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14 news posts in Engineering

Engineering

03 Nov 2023

Wearable devices may prevent astronauts getting ‘lost’ in space

by Angharad Brewer Gillham, Frontiers science writer Image/Shutterstock.com Losing your sense of where you are can be fatal enough for aircraft pilots: spatial disorientation is a leading cause of fatal aircraft accidents. But losing your orientation in space itself is even more dangerous. Scientists have now developed wearable devices called vibrotactors that, combined with specialized training, improve people’s ability to fight spatial disorientation and could help astronauts correct themselves when their perceptions can no longer be relied upon. The sky is no longer the limit — but taking flight is dangerous. In leaving the Earth’s surface, we lose many of the cues we need to orient ourselves, and that spatial disorientation can be deadly. Astronauts normally need intensive training to protect against it. But scientists have now found that wearable devices which vibrate to give orientation cues may boost the efficacy of this training significantly, making spaceflight slightly safer. “Long duration spaceflight will cause many physiological and psychological stressors which will make astronauts very susceptible to spatial disorientation,” said Dr Vivekanand P. Vimal of Brandeis University in the United States, lead author of the article in Frontiers in Physiology. “When disoriented, an astronaut will no longer be able to rely […]

Image courtesy of the Hub for Biotechnology in the Built Environment

Engineering

14 Jul 2023

Scientists knit futuristic eco-building designs using fungal networks

by Angharad Brewer Gillham, Frontiers science writer Image courtesy of the Hub for Biotechnology in the Built Environment Scientists have developed mycocrete, a paste made with the root network of fungus called mycelium, as a building material. Injecting this into a knitted textile framework creates a composite material which is stronger and more versatile than previous biomaterials made of fungi and could eventually be used to construct lightweight buildings with low environmental impact. Scientists hoping to reduce the environmental impact of the construction industry have developed a way to grow building materials using knitted molds and the root network of fungi. Although researchers have experimented with similar composites before, the shape and growth constraints of the organic material have made it hard to develop diverse applications that fulfil its potential. Using the knitted molds as a flexible framework or ‘formwork’, the scientists created a composite called ‘mycocrete’ which is stronger and more versatile in terms of shape and form, allowing the scientists to grow lightweight and relatively eco-friendly construction materials. “Our ambition is to transform the look, feel and wellbeing of architectural spaces using mycelium in combination with biobased materials such as wool, sawdust and cellulose,” said Dr Jane Scott […]

Engineering

22 May 2023

Can charismatic robots help teams be more creative?

by Angharad Brewer Gillham, Frontiers science writer Image/Shutterstock.com Scientists found that students given a task by a social robot with a voice programmed to be engaging and inspiring performed better and were more creative than students who received the task from an identical robot with a flat voice. Increasingly, social robots are being used for support in educational contexts. But does the sound of a social robot affect how well they perform, especially when dealing with teams of humans? Teamwork is a key factor in human creativity, boosting collaboration and new ideas. Danish scientists set out to understand whether robots using a voice designed to sound charismatic would be more successful as team creativity facilitators. “We had a robot instruct teams of students in a creativity task. The robot either used a confident, passionate — ie charismatic — tone of voice or a normal, matter-of-fact tone of voice,” said Dr Kerstin Fischer of the University of Southern Denmark, corresponding author of the study in Frontiers in Communication. “We found that when the robot spoke in a charismatic speaking style, students’ ideas were more original and more elaborate.” Can a robot be charismatic? We know that social robots acting as facilitators […]

Engineering

18 Apr 2023

Orb weaver spider glue properties evolve faster than their glue genes, scientists find

by Angharad Brewer Gillham, Frontiers science writer Image/Shutterstock.com Orb weaver spiders make the capture threads of their webs sticky with an aqueous glue made in special aggregate glands. Scientists studied different species living in different environments to see how the glue changed and found that although the glue was mostly made of the same components, the proportions of the proteins involved were different, changing the glue’s properties. Spiders that don’t weave good silk don’t get to eat. The silk spiders produce which creates their webs is key to their survival – but spiders live in many different places which require webs fine-tuned for local success. Scientists studied the glue that makes orb weaver spiders’ webs sticky to understand how its material properties vary in different conditions. “Discovering the sticky protein components of biological glues opens the doors to determining how material properties evolve,” said Dr Nadia Ayoub of Washington and Lee University, co-corresponding author of the study published in Frontiers in Ecology and Evolution. “Spider silk fibers and glues represent a fantastic model for answering such questions since they are primarily made of proteins and proteins are encoded by genes.” “Spider silks and glues have huge biomimetic potential,” added Dr […]

Engineering

09 Feb 2023

Human test subjects may no longer be needed for mosquito bite trials thanks to invention of new biomaterial

by Angharad Brewer Gillham, Frontiers science writer Image/Shutterstock.com Studies on mosquito feeding behavior are crucial to fighting malaria, dengue, and other mosquito-borne pathogens – but traditionally, they require humans or animals to act as meals for the mosquitoes. Scientists have developed a biomaterial which mimics skin, right down to blood under the surface, to make studies on mosquito feeding easier to run. Mosquitoes: the world’s deadliest animal. These tiny flying insects are vectors for dengue fever, yellow fever, Zika, malaria, and many other illnesses which affect millions of people around the world, with a significant morbidity and mortality burden. Because they spread disease when they bite people, understanding their feeding behavior is critical to reducing the harm they do. But how to study mosquito feeding behavior without giving them a live meal? A collaboration between Rice University and Tulane University in the US has developed a biomaterial which could eliminate the need for human volunteers or animal subjects in mosquito bite research. “Several groups are dedicated to finding ways to stop mosquitoes from biting, but bringing new repellents to market is challenging,” said Prof Omid Veiseh, Rice University, corresponding author of the study published in Frontiers in Bioengineering and Biotechnology. […]

Engineering

07 Nov 2022

5 articles you need to check out on the future of materials research

By Angharad Brewer Gillham, Frontiers science writer Image: Shutterstock.com In a fast-moving field of research like materials science, it can be difficult to keep up with the latest breakthroughs. Now at Frontiers, we highlight just five of the latest research articles to shed more light on the way we build our world around us, published by top researchers in the Frontiers in Materials Research Topic ‘Horizons in Materials’. Growing green technology: from trees to tech Scientists aiming to power the appliances of the future are developing special phenolic compounds from resins instead of petrol – a first step towards organic electrodes. Since biomass is the only green, renewable source of carbon materials, carbon-based electrodes for new-generation metal-ion batteries could be a more eco-friendly replacement for lithium-ion batteries. Some of the methods to make these compounds currently available are problematic because they require dangerously high temperatures and pressures and hazardous chemicals, but new methods are being developed which use mechanical forces instead. If these compounds can be developed into renewable sources for electronics, Dr Javier Quílez-Bermejo and his team at the Université de Lorraine point out, the potential for revolutionizing electronic devices would be huge, opening the way for greener fuel […]

Engineering

03 Mar 2022

4 articles you need to check out on the future of building engineering

By Colm Gorey, Science Communications Manager Image: Robert Kneschke/Shutterstock.com The infrastructure that makes up our towns and cities is undergoing a technological and scientific revolution. Now, to help shine a light on some of these significant changes and what it means for engineering, Frontiers highlights just four of the latest research articles helping shape the future of construction. For most of the last century, humanity as a species was focused almost solely on building larger cities as fast as possible and with little thought on its impact to the environment. Now, with the climate crisis an unavoidable reality, this old style of thinking is being replaced by not only more sustainable engineering practices, but ones that revolutionize our very understanding of how we build. Here are just four recent articles published to Frontiers from some of the top researchers in their field as part of the Research Topic ‘Horizons in Built Environment‘. Comprehensive review on the dynamic and seismic behavior of flat-bottom cylindrical silos filled with granular material Storage containers of bulk material are known as bins, silos or even bunkers. Although there is no globally accepted definition for each of the previous terms, ‘bins’ or ‘bunkers’ are commonly used […]

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