Spreading crushed stone across farm fields could inexpensively pull CO2 from the air while also increasing yields. But it would require a mountain of mining Spreading crushed stone across farm fields could inexpensively pull CO2 from the air while also increasing yields. But it would require a mountain of mining Scientific American Content: Global
Hindu nationalists are committed to turning India into a Hindu nation-state. They are rewriting history in textbooks to shape that future, trampling India’s true past Hindu nationalists are committed to turning India into a Hindu nation-state. They are rewriting history in textbooks to shape that future, trampling India’s true past Scientific American Content: Global
A study using data from ESA’s Swarm mission suggests that faint magnetic signatures created by Earth’s tides can help us determine magma distribution under the seabed and could even give us insights into long-term trends in global ocean temperatures and salinity. A study using data from ESA’s Swarm mission suggests that faint magnetic signatures created by…
When glaciers and ice sheets melt, they can destabilize slopes and reactivate faults, which in turn can trigger landslides and reshape the surface of Earth over long periods of time. Researchers can monitor some locations in real time to determine which combinations of factors lead to landslides, but understanding what triggered landslides thousands of years…
A years-long survey of a Cambodian national park has revealed endangered species never before recorded in the country, highlighting the need for greater conservation efforts, environmentalists said Wednesday. A years-long survey of a Cambodian national park has revealed endangered species never before recorded in the country, highlighting the need for greater conservation efforts, environmentalists said Wednesday. Plants…
Deeply hidden in Earth’s mantle there are two huge “islands” the size of a continent. New research from Utrecht University shows that these regions are not only hotter than the surrounding graveyard of cold sunken tectonic plates, but also that they must be ancient: at least half a billion years old, perhaps even older. Deeply hidden…
In the world of modern optics, frequency combs are invaluable tools. These devices act as rulers for measuring light, enabling breakthroughs in telecommunications, environmental monitoring, and even astrophysics. But building compact and efficient frequency combs has been a challenge—until now. In the world of modern optics, frequency combs are invaluable tools. These devices act as rulers…
A double layer of tungsten diselenide behaves as a superconductor at very low temperatures, which could suggest a new route to developing materials that do so at room temperature A double layer of tungsten diselenide behaves as a superconductor at very low temperatures, which could suggest a new route to developing materials that do so at…
In nature, phenomena in which multiple fluctuations occur in a coupled manner are frequently observed. For example, in large earthquakes, cases of them occurring consecutively in adjacent regions have been reported. When multiple fluctuations occur in this coupled way, compared to a single fluctuation, the coupled ones release more energy, leading to larger-scale phenomena. In nature,…
Scientists have detected cosmic waves that sound like chirping birds in an unexpected place. These bursts of plasma, called chorus waves, ripple at the same frequency as human hearing. When converted to audio signals, their sharp notes mimic bird calls. Now researchers have sensed the chirping waves farther away: over 62,000 miles from Earth. The…