科学 新闻

Single-use health care items—everything from gloves and blood bags to surgical equipment—have become a growing environmental problem worldwide. Their use has increased sharply in recent years, and there are currently no methods for recycling such plastic medical waste.

Textile muscles is a young research field that originated in Sweden at Linköping University and the University of Borås. In the long run, the technology can be built into clothes that can give an extra boost during heavy lifting, give hugs at a distance and help the visually impaired navigate the urban environment.

Researchers led by a team at the University of Tokyo have turned concrete from a demolished school building and carbon dioxide (CO2) from the air into new blocks strong enough to build a house with.

We are living in an era of astonishing data proliferation and the sharing of user-created content across all kinds of media, from social networks to news sites, e-commerce reviews to endless forums for every kind of interest and niche.

When it comes to innovative technologies, inventors often find inspiration in the most unexpected places. A former salesman, Akeem Shannon, was inspired by his uncle, who worked as an engineer at NASA's Marshall Space Flight Center in Huntsville, Alabama, to research the agency's published technologies. He came across a sticky NASA invention that would help him launch his breakout product.

Researchers from Islamic Azad University have developed new parity-preserving reversible multipliers that reduce costs and enhance error detection in quantum circuits. This advancement contributes to the ongoing efforts to make quantum computing more efficient and fault-tolerant.

More than 8,000 man-made satellites orbit planet Earth today, many of which were launched into space decades ago. Repairing and maintaining the proper operation of these satellites is not always easy and often requires carefully planned and targeted interventions.

Many airline passengers naturally worry about flying. But on a worldwide basis, commercial air travel keeps getting safer, according to a new study by MIT researchers.

A preliminary 5.2-magnitude earthquake struck near Bakersfield and shook all the way to Los Angeles County.

A new study published in the journal Nature suggests ancestors of an early human species​ were slightly shorter than previously thought.

From a city's rush-hour commute to the operations of a cross-country transport fleet, a new tool from the U.S. Department of Energy's Argonne National Laboratory can paint a picture of how vehicles are using energy on a large scale.

Covering the world's highways with solar panel roofs could dramatically reduce carbon dioxide emissions and road accidents, according to new research. The ambitious estimate, which calculated the costs and benefits of installing solar roofs over highways globally, could reduce the world's carbon emissions by approximately 28% by curtailing the need for fossil fuels.

Composite laminates, consisting of bonded layers of different materials, find extensive applications in various industries, including aerospace, automobiles, and shipbuilding sectors due to their exceptional strength-to-body-weight ratio and tailored mechanical properties. Due to different strengths and properties resulting from different fiber directions, the design analysis and optimization of composite laminates requires repetitive numerical simulations to explore various layer materials and stacking sequences.

Smart cities are crucial for sustainable urban development as they manage growing populations through advanced sensor networks and digital communication systems. Smart monitoring, a key service in these cities, oversees both indoor and outdoor environments. For example, it can enhance road safety for autonomous vehicles by predicting and alerting them about potential accidents at intersections. Indoors, it supports vulnerable individuals by automatically notifying authorities during emergencies.

Summer 2024's record heat is creating problems for transportation infrastructure, from roads to rails.

As the most abundant energy source on earth, solar energy is a promising alternative in the pivot toward clean energy. However, current commercial solar cells are only 20% efficient in converting light into usable energy.

Electronic waste, or e-waste, is a rapidly growing global problem, and it's expected to worsen with the production of new kinds of flexible electronics for robotics, wearable devices, health monitors, and other new applications, including single-use devices.

Holding the increase in the average global temperature to less than 2ºC above pre-industrial levels and limiting this increase to 1.5ºC is the challenge that 190 countries signed in the Paris Agreement for the year 2050. To make this possible, each state must present national plans to reduce greenhouse gas emissions and ensure that they are updated every five years.

In recent years, many research teams have been trying to design artificial skins with electronic properties for humanoid robots, smart prosthetics and other bio-inspired systems. These skins could sense the textures and tactile properties of objects, allowing various systems to plan their actions based on the information they detected.

The team of archaeologists found the stash of Persian coins, alongside other artifacts, in a small pot buried under a large house in the center of the ancient Greek city of Notion.