Biology: Botany Ecology: Endangered Species Ecology: Invasive Species Ecology: Nature Ecology: Trees Environmental: Ecosystems Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Severe Weather
Published

How a drought affects trees depends on what's been holding them back      (via sciencedaily.com)     Original source 

Droughts can be good for trees. Certain trees, that is. Contrary to expectation, sometimes a record-breaking drought can increase tree growth. Why and where this happens is the subject of a new article.

Chemistry: General Environmental: General Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Geology Geoscience: Severe Weather Geoscience: Volcanoes Space: Exploration Space: General
Published

Eruption of Tonga underwater volcano found to disrupt satellite signals halfway around the world      (via sciencedaily.com)     Original source 

Researchers found that the Hunga-Tonga eruption was associated with the formation of an equatorial plasma bubble in the ionosphere, a phenomenon associated with disruption of satellite-based communications. Their findings also suggest that a long-held atmospheric model should be revised.

Chemistry: General Chemistry: Inorganic Chemistry Engineering: Nanotechnology Engineering: Robotics Research Offbeat: General Physics: Optics
Published

Physical chemists develop photochromic active colloids shedding light on the development of new smart active materials      (via sciencedaily.com)     Original source 

In nature, the skin of cephalopods (animals with tentacles attached to the head) exhibits unparalleled camouflage ability. Their skin contains pigment groups that can sense changes in environmental light conditions and adjust their appearance through the action of pigment cells. Although intricate in nature, this colour-changing ability is fundamentally based on a mechanical mechanism in which pigment particles are folded or unfolded under the control of radial muscles. Inspired by this natural process, a research team forms dynamic photochromic nanoclusters by mixing cyan, magenta and yellow microbeads, achieving photochromism on a macro scale.

Environmental: General Geoscience: Environmental Issues Geoscience: Geography Geoscience: Severe Weather
Published

In years after El Niño, global economy loses trillions      (via sciencedaily.com)     Original source 

Researchers report that the financial toll of the climate pattern known as El Niño can persist for several years and cost trillions in lost income worldwide. The study, which is among the first to evaluate the long-term costs of El Niño, found that the 1982 and 1997 events led to $4.1 trillion and $5.7 trillion in lost income in the five years following them. With El Niño projected to return this year, the researchers project that global economic losses for the 21st century will amount to $84 trillion as climate change potentially amplifies the events' frequency and strength.

Environmental: General Geoscience: Environmental Issues Geoscience: Geography Geoscience: Severe Weather
Published

Extremely hot days are warming twice as fast as average summer days in North-West Europe      (via sciencedaily.com)     Original source 

New study analyzed data on near-surface air temperatures recorded for North-West Europe over the past 60 years. The findings show that the maximum temperature of the hottest days is increasing at twice the rate of the maximum temperature of average summer days. The results highlight the need for urgent action by policy makers to adapt essential infrastructure to the impacts of climate change.

Biology: Biochemistry Biology: Cell Biology Biology: Microbiology Chemistry: Biochemistry Chemistry: General Engineering: Nanotechnology
Published

An edible CBD coating could extend the shelf life of strawberries      (via sciencedaily.com)     Original source 

Soon, you'll be able to get a box of freshly picked, sweet strawberries from the grocery store or local farm stand. But it's disappointing when you get them home and find that the ones at the bottom have started to rot. To increase the berries' shelf life, researchers have incorporated cannabidiol -- a non-hallucinogenic compound from cannabis known as CBD -- and sodium alginate into an edible antimicrobial coating.

Chemistry: Biochemistry Chemistry: General Chemistry: Inorganic Chemistry Energy: Batteries Energy: Technology Engineering: Graphene Engineering: Nanotechnology
Published

New priming method improves battery life, efficiency      (via sciencedaily.com)     Original source 

Engineers have developed a readily scalable method to optimize a silicon anode priming method that increases lithium-ion battery performance by 22% to 44%.

Chemistry: Inorganic Chemistry Engineering: Nanotechnology Environmental: General Environmental: Water Geoscience: Environmental Issues
Published

Metal-filtering sponge removes lead from water      (via sciencedaily.com)     Original source 

Engineers have developed a new sponge that can remove metals -- including toxic heavy metals like lead and critical metals like cobalt -- from contaminated water, leaving safe, drinkable water behind. In proof-of-concept experiments, the researchers tested their new sponge on a highly contaminated sample of tap water, containing more than 1 part per million of lead. With one use, the sponge filtered lead to below detectable levels.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: General Biology: Microbiology Chemistry: Biochemistry Engineering: Nanotechnology Physics: Optics
Published

'Super-resolution' imaging technology      (via sciencedaily.com)     Original source 

Researchers describe developing a super-resolution imaging platform technology to improve understanding of how nanoparticles interact within cells.

Environmental: General Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Geography Geoscience: Severe Weather
Published

Atmospheric research provides clear evidence of human-caused climate change signal associated with CO2 increases      (via sciencedaily.com)     Original source 

New research provides clear evidence of a human 'fingerprint' on climate change and shows that specific signals from human activities have altered the temperature structure of Earth's atmosphere.

Engineering: Nanotechnology Physics: General Physics: Optics Physics: Quantum Computing Physics: Quantum Physics
Published

Leaky-wave metasurfaces: A perfect interface between free-space and integrated optical systems      (via sciencedaily.com)     Original source 

Researchers have developed a new class of integrated photonic devices -- 'leaky-wave metasurfaces' -- that convert light initially confined in an optical waveguide to an arbitrary optical pattern in free space. These are the first to demonstrate simultaneous control of all four optical degrees of freedom. Because they're so thin, transparent, and compatible with photonic integrated circuits, they can be used to improve optical displays, LIDAR, optical communications, and quantum optics.

Chemistry: Biochemistry Chemistry: General Computer Science: General Energy: Technology Engineering: Nanotechnology
Published

Engineers tap into good vibrations to power the Internet of Things      (via sciencedaily.com)     Original source 

In a world hungry for clean energy, engineers have created a new material that converts the simple mechanical vibrations all around us into electricity to power sensors in everything from pacemakers to spacecraft.

Computer Science: Artificial Intelligence (AI) Computer Science: General Engineering: Nanotechnology Offbeat: Computers and Math Offbeat: General
Published

A touch-responsive fabric armband -- for flexible keyboards, wearable sketchpads      (via sciencedaily.com)     Original source 

It's time to roll up your sleeves for the next advance in wearable technology -- a fabric armband that's actually a touch pad. Researchers say they have devised a way to make playing video games, sketching cartoons and signing documents easier. Their proof-of-concept silk armband turns a person's forearm into a keyboard or sketchpad. The three-layer, touch-responsive material interprets what a user draws or types and converts it into images on a computer.

Chemistry: Biochemistry Chemistry: General Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry Energy: Technology Engineering: Nanotechnology Offbeat: Computers and Math Offbeat: General
Published

Self-folding origami machines powered by chemical reaction      (via sciencedaily.com)     Original source 

Scientists have harnessed chemical reactions to make microscale origami machines self-fold -- freeing them from the liquids in which they usually function, so they can operate in dry environments and at room temperature.

Biology: Biochemistry Chemistry: Biochemistry Engineering: Nanotechnology
Published

Toys demonstrate how biological machines move      (via sciencedaily.com)     Original source 

By connecting small self-propelling toys in a chain, researchers have found the key to studying the movement of microscopic organisms and molecular motors inside our cells.

Energy: Technology Environmental: General Geoscience: Environmental Issues Geoscience: Severe Weather
Published

Prolonged power outages, often caused by weather events, hit some parts of the U.S. harder than others      (via sciencedaily.com)     Original source 

New research found that Americans already bearing the brunt of climate change and health inequities are most at risk of impact by a lengthy power outage.

Environmental: Ecosystems Environmental: Water Geoscience: Severe Weather
Published

The science behind the life and times of the Earth's salt flats      (via sciencedaily.com)     Original source 

Researchers have characterized two different types of surface water in the hyperarid salars -- or salt flats -- that contain much of the world's lithium deposits. This new characterization represents a leap forward in understanding how water moves through such basins, and will be key to minimizing the environmental impact on such sensitive, critical habitats.

Chemistry: General Chemistry: Inorganic Chemistry Computer Science: General Engineering: Nanotechnology
Published

Engineers 'grow' atomically thin transistors on top of computer chips      (via sciencedaily.com)     Original source 

A new method enables 2D-material semiconductor transistors to be directly integrated onto a fully fabricated 8-inch silicon wafer, which could enable a new generation of transistor technology, denser device integration, new circuit architectures, and more powerful chips.

Chemistry: Biochemistry Chemistry: General Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry Engineering: Nanotechnology
Published

How spheres become worms      (via sciencedaily.com)     Original source 

A previously unknown form of hydrogel formation has been elucidated: chemists found unusual interactions between polymers.

Engineering: Nanotechnology Offbeat: General Physics: General Physics: Optics
Published

Nifty nanoparticles help 'peel back the curtain' into the world of super small things      (via sciencedaily.com)     Original source 

Physicists are using nanoparticles to develop new sources of light that will allow us to 'peel back the curtain' into the world of extremely small objects -- thousands of times smaller than a human hair -- with major gains for medical and other technologies.