Chemical reactions deep below ground affect water quality, but methods for 'seeing' them are time-consuming, expensive and limited in scope. A Penn State-led research team found that seismic waves can help to identify these reactions under an entire watershed and protect groundwater resources.
The lack of human activity during lockdown caused human-linked vibrations in the Earth to drop by an average of 50% between March and May 2020.
Global COVID-19 "lockdown" measures - the quarantines, physical isolation, travel restrictions and widespread closures of services and industry that countries around the world have implemented in 2020 - resulted in a months-long reduction in global seismic noise by up to 50%, representing the longest and most prominent global seismic noise reduction in recorded history.
The hurricanes in the Caribbean became more frequent and their force varied noticeably around the same time that classical Mayan culture in Central America suffered its final demise: We can gain these and other insights by looking at the climate archive created under the leadership of geoscientists from Goethe University and now presented in an article in "Nature" journal's 'Scientific Reports' on 16 July.
ETH researchers used computer simulations to classify the current activity of corona structures on the surface of Venus. To their surprise, they found a previously undiscovered ring of fire on our neighbouring planet.
The ancient philosopher Plato posited the shapes of the building blocks of the universe. According to him, the earth was formed of cubes. In new research, Douglas Jerolmack of the University of Pennsylvania and Gabor Domokos of the Budapest University of Technology and Economics and colleagues find a fundamental truth in that premise. Studying the shapes and fragmentation patterns of a variety of rocks, they found that the average of all their forms is a cube.
Skoltech researchers and their industry colleagues have created a data-driven model that can forecast the production from an oil well stimulated by multistage fracturing technology. This model has high commercialization potential, and its use can boost oil production via optimized fracturing design.
New research has revealed when it comes to flying the largest of birds don't rely on flapping to move around. Instead they make use of air currents to keep them airborne for hours at a time. A study has revealed the Andean condor - the world's heaviest soaring bird - actually flaps its wings for one per cent of its flight time.
Measurements by the GRACE-FO satellite mission show a decline in water storage in Central Europe by up to 94 percent compared with seasonal fluctuations. The changes are so serious that a recovery within one year is not to be expected. The water shortage in the years 2018 and 2019 is thus the largest in the entire GRACE and GRACE-FO measurement campaign of almost 20 years. The results were published in the journal Geophysical Research Letters.
Archaeological glass contains information about the movement of goods and ancient economies, yet the understanding of critical aspects of the ancient glass industry is fragmentary. Until now, it has been challenging to scientifically determine the origin of the colourless and clear glass, which was particularly favoured by the Romans. The Romans distinguished between two types of clear glass: Alexandrian and Levantine. Now researchers have found a way to localize the furnaces of the two types.