Shanghai Is Now Home to the World’s Longest 3D-Printed Bridge

World's largest 3D-printed bridge in Shanghai, China.
World's largest 3D-printed bridge in Shanghai, China.
Tsinghua University

Small items like toys and shoes aren't the only things 3D printers can make. As a team of architects from China's Tsinghua University School of Architecture recently demonstrated, the machines can be used to print sturdy bridges large enough to span waterways.

As dezeen reports, at 86 feet in length, the new pedestrian bridge on a canal in Shanghai's Baoshan District is the longest 3D-printed bridge on Earth. Designed by the university's Zoina Land Joint Research Center for Digital Architecture (JCDA) and constructed by Shanghai Wisdom Bay Investment Management Company, it consists of 176 concrete units. The parts were printed from two robotic-arm 3D-printing systems over 19 days.

The 3D-printing technology cut down on costs as well as construction time. According to Tsinghua University, the project cost just two-thirds of what it would have using conventional materials and engineering methods.

Even though their approach was futuristic, the architecture team paid homage to a much older bridge in a different part of the country. The new bridge's arched structure is inspired by that of the 1400-year-old Anji Bridge in Zhaoxian, the oldest standing bridge in China (and the world's oldest open-spandrel arch bridge).

The bridge in Shanghai may be the longest 3D-printed bridge in the world, but it isn't the first. Last year, a 3D-printed steel bridge was unveiled in Amsterdam.

[h/t dezeen]

What People In the '50s and '60s Thought Houses Would Look Like in 1986

The Monsanto House of the Future was an attraction at Disneyland's Tomorrowland 1957 to 1967.
The Monsanto House of the Future was an attraction at Disneyland's Tomorrowland 1957 to 1967.
Photo courtesy Orange County Archives/Wikimedia Commons

In 1957, Monsanto demonstrated its vision for future housing, emphasizing one word: plastics. Its House of the Future was displayed at Disneyland from 1957 through 1967, and it envisioned a future home from the then-distant future of 1986. The house featured lavish conveniences including a microwave oven, ultrasonic dishwasher (for plastic dishes, of course), "cold zones" to replace refrigerators and freezers (with a special zone for irradiated foods), and dimmable ceiling lights—and that's just the kitchen.

While the House of the Future was a little silly around its plastic edges, a lot of its vision was actually correct. We do indeed use microwaves, we have lots of plasticware and even plastic furniture (hello IKEA), and Monsanto's vision of easy cleanup flooring is very realistic (though plastic may not be the most common material, Monsanto's heart was in the right place). Some details like electric toothbrushes and intercom/security systems ring true. The exterior architecture of the house was slightly Jetsons, but frankly, I've seen condos with very similar design cues. The Danish Modern living room looks thoroughly modern-retro to me (although it lacks art on the walls). Check out these videos and see what 1957 thought 1986 would look like. How'd they do?

One big mistake in its vision that stands out to me is the use of height adjustment on virtually everything (right down the children's sink)—everything in the house uses tracks to hide when not in use. While we have a little of that today, it isn't exactly pervasive; it just looks cool in a demo. The other major difference is Monsanto's attempt to sell plastic as a classy material for everything. On the whole, people of the future (meaning us) don't see plastic as classy, and indeed have gone retro on what we think denotes quality—we're looking for steel, wood, and even materials like cork that had no place in the House of the Future. On the flip side, we seem just fine with buying plastic stuff (even pretty stylish plastic) if it's a bargain (again, IKEA and even Target come to mind here).

In a little side-trivia, the House of the Future was very hard to demolish. Apparently a wrecking ball bounced right off the shell (plastics!) so the house had to be ripped to pieces with saws, taking weeks. 

Susan B. Anthony’s Childhood Home in Upstate New York Is Getting a $700,000 Renovation

George Grantham Bain Collection, Library of Congress // No Known Restrictions on Publication
George Grantham Bain Collection, Library of Congress // No Known Restrictions on Publication

In 1833, a 13-year-old Susan B. Anthony moved with her family to a two-story brick house in Battenville, New York, where her father managed a cotton mill. Though Anthony only lived there a few years before financial troubles caused her family to relocate once again, it was in that house that she first became aware of the deplorable state of women’s rights—setting her on a path to change the course of history.

According to The Cultural Landscape Foundation, Anthony’s father started homeschooling her after a local teacher refused to teach Anthony long division on the grounds that women didn’t need the skill. Then, a temporary stint at her father’s mill revealed that the wages of many female employees went directly to their husbands or fathers, and Anthony learned about the gender pay gap firsthand when she was hired as a schoolteacher for a much lower salary than her male predecessor.

Right now, there are only two small indicators of Anthony’s history in the Battenville house—a placard on a nearby stone retaining wall and a sign on a post in the front yard—and the house itself is riddled with black mold and moisture damage.

But that’ll change soon: House Beautiful reports that New York’s Office of Parks, Recreation and Historic Preservation, which purchased the foreclosed property for just $1 back in 2006, is now planning a $700,000 renovation that includes general repairs, drainage improvements, and mold abatement. A considerable portion of those funds was collected by Senator Betty Little and Assembly member Carrie Woerner.

Whether the house will eventually become a museum remains to be seen. It’s located on a perilous curve on Route 29, and there’s very limited surrounding land or space for parking. Having said that, locals are committed to finding a worthy purpose for it after the restoration is complete. Debi Craig, former president of the Washington County Historical Society, told the Times Union that she thinks there’s potential for an international research center or library on women’s rights.

Regardless of what the Battenville house’s second life ends up looking like, the focus on this particular historic site is perfectly timed—not only does 2020 mark the 100th anniversary of the ratification of the 19th Amendment, it’s also Susan B. Anthony’s 200th birthday.

Learn more about the trailblazing suffragette here.

[h/t House Beautiful]

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