搜索结果: 1-15 共查到“国际动态 理学 the light”相关记录125条 . 查询时间(0.078 秒)
SHINE shines a light on neutrino beams（图）
中微子光束 欧洲核子研究中心 NA61实验
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2023/6/12
At the time of the Big Bang, 13.8 billion years ago, every particle of matter is thought to have been produced together with an antimatter equivalent of opposite electrical charge. But in the present-...
Artificial light at night aids caterpillar predators（图）
夜间人造光 毛虫捕食者 昆虫保护
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2023/5/19
To save caterpillars, turn off your porch light.
Using light to manipulate neuron excitability（图）
光 操纵 神经元 兴奋性 光遗传学
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2023/6/7
Nearly 20 years ago, scientists developed ways to stimulate or silence neurons by shining light on them. This technique, known as optogenetics, allows researchers to discover the functions of specific...
Microscopy reveals how psychedelics light up brain’s neuropathways（图）
显微镜 迷幻药 大脑 神经通路
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2023/5/19
What a long, strange trip it’s been for psychedelic drugs. From their use in ancient indigenous ceremonies, to their often-caricatured association with the 1960s counterculture, to their recent reemer...
Why do woodpeckers peck? New discovery about bird brains sheds light on intriguing question（图）
鸟类大脑 交际鼓声 动物行为学
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2023/6/26
A team led by a Brown biologist discovered that the same specialized brain area that helps songbirds learn their songs also exists in woodpeckers, suggesting that the communicative drumming evolved in...
Study sheds new light on materials assembly in confinement（图）
密闭期间 材料组装 优化
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2023/5/19
Cramming multiple pairs of shoes into a vacation suitcase, twisting and flipping them into different arrangements to fit every pair needed, is a familiar optimization problem faced by harried traveler...
Thoreau’s flowers shine light on climate change（图）
气候变化 梭罗 植物物种
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2023/6/21
Through his close relationship with the woods of Walden Pond in Concord, Massachusetts, Henry David Thoreau observed the ebb and flow of the natural world first-hand. Prolific in his practice of colle...
A glimpse into the universe’s first light（图）
早期宇宙 大爆炸 再电离时代
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2023/6/25
It looks like fireflies flickering in the darkness. Slowly, more and more amass, lighting up the screen in large chunks and clusters.
Lessons in regeneration by light of glowing worms（图）
发光蠕虫 转基因 光再生
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2023/6/21
Cut off the head of a three-banded panther worm, and it will grow another — mouth, brain, and all. Cut off its tail, and the same thing happens. Cut it in three pieces, and within eight weeks there’ll...
Detected: 1,652 radio bursts from 3 billion light-years away（图）
1亿光年外 无线电爆发 快速射电爆发
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2023/5/23
What seemed a cosmic trickle almost a decade ago now appears as a rapid-fire barrage from across the universe.
Scientists shed new light on role of viruses in coral bleaching（图）
new light role viruses coral bleaching
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2020/10/23
Scientists at Oregon State University have shown that viral infection is sometimes involved in coral bleaching -- the breakdown of the symbiotic relationship between corals and the algae the...
New view of nature's oldest light adds fresh twist to debate over universe's age（图）
New view nature oldest light adds fresh twist debate over universe's age
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2020/7/31
From a mountain high in Chile's Atacama Desert, astronomers at the U.S. National Science Foundation's Atacama Cosmology Telescope (ACT) have taken a fresh look at the oldest light in th...
Desert algae shed light on desiccation tolerance in green plants（图）
Desert algae shed light desiccation tolerance green plants
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2020/7/10
Deserts of the U.S. Southwest are hot and dry -- extreme habitats for most plants -- but, remarkably, microscopic green algae that live there are extraordinarily tolerant of dehydration.These tiny gre...
Light-activated 'CRISPR' enables fast, precise gene editing and detection of DNA repair（图）
Light-activated CRISPR enables fast precise gene editing detection DNA repair
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2020/7/3
In a series of experiments co-funded by the National Science Foundation, scientists at Johns Hopkins have used light as a trigger to make quick, precise cuts in the genomic material of ...
How plants tune their greenness to light quality（图）
plants tune greenness light quality
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2020/3/13
Scientists are refining our understanding of how light wavelengths affect the way plants develop their chloroplasts.Chloroplasts are the "engines" of plants. They use light from the sun and carbon dio...