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5 w

Male green hermit hummingbirds: Bills evolved for battle

Male green hermit hummingbirds: Bills evolved for battle

Let's get one thing out of the way: All hummingbirds fight. Most species fight for food, using their tiny bodies and sharp bills to force competitors away from flowers. But the green hermit hummingbird, which lives primarily in mountain forests of Central and South America, fights to win a mate.

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5 w

Mercury pollution in marine mammals is increasing, new study finds

Mercury pollution in marine mammals is increasing, new study finds

In 2017, a new global treaty was meant to bring mercury pollution under control. But three decades of data from UK harbor porpoises show mercury is still increasing, and is linked to a higher risk of dying from infectious disease.

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5 w

Understanding intrinsically disordered protein regions and their roles in cancer

Understanding intrinsically disordered protein regions and their roles in cancer

Every function in a cell is associated with a particular protein or group of proteins, typically in a well-defined three-dimensional structure. However, intrinsically disordered regions of proteins defy this structure-function paradigm.

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5 w

Atoms passing through walls: Quantum tunneling of hydrogen within palladium crystal

Atoms passing through walls: Quantum tunneling of hydrogen within palladium crystal

At low temperatures, hydrogen atoms move less like particles and more like waves. This characteristic enables quantum tunneling, the passage of an atom through a barrier with a higher potential energy than the energy of the atom. Understanding how hydrogen atoms move through potential barriers has important industrial applications. However, the small size of hydrogen atoms makes direct observation of their motion extremely challenging.

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5 w

Potentially distinct structure in Kuiper belt discovered with help of clustering algorithm

Potentially distinct structure in Kuiper belt discovered with help of clustering algorithm

A vast region of our solar system, called the Kuiper belt, stretches from the orbit of Neptune out to 50 or so astronomical units (AU), where an AU is the distance between Earth and the sun. This region consists mostly of icy objects and small rocky bodies, like Pluto. Scientists believe Kuiper belt objects (KPOs) are remnants left over from the formation of the solar system.

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5 w

Laser-induced break-up of C₆₀ fullerenes caught in real-time on X-ray camera

Laser-induced break-up of C₆₀ fullerenes caught in real-time on X-ray camera

The understanding of complex many-body dynamics in laser-driven polyatomic molecules is crucial for any attempt to steer chemical reactions by means of intense light fields. Ultrashort and intense X-ray pulses from accelerator-based free electron lasers (FELs) now open the door to directly watch the strong reshaping of molecules by laser fields.

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5 w

New membrane sets record for separating hydrogen from CO₂

New membrane sets record for separating hydrogen from CO₂

When designing membranes that separate industrial gases, scientists often incorporate structures that attract the gas they want to obtain. This attraction can enhance the membrane's permeability, and help isolate the desired gas more efficiently.

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5 w

Info to decipher secret message in Kryptos sculpture at CIA headquarters sells for close to $1M

Info to decipher secret message in Kryptos sculpture at CIA headquarters sells for close to $1M

The information needed to decipher the last remaining unsolved secret message embedded within a sculpture at CIA headquarters in Virginia sold at auction for nearly $1 million, the auction house announced Friday.

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5 w

When gifts sting: Self-improvement presents may spark backlash and bad reviews

When gifts sting: Self-improvement presents may spark backlash and bad reviews

New research from FIU Business shows that well-intended presents like weight-loss teas or gym memberships can unintentionally send the wrong message—and ultimately trigger negative online reviews that hurt brands.

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5 w

Lab-grown diamond coatings shown to prevent mineral scale in industrial pipes

Lab-grown diamond coatings shown to prevent mineral scale in industrial pipes

In industrial pipes, mineral deposits build up the way limescale collects inside a kettle ⎯ only on a far larger and more expensive scale. Mineral scaling is a major issue in water and energy systems, where it slows flow, strains equipment and drives up costs.

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