Search results for black arsenic

Environment Sep 14, 2020

How bushfires and rain turned our waterways into 'cake mix,' and what we can do about it

As the world watched the Black Summer bushfires in horror, we warned that when it did finally rain, our aquatic ecosystems would be devastated.

Environment Jul 15, 2020

Q&A: Coming soon? A brief guide to 21st-century megadisasters

When it comes to calamities, Jeffrey Schlegelmilch thinks big. In his upcoming book, "Rethinking Readiness: A Brief Guide to Twenty-First-Century Megadisasters," he explores menaces that potentially could change not just ...

Quantum Physics Jul 14, 2020

Hammer-on technique for atomic vibrations in a crystal

Vibrations of atoms in a crystal of the semiconductor gallium arsenide (GaAs) are impulsively shifted to a higher frequency by an optically excited electric current. The related change in the spatial distribution of charge ...

Environment Jun 22, 2020

Southwestern correctional facilities' drinking water puts inmate health at risk

The first nationwide analysis of drinking water quality in United States correctional facilities found average arsenic concentrations in drinking water in Southwestern United States correctional facilities were twice as high ...

Condensed Matter Jun 1, 2020

'Black nitrogen': Researchers discover new high-pressure material and solve a puzzle of the periodic table

In the periodic table of elements there is one golden rule for carbon, oxygen and other light elements: Under high pressures, they have similar structures to heavier elements in the same group of elements. But nitrogen always ...

Optics & Photonics Apr 13, 2020

Graphene heterostructures with black phosphorus, arsenic layers enable new infrared detectors

MIPT scientists and their colleagues from Japan and the U.S. have calculated the parameters of photodetectors comprised of layers of graphene and a combination of black phosphorus and black arsenic. These sensors are able ...

Environment Feb 21, 2020

The toxic legacy of old oil wells: California's multibillion-dollar problem

Across much of California, fossil fuel companies are leaving thousands of oil and gas wells unplugged and idle, potentially threatening the health of people living nearby and handing taxpayers a multibillion-dollar bill for ...

Materials Science Jan 31, 2020

Rust offers a cheap way to filter arsenic-poisoned water

When water flows deep underground, it often dissolves inorganic substances from mineral deposits in the earth's crust. In many regions, these deposits contain arsenic, a naturally occurring element that is colorless, tasteless ...

Environment Nov 20, 2019

Lake Erie provides drinking water for more people than any other, but algae blooms are making it toxic

Every year, an explosion of microscopic life reigns over western Lake Erie, forming a green slick of algae and bacteria so massive and vibrant that it can be seen from space.

Earth Sciences Oct 2, 2019

An India-Pakistan nuclear war could kill millions, threaten global starvation

A nuclear war between India and Pakistan could, over the span of less than a week, kill 50-125 million people—more than the death toll during all six years of World War II, according to new research.

page 4 from 11