2023-11-21 13:17:20物质与能量
恐龙灭绝后幸存的植物从空气中提取氮气

Once a favored food of grazing dinosaurs, an ancient lineage of plants called cycads helped sustain these and other prehistoric animals during the Mesozoic Era, starting 252 million years ago, by being plentiful in the forest understory. Today, just a few

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2023-11-21 13:17:20物质与能量
澳大利亚轨迹显示,白垩纪早期,鸟类在南极附近活动

The discovery of 27 avian footprints on the southern Australia coast -- dating back to the Early Cretaceous when Australia was still connected to Antarctica -- opens another window onto early avian evolution and possible migratory behavior.

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2023-11-21 13:17:19物质与能量
仅从音频片段和个人照片中创建的逼真的会说话的面孔

A team of researchers from Nanyang Technological University, Singapore (NTU Singapore) has developed a computer program that creates realistic videos that reflect the facial expressions and head movements of the person speaking, only requiring an audio cl

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2023-11-21 13:17:18物质与能量
没有科学证据表明纳勒迪人的认知高级行为和象征意义

A new study has cast doubt on claims that Homo naledi, a small-brained hominin dating to between 335-241,000 years ago, deliberately buried their dead and produced rock art in Rising Star Cave, South Africa.

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2023-11-21 13:17:17物质与能量
“青少年星系”异常炎热,闪耀着意想不到的元素

Similar to human teenagers, teenage galaxies are awkward, experience growth spurts and enjoy heavy metal -- nickel, that is.

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2023-11-21 13:17:17物质与能量
新化合物通过间接靶向钙通道而优于止痛药

A compound -- one of 27 million screened in a library of potential new drugs -- reversed four types of chronic pain in animal studies, according to new research led by NYU College of Dentistry's Pain Research Center and published in the Proceedings o

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2023-11-21 13:17:16物质与能量
研究人员发现用于微芯片传感器的新型超强材料

Researchers at Delft University of Technology, led by assistant professor Richard Norte, have unveiled a remarkable new material with potential to impact the world of material science: amorphous silicon carbide (a-SiC). Beyond its exceptional strength, th

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2023-11-21 13:17:16物质与能量
用于下一代量子处理的室温光纤单光子光源

Quantum-based systems promise faster computing and stronger encryption for computation and communication systems. These systems can be built on fiber networks involving interconnected nodes which consist of qubits and single-photon generators that create

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2023-11-21 13:17:14物质与能量
“2D”量子超流体摸起来是什么感觉

Researchers from Lancaster University in the UK have discovered how superfluid helium 3He would feel if you could put your hand into it.

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2023-11-21 13:17:14物质与能量
用于监测有机淡水污染的自供电微生物燃料电池生物传感器

The discharge of organic effluents -- biodegradable waste materials from plants and animals -- into freshwater bodies is a significant environmental concern, affecting the health and sustainability of these aquatic ecosystems. However, the methods current

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2023-11-21 13:17:13物质与能量
“芯片实验室”基因检测设备可以在三分钟内以最高精度识别病毒

Compact genetic testing device created for Covid-19 could be used to detect a range of pathogens, or conditions including cancer.

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2023-11-21 13:17:13物质与能量
地下停车场加热地下水

The heat given off by car engines warms up underground car parks in such a way that the heat passes through the ground into the groundwater. In Berlin alone, enough energy is transferred to the groundwater to supply 14,660 households with heat. This findi

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