Showing 20 articles starting at article 761

< Previous 20 articles        Next 20 articles >

Categories: Ecology: Sea Life, Energy: Technology

Return to the site home page

     (via sciencedaily.com) 

Rather than being solely detrimental, cracks in the positive electrode of lithium-ion batteries reduce battery charge time, research shows. This runs counter to the view of many electric vehicle manufacturers, who try to minimize cracking because it decreases battery longevity.

     (via sciencedaily.com)     Original source 

With mighty jaws and plate-like teeth, the globally endangered whitespotted eagle ray can pretty much crunch on anything. Yet, little information is available on critical components of their life history in the U.S., such as their diet. A study is the first use DNA barcoding to uncover the finer-scale feeding patterns of this protected species in Florida. The surprising results have important implications for both shellfish enhancement activities and species management.

     (via sciencedaily.com) 

Engineers have created a 'supercapacitor' made of ancient, abundant materials, that can store large amounts of energy. Made of just cement, water, and carbon black (which resembles powdered charcoal), the device could form the basis for inexpensive systems that store intermittently renewable energy, such as solar or wind energy.

     (via sciencedaily.com)     Original source 

Scientists found that trout from lakes stocked decades ago in the Wind River Mountains have higher numbers of gill rakers, which are bony or cartilage structures in the gullets of fish that act as sieves to retain zooplankton and nourish the trout. The difference is likely a result of the trout adapting to the food sources of the once-fishless high-mountain lakes -- a change that has taken place in a relatively short period of time and at a rate that is generally consistent with the historic timing of stocking for each of the lakes.

     (via sciencedaily.com) 

Everyday life involves the three dimensions or 3D -- along an X, Y and Z axis, or up and down, left and right, and forward and back. But, in recent years scientists have explored a 'fourth dimension' (4D), or synthetic dimension, as an extension of our current physical reality.

     (via sciencedaily.com)     Original source 

The smallest member of the filter-feeding family is one of the only whale species not to embark on seasonal migrations, new research finds.

     (via sciencedaily.com)     Original source 

Resilient corals, often referred to as 'super corals', have recently been seen as potential saviours in the face of climate change and its detrimental effects on coral reefs. Now, a team of scientists is working to better understand these corals in order to develop strategies to protect fragile ecosystems such as the Great Barrier Reef.

     (via sciencedaily.com)     Original source 

Arctic terns -- which fly on the longest migrations of any animal on Earth -- may be able to navigate the dangers posed by climate change, new research suggests.

     (via sciencedaily.com)     Original source 

Researchers have uncovered the promising capability of chitin as a sustainable smart biomaterial. Through water exchange with the environment, humidity-responsive chitinous films can generate mechanical and electrical energy for potential use in engineering and biomedical applications.

     (via sciencedaily.com)     Original source 

Scientists have discovered a new species of marine cryptofauna in the Florida Keys. Cryptofauna are the tiny, hidden, organisms that make up the majority of biodiversity in the ocean. The tiny crustaceans are the first new gnathiid isopod to be discovered from the Floridian ecoregion in 100 years and are named after singer-songwriter Jimmy Buffett.

     (via sciencedaily.com)     Original source 

The study takes a new approach to answer a long-standing mystery about insulator-to-metal transitions.

     (via sciencedaily.com) 

Chemists have demonstrated that water remediation can be powered in part -- and perhaps even exclusively -- by renewable energy sources.

     (via sciencedaily.com)     Original source 

Plastic waste is a problem on our beaches. Hence, it is largely removed in a coordinated manner within a few weeks. However, it can litter other coasts of the world for many months to years due to unregulated waste disposal. Often the garbage on the beach is simply burned and a special form of plastic waste is created: so-called plastiglomerate. This 'rock' is made up of natural components, such as coral fragments, held together by the melted and reconsolidated plastic. A new study has now demonstrated, using field samples from Indonesia, that such rocks pose an increased environmental risk to coastal ecosystems such as seagrass beds, mangroves or coral reefs. The melted plastic decomposes more quickly into microplastics and is also contaminated with organic pollutants.

     (via sciencedaily.com)     Original source 

Approximately 99.9% of fish and shark species are 'cold-blooded', meaning their body tissues generally match the temperature of the water they swim in -- but researchers have just discovered the mighty basking shark is a one-in-a-thousand exception. Instead, these sharks keep the core regions of their bodies warmer than the water like the most athletic swimmers in the sea such as great white sharks, mako sharks and tuna.

     (via sciencedaily.com) 

Engineers have created a device that turns sunlight into hydrogen with record-breaking efficiency by integrating next-generation halide perovskite semiconductors with electrocatalysts in a single, durable, cost-effective and scalable device.

     (via sciencedaily.com) 

Researchers are using aluminum foil to create batteries with higher energy density and greater stability. The team's new battery system could enable electric vehicles to run longer on a single charge and would be cheaper to manufacture -- all while having a positive impact on the environment.

     (via sciencedaily.com)     Original source 

Researchers report that it is possible to imbue graphite -- the bulk, 3D material found in No. 2 pencils -- with physical properties similar to graphite's 2D counterpart, graphene. Not only was this breakthrough unexpected, the team also believes its approach could be used to test whether similar types of bulk materials can also take on 2D-like properties. If so, 2D sheets won't be the only source for scientists to fuel technological revolutions. Bulk, 3D materials could be just as useful.

     (via sciencedaily.com) 

Early experiments have revealed significant benefits to a dry battery manufacturing process. This eliminates the use of toxic solvents while showing promise for delivering a battery that is durable, less weighed down by inactive elements and able to maintain high energy storage capacity after use. Such improvements could boost wider EV adoption, helping to reduce carbon emissions and achieve U.S. climate goals.

     (via sciencedaily.com)     Original source 

In a new landmark chemistry study, researchers describe how they have achieved the highest level of energy storage -- also known as capacitance -- in a supercapacitor ever recorded.

     (via sciencedaily.com) 

A bifacial perovskite solar cell, which allows sunlight to reach both sides of the device, holds the potential to produce higher energy yields at lower overall costs.