科学 新闻

Some of the greatest discoveries don't come merely from observations but from thinking. Einstein developed theories about relativity through thought experiments, and Galileo derived insights about gravity through mental simulations.

马萨诸塞大学阿默斯特分校研究人员的一项新研究证明了自制橡皮泥在读取大脑、心脏、肌肉和眼睛活动方面的有效性。该研究发表在《Device》杂志上，概述了这种材料的导电特性，即所谓的“软电路”。

Amid an outbreak of recent wildfires in California, Google announced a commitment to spend $13 million to improve satellite imaging to help track and detect wildfires, starting as early as next year.

On Sept. 12, OpenAI announced a new ChatGPT model that the company says is substantially better at math and science than previous versions, which struggled with reasoning. An earlier model scored just 13% on the qualifying exam for the International Mathematical Olympiad (the top high school math competition). The new model, called "o1," raised that score to 83%.

Infrastructure often suffers severe damage due to both natural geotechnical hazards, such as floods or earthquakes, and man-made ones such as underground construction work and excavations.

A study finds that ChatGPT expresses cultural values resembling people in English-speaking and Protestant European countries. Large language models, including ChatGPT, are trained on data that overrepresent certain countries and cultures, raising the possibility that the output from these models may be culturally biased.

A discovery six years ago took the condensed-matter physics world by storm: Ultra-thin carbon stacked in two slightly askew layers became a superconductor, and changing the twist angle between layers could toggle their electrical properties. The landmark 2018 paper describing "magic-angle graphene superlattices" launched a new field called "twistronics," and the first author was then-MIT graduate student and recent Harvard Junior Fellow Yuan Cao.

重复利用二氧化碳制造可持续燃料的关键一步是将碳原子链接在一起，密歇根大学开发的人工光合作用系统可以将其中的两个碳原子结合成具有领先性能的碳氢化合物。

如果到 2030 年，目前正在建设和处于后期许可阶段的所有高压输电线路均建在美国西部，从而能够建设新的可再生能源项目，那么美国西部的二氧化碳排放量将比 2019 年减少 73%。2005年。

受人体骨骼坚韧外层结构的启发，普林斯顿大学的工程师开发了一种水泥基材料，其抗损伤能力是标准材料的 5.6 倍。与传统的脆性水泥基材料不同，仿生设计使该材料能够抵抗开裂并避免突然失效。

A research team has pushed the boundaries of solar cell technology. On July 3, a new world record for perovskite solar cell performance set by Professor Xu's (University of Science and Technology of China [USTC]) team was announced with a certified stable efficiency of 26.7%. The work is published in the journal Progress in Photovoltaics: Research and Applications.

NCM811 materials have been considered as the main cathode materials for high energy density Li-ion batteries. However, cracks of poly-crystalline NCM materials caused by stress accelerate the loss of active materials, limiting the life cycle. Hence, monitoring and understanding the chemo-mechanical evolution of NCM materials is of importance.

Imagine simply telling your vehicle, "I'm in a hurry," and it automatically takes you on the most efficient route to where you need to be.

A flexible screen inspired in part by squid can store and display encrypted images like a computer—using magnetic fields rather than electronics. The research is reported in Advanced Materials by University of Michigan engineers.

Ever been asked a question you only knew part of the answer to? To give a more informed response, your best move would be to phone a friend with more knowledge on the subject.

Researchers from Tokyo Metropolitan University have made strides forward in realizing industrial conversion of bicarbonate solution made from captured carbon to a formate solution, a green fuel. The research is published in the journal EES Catalysis.

Many animal species, ranging from insects to amphibians and fish, use jumping as a means of moving within their surrounding environment. Jumping can be very advantageous for these animals, for instance, allowing them to reach higher branches of trees, swiftly escape from predators or move faster across long distances.

Deepfake videos generated by artificial intelligence grow increasingly difficult to identify as false, a challenge that could significantly skew the results of the upcoming presidential election.

Research published in the International Journal of Information and Communication Technology may soon help solve a long-standing challenge in semiconductor manufacture: the accurate detection of surface defects on silicon wafers. Crystalline silicon is the critical material used in the production of integrated circuits and in order to provide the computing power for everyday electronics and advanced automotive systems needs to be as pristine as possible prior to printing of the microscopic features of the circuit on the silicon surface.

SUNY Poly Assistant Professor Dr. Mahmoud Badr and peers recently published research titled "Reinforcement Learning for Fair and Efficient Charging Coordination for Smart Grid," in the journal Energies. The research investigates the use of reinforcement learning (RL) to improve the coordination of home battery system charging in a smart grid.