333 articles from WEDNESDAY 28.4.2021

With Goals Met, NASA to Push Envelope with Ingenuity Mars Helicopter

Portal origin URL: With Goals Met, NASA to Push Envelope with Ingenuity Mars HelicopterPortal origin nid: 470563Published: Wednesday, April 28, 2021 - 17:44Featured (stick to top of list): noPortal text teaser: Now that NASA’s Ingenuity Mars Helicopter has accomplished the goal of achieving powered, controlled flight of an aircraft on the Red Planet, and with data from...

Researchers investigate structural changes in snap-frozen proteins

Researchers at the University of Bonn and the Research Center caesar have succeeded in ultra-fast freezing proteins after a precisely defined period of time. They were able to follow structural changes on the microsecond time scale and with sub-nanometer precision. Owing to its high spatial and temporal resolution, the method allows tracking rapid structural changes in enzymes and nucleic acids....

Team makes single photon switch advance

The ability to turn on and off a physical process with just one photon is a fundamental building block for quantum photonic technologies. Realizing this in a chip-scale architecture is important for scalability, which amplifies a breakthrough by City College of New York researchers led by physicist Vinod Menon. They've demonstrated for the first time the use of "Rydberg states" in solid state...

Single photon switch advance

The ability to turn on and off a physical process with just one photon is a fundamental building block for quantum photonic technologies. Realizing this in a chip-scale architecture is important for scalability. Researchers have demonstrated the use of 'Rydberg states' in solid state materials (previously shown in cold atom gases) to enhance nonlinear optical interactions to unprecedented levels...

Tool to track marine litter polluting the ocean

In an effort to fight the millions of tons of marine litter floating in the ocean, researchers have developed a new virtual tool to track this debris. Their work will help provide answers to help monitor and deal with the problem of marine litter.

Structural changes in snap-frozen proteins

Researchers have succeeded in ultra-fast freezing proteins after a precisely defined period of time. They were able to follow structural changes on the microsecond time scale and with sub-nanometer precision. Owing to its high spatial and temporal resolution, the method allows tracking rapid structural changes in enzymes and nucleic acids.

'Not one iota lonely': Michael Collins on flying solo during Apollo 11 moon landing – video

Michael Collins, who was part of the Apollo 11 moon landing crew and kept the command module flying while Neil Armstrong and Buzz Aldrin became the first humans to walk on the moon, has died at the age of 90, his family said on Wednesday. He was sometimes known as the ‘forgotten astronaut’ because he did not get to land on the moon, while Armstrong and Aldrin became household names. But his...

Improving the way vets care for animals and people

Veterinarians, pet owners and breeders often have preconceived notions about each other, but by investigating these biases, experts at the University of Arizona College of Veterinary Medicine hope to improve both human communication and animal care.

Scientists see chemical short-range order in medium-entropy alloy

Chinese scientists have made direct observations of face-centered cubic VCoNi (medium)-entropy alloys (MEA) and for the first time proposed a convincing identification of subnanoscale chemical short-range order (CSRO). This achievement undisputedly resolves the pressing question of if, what and why CSRO exists, and how to explicitly identify CSRO.

El Nino can help predict cacao harvests up to two years in advance

When seasonal rains arrive late in Indonesia, farmers often take it as a sign that it is not worth investing in fertilizer for their crops. Sometimes they opt out of planting annual crops altogether. Generally, they're making the right decision, as a late start to the rainy season is usually associated with the state of El Niño Southern Oscillation (ENSO) and low rainfall in the coming months.

Remembering Michael Collins, Apollo 11’s Third—and Essential—Man

Few people think about the time Michael Collins didn’t go to the moon. Collins, who died of cancer on April 28 at age 90, is best remembered as Apollo 11’s command module pilot—in some ways the unluckiest man on the luckiest mission of all time. It was Apollo 11 that, in the summer of 1969, stuck the first crewed lunar landing, taking Neil Armstrong and Buzz Aldrin down to the...

New frontier for 3D printing develops state-of-the-art soft materials able to self-heal

The scientific community is focusing its research into the multiple applications of hydrogels, polymeric materials which contain a large amount of water, that have the potential to reproduce the features of biological tissues. This aspect is particularly significant in the field of regenerative medicine, which for a long time has already recognized and been using the characteristics of these...

Uncertainty of future Southern Ocean carbon dioxide uptake cut in half

The Southern Ocean dominates the oceanic uptake of human-made CO2. But how much carbon dioxide can it actually absorb in the future? This long-standing question remained unresolved as projections of different generation of climate models repeatedly showed a wide range of future Southern Ocean CO2 sink estimates. Climate scientists from Bern have now been able to reduce this large uncertainty by...

Soil bacteria evolve with climate change

While evolution is normally thought of as occurring over millions of years, researchers at the University of California, Irvine have discovered that bacteria can evolve in response to climate change in 18 months. In a study published in the Proceedings of the National Academy of Sciences, biologists from UCI found that evolution is one way that soil microbes might deal with global warming.