity and precision, and almost none is recycled into architectural glass. The rest ends up in landfills.
The increasing demand for glass that is colorless, extra large and seamless contributes to glass’s sustainability problem.
How can we make glass more sustainable?
There are ways to reduce glass’s environmental footprint.
Researchers and companies are working on new types of glass that could lower its climate impact, such as using materials that lower the amount of heat necessary to make glass. Replacing natural gas, typically used in glassmaking, with less-polluting power sources can also reduce emissions.
Low-e coatings, a thin coat of silver sprayed onto a glass surface, can help reduce the amount of heat that reaches a building’s interior by reflecting both the visible light and heat, but the coating can’t fully eliminate solar heat gain.
People can also alter their standards and accept smaller and less ultraclear panels. Think of the green tint not as impure but natural.
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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You don’t need a four-figure Swiss movement to know what time it is—or look good doing it. One of the most wonderful things about “budget” watches today (although it’s kinder, or more appropriate, to say “affordable”) is that brands have learned to take design cues from luxury timepieces while quietly getting very good at the fundamentals: reliable movements, thoughtful materials, and proportions that don’t scream “cheap.” Take a look at the Orient in WIRED’s selection below as a prime example.
It could easily be argued that we’re in a golden age of affordable horology (see our full guide here for definitive proof), where, if you choose wisely, $350 or less can buy everything from a desirable dress watch, or a high-end collaboration, and even a supremely capable and classically chic diver. Pieces that will see you right from sunken wreck to boardroom table. And let’s not forget the retro allure of digital watches right now, either, with the Shark Classic not only being one of our favorites here, but at $70, it’s also the most affordable.
Moreover, should you decide to bag more than a few (and who could blame you at these prices?), we’ve even got the perfect carry case picked out: Nanuk’s IP67 waterproof and dustproof NK-7 resin $175 910 Watch Case (pictured above) with patented PowerClaw latching system—ideal for securing any timepiece collection, be it bargain or big budget.
Be sure to check out our other wearable coverage, including the Best Budget Watches Under $1,000, Best Smartwatches, Best Fitness Trackers, and Best Smart Rings.
Same as the Five Senses deck above, this scratch-off card set happens in sequence, with optional “level up” cards to really push intimacy, and separate cards for each partner with secret directions. For this date, you’ll both bring a red item that you show at certain points to signify that you’re open to physical touch. Then you’ll go out to dinner and have intentional conversation, and every time a partner pulls out the red item, you’ll follow the prompts to initiate increasingly intimate physical acts, ranging from hand holding to neck kisses. So there we were, at Illegal Taqueria, edging each other over al pastor tacos (I kid).
Many of the cards urged a partner not to interrupt or solve problems, but ask questions and talk dirty. My date said, “I think this may be for couples who hate each other.” I had to agree. The second part of the date involved driving and stoplights, but since we were in Brooklyn, we walked down the trash-filled sidewalk and pretended to be a suburban couple on the fritz instead.
The rest of the date included buying things for sexy time, like whipped cream and blindfolds. I’m vegan and had no desire to lick cream from chest hair, so we came home, stripped, and did our best to keep our eyes closed (in lieu of a blindfold). It was overall a strange experience for us both, I think. If you and your partner need a lot of prompting to connect, compliment, and be physical, this set is for you.
Date: Greg, 10/10 (Note: I didn’t find this man on Hinge; I met him the old-fashioned way, in a bar at 2 am.)
Box: 6/10
Valentine’s Day is a sneaky one. It’s easy to let grabbing fun and unique Valentine’s Day gifts fall to the wayside while you recover from the Christmas holidays, but it’s not one to miss if you have a partner you want to shower with a little extra love.
If you’re feeling too wiped to shop, good news: I’ve got you covered. I’ve rounded up some of our favorite ideas for the year’s most romantic holiday, from Lego sets you can build as a date and date boxes filled with ideas to last you all year long to gorgeous flowers you can get delivered in a snap and cozy robes you’ll want to lounge in together. This guide all the Valentine’s Day gifts we’re excited to give this year.
Curious about what else we recommend? Don’t miss our Gifts for Lovers, Gifts for Moms, Gifts for Plant Lovers, Gifts for People Who Work from Home, and Best Blind Boxes for more gifts and shopping ideas.
Table of Contents
For a Gift That’s a Date
My husband and I are planning our fourth or fifth year of our favorite Valentine’s Day Date: building Lego sets together. We’ve done this for years, and then we get to enjoy the fruits (well, flowers) of our labor around the home forevermore. These sets serve as both the gift and the activity. Building the dried-flower centerpiece together was probably my all-time favorite, since you can each simultaneously work on one half and then click it together at the end, followed by each building a different-color bonsai tree.
For a Daytime Adventure
Retrospec
Weekender Crew Multi-Person Inflatable Paddle Board
Building on the idea of date activities that involve gifts, this multi-person paddleboard is a fun way to spend time outdoors while staying together the entire time. It’s massive, almost raftlike, so that it can support the weight of up to three adults, but once we got the hang of the size, it wasn’t hard to maneuver. Sometimes we’d both row together, sometimes I’d let my husband do all the work. It made for a lovely daytime adventure together, and I can’t wait for the next warm day for my husband and me to take this out on our local harbor again. It’s big enough that we could bring our son, though it’s much more peaceful as a date activity. It’s inflatable, and I’d recommend grabbing an electric filler since it takes a lot of manual pumping otherwise.
For Flowers on Demand
Photograph: Boutayna Chokrane
The classic go-to for Valentine’s Day is, of course, flowers. WIRED reviewer Boutayna Chokrane tested several flower delivery services to find the best one to get sent to your home, and her favorite is the Ode à la Rose, specifically the Edith arrangements. The business was created by two former French bankers, and the arrangements’ design choices feel distinctly chic in a way only French romance can. The Edith bouquet is entirely Columbus double tulips from Holland, and come hand-tied in a travel vase a fun pink box. The flowers ship nationwide, and there’s same-day shipping in New York, Chicago, Los Angeles, Austin, Miami, and Washington, DC.
For a Jewelry Upgrade
Maybe you’ve already exchanged rings, or maybe you’re looking for your first set without committing to I do. Either way, the most popular fitness tracker to get these days is a smart ring, and Oura is the ruler of the space. The latest model is the Ring 4, and it comes in both metallic and ceramic finishes. Many of my friends love theirs. I wish I had one, but they don’t make sense for my husband and me since we’re an aerialist and rock climber duo. Live my dreams for me and get this for your valentine (and yourself)!
For Your Fave Photographer
If your romantic partner loves to capture photos, a digital photo frame is the perfect gift (and you’ll benefit, too, as likely the number one fan of their photography!). I’m the photographer of our house, and our Aura frame is my husband’s favorite gadget because it showcases photos I’ve captured of our son and life together over the years. Our wedding photos can be found on there too, as well as the occasional good photo of me that he’s captured. It’s a monthly ritual for me to go through my camera roll and add my latest favorites. Aura’s my favorite because the range of frames is beautiful, and the storage is unlimited with no fees or subscriptions.
For the Cozy Couple
One of my favorite souvenirs I have around the house is a matching robe set that my husband and I bought on our honeymoon. Our all-cotton robes are from the Ten Thousand Waves Japanese spa in New Mexico (the final destination of a Southwestern US road trip) and are great for taking to the pool or using after a shower on a hot day. But I still love a good fluffy robe during the colder season, especially since it can double as a towel. Get your partner one of these cozy robes to give them something luxurious to use after their next everything shower or quick rinse-off. Cozy Earth’s robe is crazy-soft thanks to its blend of cotton and bamboo viscose, while this flannel robe from L.L.Bean is one of our favorites for anyone who works from home.
For Your Inner Theater Kids
If your partner loves to sing along to the Wicked soundtrack and is regularly suggesting karaoke as a group activity, then give them the gift of making karaoke happen anywhere with these gadgets. The Bonaok Karaoke Microphone is one of our favorite karaoke microphones, letting you sing anywhere without lugging bulky equipment. The Ikarao Shell S2 is a portable device with two mics, a built-in screen, and support for streaming services, so you can sing along to your favorite songs on Spotify.
For the Fitness Couple
After the Christmas season, I saw a video on my For You page that roasted how every mom had clearly gotten a matching workout outfit set for Christmas and was out wearing it on Boxing Day. As a mom myself, all I could think of was how much I would love another matching workout set. I’m serious. They’re great for workouts, quick errands, and day care or school drop-off. My latest favorite set is from Bombshell Sportswear. The set is both super soft and fits securely without any annoying squeezing. It’s getting the most compliments of all my sets. I wish I’d sized up with the bolero, but as an aerialist, my lat muscles are a little bulkier than an everyday person’s.
Have a partner who doesn’t need a matching set? Try some fantastic running shoes instead, which are even more useful for both workouts and daily life. WIRED reviewer Adrienne So says these R.A.D. shoes are fantastic for a range of uses, as they’re designed for gym, HIIT, CrossFit, and hybrid workouts and are soft enough for treadmill running. They look fantastic, too.
For the Beloved Bookworms
A Kindle is always a great gift for anyone who reads in any format. Funny enough, my siblings and I are about to buy one for my dad for his birthday (two weeks before Valentine’s Day), and I recommended my favorite pick, the Kindle Paperwhite, since the standard Kindle is a little too small for his 6-foot-4 frame to hunch down over, and he doesn’t read enough illustrated books to make the Colorsoft the right jump for him. If they already have a Kindle, I’m still in love with my matching PopSockets Kindle case and grip, and they’ve since launched a new Bookish collection with beautiful designs.
For Some Bedroom Spice
Looking to spice things up? These adventure boxes can add more fun to the bedroom without creating additional mental work for you and your partner. An offshoot from the Adventure Challenge, “The Adventure Challenge … In Bed” scratch-off date book has 50 date ideas designed specifically to help facilitate fun and connection in the bedroom. The dates are categorized by activity type in sections like food, dancing, “sexploration,” and more. Each date is covered by a black box, with only icons indicating required fields such as duration, cost, and more. Meanwhile, the Fantasy Box is a date-night box service offering a range of themes, from sexy wine tasting to a kinky poker night, all designed to help couples communicate and connect more intimately. Before opening the box, each partner will fill out a questionnaire of potential intimate acts, and this box comes with everything needed for a truly kinky night in: a satin blindfold, pleather paddle, lingerie, lube, massage gel, feather wand, mini vibrator, and silky wrist restraints. —Molly Higgins
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