科學 訊息

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.

A new study by University of Massachusetts Amherst researchers demonstrates the effectiveness of homemade play putty at reading brain, heart, muscle and eye activity. Published in Device, the research outlines the conductive properties of this material, so-named "squishy circuits."

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.

A key step toward reusing CO2 to make sustainable fuels is chaining carbon atoms together, and an artificial photosynthesis system developed at the University of Michigan can bind two of them into hydrocarbons with field-leading performance.

If all the high-voltage transmission currently under construction and in advanced stages of permitting is built by 2030 in the Western United States—enabling the construction of new renewable energy projects—carbon dioxide emissions in the Western United States would drop by 73% compared to 2005.

Inspired by the architecture of human bone's tough outer layer, engineers at Princeton have developed a cement-based material that is 5.6 times more damage-resistant than standard counterparts. The bio-inspired design allows the material to resist cracking and avoid sudden failure, unlike conventional, brittle cement-based counterparts.

一個研究小組突破了太陽能電池技術的界限。7月3日，中國科技大學徐教授團隊公佈了鈣鈦礦太陽能電池性能新世界紀錄，經認證穩定效率為26.7%。該工作發表在《光伏進展：研究與應用》雜誌。

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.