294 articles from MONDAY 2.11.2020

'Transparent solar cells' can take us towards a new era of personalized energy

Solar power has shown immense potential as a futuristic, 'clean' source of energy. No wonder environmentalists worldwide have been looking for ways to advance the current solar cell technology. Now, scientists have put forth an innovative design for the development of a high-power transparent solar cell. This innovation brings us closer to realizing our goal of a sustainable green future with...

Two centuries of Monarch butterflies show evolution of wing length

North America's beloved Monarch butterflies are known for their annual, multi-generation migrations in which individual insects can fly for thousands of miles. But Monarchs have also settled in some locations where their favorite food plants grow year round, so they no longer need to migrate. A new study of specimens collected over the last two centuries shows how wing length evolves in response...

NASA Contacts Voyager 2 Using Upgraded Deep Space Network Dish

Portal origin URL: NASA Contacts Voyager 2 Using Upgraded Deep Space Network DishPortal origin nid: 465971Published: Monday, November 2, 2020 - 16:55Featured (stick to top of list): noPortal text teaser: The only radio antenna that can command the 43-year-old spacecraft has been offline since March as it gets new hardware, but work is on track to wrap up in February.Portal...

Secrets behind 'Game of Thrones' unveiled by data science and network theory

What are the secrets behind one of the most successful fantasy series of all time? How has a story as complex as 'Game of Thrones' enthralled the world and how does it compare to other narratives? Researchers from five universities across the UK and Ireland came together to unravel 'A Song of Ice and Fire', the books on which the TV series is based.

Self-watering soil could transform farming

A new type of soil created by engineers can pull water from the air and distribute it to plants, potentially expanding the map of farmable land around the globe to previously inhospitable places and reducing water use in agriculture at a time of growing droughts.

Lizard skull fossil is new and 'perplexing' extinct species

A new species of extinct lizard, Kopidosaurus perplexus, has just been described. The first part of the name references the lizard's distinct teeth; a 'kopis' is a curved blade used in ancient Greece. But the second part is a nod to the 'perplexing' matter of just where the extinct lizard should be placed on the tree of life.

Just like us - Neanderthal children grew and were weaned similar to us

Neanderthals behaved not so differently from us in raising their children, whose pace of growth was similar to Homo sapiens. Thanks to the combination of geochemical and histological analyses of three Neanderthal milk teeth, researchers were able to determine their pace of growth and the weaning onset time. These teeth belonged to three different Neanderthal children who have lived between 70,000...

Bats can predict the future, researchers discover

They can't tell fortunes and they're useless with the stock market but bats are quite skilled at predicting one thing: where to find dinner. Bats calculate where their prey is headed by building on-the-fly predictive models of target motion from echoes, researchers find. The models are so robust, bats can continue to track prey even when it temporarily vanishes behind echo-blocking obstacles like...

Researchers advance efforts to accurately measure glyphosate pesticide in oats

Pesticides help farmers increase food production, reduce costly damage to crops, and even prevent the spread of insect-borne diseases, but since the chemicals can also end up in human food, it's essential to ensure that they are safe. For a commonly used pesticide known as glyphosate, concerns exist over how high a level is safe in food as well as the safety of one of its byproducts, known as...

How bacteria survive low oxygen environments

Researchers from ITQB NOVA, in collaboration with the Institut Pasteur in Paris, have shed light on the mechanisms that allow Clostridioides difficile, a pathogen that can only grow in oxygen-free environments, to be able to survive low oxygen levels. C. difficile is a major cause of intestinal problems associated with the use of antibiotics, causing an estimated number of 124k cases per year in...

Tunable THz radiation from 3-D topological insulator

Terahertz (THz) waves, located between the millimeter and far-infrared frequency ranges, are an electromagnetic frequency band that is as-yet incompletely recognized and understood. Xiaojun Wu of Beihang University leads a group of researchers actively seeking ways to understand, generate, and control THz radiation. Wu notes that THz waves have great potential for expanding real...