科学与环境
Shooting light pulses down a 3-kilometer borehole could illuminate seismic hazards
来源: Phys.org - latest science and technology news stories · 发布于
A better understanding of how earthquakes occur and what happens during a rupture is important for assessing seismic risk. Small earthquakes, which are more frequent than large ones, are a tempting data set, but they're hard to study, in large part because their energy is quickly
A better understanding of how earthquakes occur and what happens during a rupture is important for assessing seismic risk. Small earthquakes, which are more frequent than large ones, are a tempting data set, but they're hard to study, in large part because their energy is quickly sapped as it travels through Earth.
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A 2-in-1 approach captures toxic metals and recovers rare earth elements from wastewater
We generally throw away a broken camera lens, earphones or an old phone that has stopped working and is beyond repair because they seem useless when they no longer function. However, these objects contain rare earth elements (REEs) that have applications in magnets, superconducti
Phys.org - latest science and technology news stories ·
Where are the best places for life in the cosmos? A universe in a supercomputer yields an answer
Earth seems like a troubled place right now, but at least our cosmic surroundings appear peaceful. This is not universally true, as explosions, collisions and other dangers lurk in other places and times.
Phys.org - latest science and technology news stories ·
A meteor hit Oklahoma 100 million years later than scientists thought
A meteor crater buried beneath Oklahoma has turned out to be nearly 100 million years younger than scientists thought. Zircon crystals show the Ames impact occurred about 370 million years ago, meaning it was not part of the mysterious Ordovician bombardment once linked to a poss
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ESA’s Juice just used Earth as a slingshot to Jupiter
ESA’s Juice spacecraft raced past Earth on September 28, using our planet’s gravity to dramatically reshape its path toward Jupiter without burning much fuel. The flyby changed its direction by 20 degrees and increased its speed by 3.5 km/s, while also giving scientists a rare ch
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Pompeii’s 2,000-year-old eruption just gave scientists a better clock for Earth’s past
Mount Vesuvius’ famous 79 CE eruption has given scientists a remarkably precise benchmark for dating events deep in Earth’s past. The improved technique could sharpen the timelines of volcanic eruptions, asteroid impacts, extinctions, and other major moments in geological history
All Top News -- ScienceDaily ·