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Submission + - Inventwood is about to mass produce wood thats stronger than Steel. (techcrunch.com)

ndsurvivor writes: It sounds like the stuff of science fiction, but it actually comes from a lab in Maryland.

In 2018, Liangbing Hu, a materials scientist at the University of Maryland, devised a way to turn ordinary wood into a material stronger than steel. It seemed like yet another headline-grabbing discovery that wouldn’t make it out of the lab.

“All these people came to him,” said Alex Lau, CEO of InventWood, “He’s like, OK, this is amazing, but I’m a university professor. I don’t know quite what to do about it.”

Rather than give up, Hu spent the next few years refining the technology, reducing the time it took to make the material from more than a week to a few hours. Soon, it was ready to commercialize, and he licensed the technology to InventWood.

Now, the startup’s first batches of Superwood will be produced starting this summer.

“Right now, coming out of this first-of-a-kind commercial plant — so it’s a smaller plant — we’re focused on skin applications,” Lau said. “Eventually we want to get to the bones of the building. Ninety percent of the carbon impact from buildings is concrete and steel in the construction of the building.”

To build the factory, InventWood has raised $15 million in the first close of a Series A round. The round was led by the Grantham Foundation with participation from Baruch Future Ventures, Builders Vision, and Muus Climate Partners, the company exclusively told TechCrunch.

Submission + - Antarctica's Ice Sheet Grows for the First Time in Decades

RoccamOccam writes: Previous studies have consistently shown a long-term trend of mass loss, particularly in West Antarctica and the Antarctic Peninsula, while glaciers in East Antarctica appeared relatively stable. However, a recent study led by Dr. Wang and Prof. Shen at Tongji University has found a surprising shift: between 2021 and 2023, the AIS experienced a record-breaking increase in overall mass.

Submission + - Protests erupt in China after furious workers demand back pay

RoccamOccam writes: Protests from furious factory workers in China demanding back pay are spreading across the country after President Trump’s tariffs on Chinese imports began impacting the communist nation’s economy.

Unrest has been reported across the country as workers have taken to the streets protesting unpaid wages and challenging unfair dismissals following the closures of factories squeezed by US tariffs, according to Radio Free Asia.

Submission + - Peking U. Just Made the World's Fastest Transistor and It Is Not Made of Silicon (zmescience.com)

schwit1 writes: The new transistor runs 40% faster and uses less power.

With a slender sheet of lab-grown bismuth and an architecture unlike anything inside today’s silicon chips, they’ve built what they call the world’s fastest and most efficient transistor. Not only does it outperform the best processors made by Intel and TSMC, but it also uses less energy doing so. And most important of all, there’s no trace of silicon involved.

This two-dimensional, silicon-free transistor represents a radical rethinking of what chips can be and how they can be made.

Rather than silicon, the Peking University team built their transistor using bismuth oxyselenide (BiOSe) for the channel, and bismuth selenite oxide (BiSeO) as the gate material.

These materials are part of a class known as two-dimensional semiconductors — atomically thin sheets with exceptional electrical properties. Bismuth oxyselenide, in particular, offers something silicon struggles with at ultra-small sizes: speed.

Electrons move through it faster, even when packed into tiny spaces. It also has a higher dielectric constant, meaning it can hold and control electric charge more efficiently. That makes for faster switching, reduced energy loss, and — very importantly — a lower chance of overheating.

“This reduces electron scattering and current loss, allowing electrons to flow with almost no resistance, akin to water moving through a smooth pipe,” Peng explained.

The interface between these materials is also smoother than that of common semiconductor-oxide combinations used in industry today. That means fewer defects and less electrical noise.

All of this adds up to stunning results. According to the team, their transistor can run 40% faster than today’s most advanced 3-nanometer silicon chips — and it does so while using 10% less energy.

Submission + - AI-driven robot installs nearly 10,000 solar modules in Australia (renewablesnow.com)

AmiMoJo writes: Chinese tech company Leapting has successfully completed its first commercial deployment of photovoltaic (PV) modules with an AI-driven solar module mounting robot in Australia. The Chinese company was tasked with supporting the installation of French Neoen’s (EPA:NEOEN) 350-MW/440-MWp Culcairn Solar Farm in New South Wales’ Riverina region. Shanghai-based Leapting said this week that its intelligent robot has installed almost 10,000 modules at an “efficient, safe, and stable” pace that has “significantly” reduced the original construction timeline.

Litian Intelligent was deployed at the Australian project site in early February. The machine has a 2.5-metre-high robotic arm sitting on a self-guided, self-propelled crawler. Equipped with a navigation system, and visual recognition technology, it can lift and mount PV panels weighing up to 30 kilograms. By replacing labour-intensive manual operations, the robot shortens the module installation cycle by 25%, while the installation efficiency increases three to five times as compared to manual labour and is easily adapted to complex environments, Leapting says.

Comment Quotes from another article about 3-D building. (Score 1) 45

Article:

12 Examples of 3D-Printed Houses
3D-printed houses can be made in a matter of hours at a fraction of the cost of conventional construction methods.

Quotes:

"With minimal human oversight, these highly customizable structures can be built on-site or off-site within a matter of hours at a fraction of the cost."

"Following a digital blueprint, a 3D printer will dispense a paste-like mixture. This will consist of choice ingredients — often a cement blend — but can range from sand and special polymers to bio-resins, like soil, clay or wood flour, which is a fine sawdust mixed with a corn-based binder."

"ICON, a 3D-printing construction company, said it could produce a 600 to 800-square-foot, economy-sized building for as low as $4,000 in 24 hours."

Comment Re:"user friendliness" (Score 1) 286

MacOS does allow | in filenames, as does FreeBSD. Windows does not.
Which leads to problems if I save a web page as pdf on the Nextcloud share folder on my Mac and later try to access it on the same Nextcloud share folder on my Windows pc.
Because most web browsers have the default filename as the section of the website, and that is generally a decently descriptive name for the file, and there are often | characters in that. On Windows they get changed to something else, usually _, but MacOS web browsers don't do that, because they don't need to.

Submission + - China shares rare Moon rocks (bbc.co.uk)

AmiMoJo writes: China will let scientists from six countries, including the US, examine the rocks it collected from the Moon — a scientific collaboration that comes as the two countries remain locked in a bitter trade war.

Two Nasa-funded US institutions have been granted access to the lunar samples collected by the Chang'e-5 mission in 2020, the China National Space Administration (CNSA) said on Thursday.

CNSA chief Shan Zhongde said that the samples were "a shared treasure for all humanity," local media reported.

Chinese researchers have not been able to access Nasa's Moon samples because of restrictions imposed by US lawmakers on the space agency's collaboration with China.

Under the 2011 law, Nasa is banned from collaboration with China or any Chinese-owned companies unless it is specifically authorised by Congress.

But John Logsdon, the former director of the Space Policy Institute at George Washington University, told BBC Newshour that the latest exchange of Moon rocks have "very little to do with politics".

While there are controls on space technology, the examination of lunar samples had "nothing of military significance", he said.

"It's international cooperation in science which is the norm."

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