Tech
Tiny explosions and soft materials make onscreen braille more robust
From texting on a smart phone to ordering train tickets at a kiosk, touch screens are ubiquitous and, in most cases, relatively reliable. But for people who are blind or visually impaired and use electronic braille devices, the technology can be vulnerable to the elements, easily broken or clogged by dirt, and difficult to repair.
By combining the design principles and materials of soft robotics with microscale combustions, Cornell researchers have now created a high-resolution electronic tactile display that is more robust than other haptic braille systems and can operate in messy, unpredictable environments.
The technology also has potential applications in teleoperation, automation and could bring more tactile experiences to virtual reality.
The research is published in Science Robotics. The paper’s co-first authors are Ronald Heisser, Ph.D. ’23 and postdoctoral researcher Khoi Ly.
“The central premise of this work is two-fold: using energy stored in fluid to reduce the complexity of mass transport, and then thermal control of pressure to remove the requirements of complex valving,” said Rob Shepherd, the John F. Carr Professor of Mechanical Engineering in Cornell Engineering and the paper’s senior author.
“Very small amounts of combustible fuel allow us to create high-pressure actuation for tactile feedback wherever we like using small fluid channels, and cooling the gas during the reaction means this pressure stays localized and does not create pressure where we do not want it,” he said. “This chemical and thermal approach to tactile feedback solves the long-standing “Holy Braille’ challenge.”
The majority of refreshable electronic tactile displays contain dozens of tiny, intricate components in a single braille cell, which has six raised dots. Considering that a page of braille can hold upwards of 6,000 dots, that adds up to a lot of moving parts, all at risk of being jostled or damaged. Also, most refreshable displays only have a single line of braille, with a maximum of roughly 40 characters, which can be extremely limiting for readers, according to Heisser.
“Now people want to have multi-line displays so you can show pictures, or if you want to edit a spreadsheet or write computer code and read it back in braille,” he said.
Rather than relying on electromechanical systems—such as motors, hydraulics or tethered pumps—to power their tactile displays, Shepherd’s Organic Robotics Lab has taken a more explosive approach: micro combustion. In 2021, they unveiled a system in which liquid metal electrodes caused a spark to ignite a microscale volume of premixed methane and oxygen. The rapid combustion forced a haptic array of densely packed, 3-millimeter-wide actuators to cause molded silicone membrane dots—their form determined by a magnetic latching system—to pop up.
For the new iteration, the researchers created a 10-by-10-dot array of 2-millimeter-wide soft actuators, which are eversible—i.e., able to be turned inside out. When triggered by a mini combustion of oxygen and butane, the dots pop up in 0.24 milliseconds and remain fixed in place by virtue of their domed shape until a vacuum sucks them down. The untethered system maintains the elegance of soft robotics, Heisser said, resulting in something that is less bulky, less expensive and more resilient—”far beyond what typical braille displays are like.”
“We opted to have this rubber format where we’re molding separate components together, but because we’re kind of molding it all in one go and adhering everything, you have sheets of rubber,” said Heisser, currently a postdoctoral researcher at the Massachusetts Institute of Technology. “So now, instead of having 1,000 moving parts, we just have a few parts, and these parts aren’t sliding against each other. They’re integrated in this way that makes it simpler from a manufacturing and use standpoint.”
The silicone sheets would be replaceable, extending the lifespan of the device, and could be scaled up to include a larger number of braille characters while still being relatively portable. The hermetically sealed design also keeps out dirt and troublesome liquids.
“From a maintenance standpoint, if you want to give someone the ability to read braille in a public setting, like a museum or restaurant or sports game, we think this sort of display would be much more appropriate, more reliable,” Heisser said. “So someone spills beer on the braille display, is it going to survive? We think, in our case, yes, you can just wipe it down.”
This type of technology has numerous medical and industrial applications in which the sense of touch is important, from mimicking muscle to providing high-resolution haptic feedback during surgery or from automated machines, in addition to increasing accessibility and literacy for people who are blind or visually impaired.
“As technologies become more and more digitized, as we rely more and more on computer access, human-computer interaction becomes essential,” Heisser said. “Reading braille is equivalent to literacy. The workaround has been screen-reading technologies that allow you to interact with the computer, but don’t encourage your cognitive fluency.”
More information:
Ronald H. Heisser et al, Explosion-powered eversible tactile displays, Science Robotics (2025). DOI: 10.1126/scirobotics.adu2381
Citation:
Tiny explosions and soft materials make onscreen braille more robust (2025, September 30)
retrieved 30 September 2025
from https://techxplore.com/news/2025-09-tiny-explosions-soft-materials-onscreen.html
This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no
part may be reproduced without the written permission. The content is provided for information purposes only.
Tech
A Collision with Space Debris Leaves 3 Chinese Astronauts Stranded in Orbit
Wrapping up 204 days in orbit, three Chinese astronauts flew back to Earth aboard a Shenzhou spacecraft Friday, leaving three crewmates behind on the Tiangong space station with a busted lifeboat.
Commander Chen Dong, concluding his third trip to space, and rookie crewmates Chen Zhongrui and Wang Jie touched down inside their spacecraft at the Dongfeng landing zone at 1:29 am EST (06:29 UTC) Friday. The parachute-assisted landing occurred in the mid-afternoon at the return zone, located in the remote Gobi Desert of northwestern China.
Chinese space officials upended operations on the country’s Tiangong space lab last week after astronauts found damage to one of two Shenzhou return capsules docked at the station. The China Manned Space Agency, run by the country’s military, announced changes to the space station’s flight plan November 4, the day before three crew members were supposed to depart and fly home.
Chen and his crewmates were preparing to board the Shenzhou 20 spacecraft for the ride back to Earth a few days after the arrival of three replacement crew members on the newly launched Shenzhou 21 capsule. Shenzhou 20 is the same spacecraft that launched Chen’s crew in April.
But a little more than a week ago, Chinese officials said the Shenzhou 20 spacecraft was “suspected of being impacted by small space debris” and confirmed the return trip would be postponed. Officials provided no additional details.
China’s human spaceflight agency released a cryptic statement earlier this week saying preparations were underway for the crew’s undocking and landing, but the circumstances of the return remained opaque until hours before the astronauts’ homecoming. Finally, officials confirmed the details of the return to Earth late Thursday.
“Based on preliminary analysis of photographs, design review, simulation analysis, and wind tunnel tests, a comprehensive assessment determined that the Shenzhou 20 manned spacecraft’s return capsule window glass had developed a minor crack, most likely caused by an external impact from space debris,” the China Manned Space Agency wrote on Weibo, the Chinese social media platform. “This does not meet the release conditions for a safe manned return.”
Swapping Spacecraft in Low-Earth Orbit
With their original spacecraft deemed unsafe, Chen and his crewmates instead rode back to Earth on the newer Shenzhou 21 craft that launched and arrived at the Tiangong station October 31. The three astronauts who launched on Shenzhou 21—Zhang Lu, Wu Fei, and Zhang Hongzhang—remain aboard the nearly 100-metric ton space station with only the damaged Shenzhou 20 craft available to bring them home.
China’s line of Shenzhou spaceships not only provide transportation to and from low-Earth orbit, they also serve as lifeboats to evacuate astronauts from the Chinese space station in the event of an in-flight emergency, such as major failures or a medical crisis. They serve the same role as Russian Soyuz and SpaceX Crew Dragon vehicles flying to and from the International Space Station.
Another Shenzhou spacecraft, Shenzhou 22, “will be launched at a later date,” the China Manned Space Agency said in a statement. Shenzhou 20 will remain in orbit to “continue relevant experiments.” The Tiangong lab is designed to support crews of six for only short periods, with longer stays of three astronauts.
Tech
A changing reporting landscape at the intersection of accounting and cryptocurrency
Cryptocurrency continues to reshape the financial landscape. As cryptocurrency moves from niche to mainstream, companies are grappling with how to account for these volatile digital assets. New research from Scheller College of Business accounting professor Robbie Moon, and his co-authors Chelsea M. Anderson, Vivian W. Fang, and Jonathan E. Shipman, sheds light on how U.S. public companies have navigated crypto holdings and accounting practices over the past decade.
ASU 2023-08, the Financial Accounting Standards Board’s (FASB) newly enacted rule, aims to bring clarity and consistency to crypto asset reporting with the mandate for fair value reporting. Moon’s research, which examined a comprehensive set of companies from 2013 to 2022, looks at the exponential rise in corporate crypto investments and the diverse, and often inconsistent, ways firms have reported them.
In “Accounting for Cryptocurrencies,” Moon and his co-authors work to better understand this pivotal point in financial reporting with research that dives into why firms hold crypto—whether for mining, payment acceptance, or investment—and how reporting practices have evolved to meet this current moment. The work is published in the Journal of Accounting Research.
Keep reading to learn more about Moon’s research and why it matters right now.
Why do companies hold cryptocurrencies, and how has this changed over time?
Companies hold cryptocurrency for three main reasons: they mine it, they accept it as payment, or they consider it an investment. Early on, most businesses kept crypto because customers used it to pay for goods and services. Around 2017, that trend declined, and more companies began mining crypto themselves. Today, mining accounts for about half of corporate crypto holdings, while payment acceptance and investment make up the rest.
What were the main challenges companies face when trying to report cryptocurrency holdings in their financial statements?
Until the end of 2023, there were no official rules on how companies should report cryptocurrency on their financial statements. Back in 2018, the Big Four accounting firms (Deloitte, PwC, EY, and KPMG) stepped in with guidance, suggesting that crypto be treated like intangible assets, similar to things like patents or trademarks. This is known as the impairment model.
What is the difference between the ‘fair value model’ and the ‘impairment model’ for accounting crypto assets, and why does it matter?
The two accounting methods differ in how they handle changes in crypto value. The fair value model updates the value of a company’s crypto to match current market prices every reporting period. If the price goes up or down, the change shows up on the company’s income statement as a gain or loss.
The impairment model only lets companies record losses when the value drops below what they paid. If the price goes up, they can’t record the increase.
The difference in the two approaches can best be seen when crypto prices rise. Under the impairment model, companies’ balance sheets understate the true value of the crypto since the gains cannot be recorded. The fair value model allows companies to adjust the balance sheet value of crypto as market prices change.
What factors led ASU 2023–08 to favor fair value reporting?
When the FASB was trying to decide if they should add crypto accounting to their standard setting agenda, they reached out to the public for feedback. The response was overwhelming and most practitioners and firms called for the use of the fair value model.
How do big accounting firms, like Deloitte or PwC, influence how companies report their crypto holdings?
When there aren’t official rules for complex issues like crypto accounting, the Big Four firms often step in to guide companies. In 2018, they recommended using the impairment model, which they viewed as most appropriate based on existing standards. After that, most companies switched from fair value reporting to the impairment approach.
Their guidance in 2018 was based on what was allowed under the standards at that time. With the new rule in place, the firms will likely help clients manage the transition.
Does using fair value accounting for crypto make a company’s stock price more volatile or its earnings reports more useful to investors?
The primary downside of using a fair value model for a risky asset like crypto is how volatility affects earnings. Moon’s research suggests that stock price volatility increases for firms using the fair value model, and it doesn’t appear the model makes earnings more useful for investors. That said, the results should be viewed cautiously because the study’s sample largely consisted of smaller companies.
Why does this research matter right now?
This research matters because more companies are investing in cryptocurrency. That trend is only expected to grow. This research looks at how businesses handled crypto before official rules came out in 2023, showing that many treated it like traditional investments. This provides a baseline against which future research can evaluate the new rule.
The research also warns that the fair value approach could make stock prices more volatile without necessarily making earnings reports more useful for investors.
More information:
Chelsea M. Anderson et al, Accounting for Cryptocurrencies*, Journal of Accounting Research (2025). DOI: 10.1111/1475-679x.70018
Citation:
A changing reporting landscape at the intersection of accounting and cryptocurrency (2025, November 17)
retrieved 17 November 2025
from https://techxplore.com/news/2025-11-landscape-intersection-accounting-cryptocurrency.html
This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no
part may be reproduced without the written permission. The content is provided for information purposes only.
Tech
Technology innovation drives accountancy job changes | Computer Weekly
Services provided by accountants can help small business owners manage cash flow better, a study commission by Intuit Software has reported, but the role of accounting is changing as more technologies such as artificial intelligence (AI) are embedded into accounting software packages.
The study, conducted by Chris Brauer, director of innovation in the Institute of Management Studies (IMS) at Goldsmiths, University of London, Symmetry Research and the Association of Chartered Certified Accountants (ACCA), noted that there is a substantial opportunity for both SMEs and accountants to drive meaningful economic impact.
Based on a survey of 4,000 small and mid-sized businesses, the study reported that 71% of the businesses polled agree that professional accounting services improve cash flow management, which makes both current and future business decision-making run more smoothly. In addition, 73.1% said that using professional accounting services has strengthened their financial reporting, and this alone has offered increasing opportunities to get bank loans or government grants.
Around 80% of SME leaders who have used an accountant said it has had either a moderate, significant or transformational effect on their financial literacy. Accountants can also serve an integral role as strategic financial advisors, counselling on business planning, tax compliance and financial management. Among the challenges facing the accounting profession is that the trajectory AI is taking may well remove much of the work they need to do in terms of how small business owners manage their finances.
Marianna Tressel, executive vice-president at Intuit, believes the way AI changes business is just getting started, adding: “We’re just at the beginning, at the first few innings of what will be possible with AI and how people use AI.”
According to Tressel, AI is an accelerant in everybody’s work: “We were talking to a lot of small businesses about how they use AI for all sorts of elements of their work. It’s an accelerant, but also it’s a disruptor.”
Tressel believes conversational AI powered by a custom large model changes human computer interaction and this is something Intuit has begun doing, with a custom LLM based on open source technology, which, she said, can handle queries extremely cost effectively. This potentially has an impact on the role of an accountant.
Aaron Patrick, head of accounts at the UK-based cloud accountancy firm Boffix, said: “If we’re really honest, accountants and bookkeepers are starting to become less relevant.” However, for Patrick, there is now an opportunity for accountants and book keepers to become business advisers and start helping clients by showing value to their clients.
“Niche expertise is becoming a game changer for accountants. By specialising in specific sectors [such as] e-commerce, we can offer tailored advice that directly impacts a client’s success. Coupled with proactive communication, we’re not just checking boxes anymore – we’re building long-term relationships where we actively help SMEs make strategic decisions, thrive, and grow.”
For Intuit customers, this opportunity is made possible through its $12bn acquisition of MailChimp in 2021. The developer of QuickBooks used the acquisition as an opportunity to re-engineer its applications as a new platform.
In October, Intuit launched Intuit Accountant Suite, an AI-native platform, which the company claims provides accounting firms with the tools they need to scale and manage their clients, firms and teams, all in one place.
Discussing how the technology that is built into the new Intuit platform changes the role of an accountant, Patrick said: “We now have an opportunity to understand why sales has gone up or why expenses has gone down.”
According to Patrick, the new Intuit platform provides access to data silos: “As accountants, we’re going to have the opportunity not only to be able to tell the story based on the numbers, but understand what’s happened with the CRM system, such as assess how a company’s marketing is going.”
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