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A small proton charge radius from an electron-proton scattering experiment

first Pohl, R. et al. Proton size. Nature 466 213–216 (2010). 2nd Mohr, PJ, Taylor, BN & Newell, DB CODATA Recommended Values ​​for Basic Physical Constants: 2006. Rev. Courage. Phys . 80 633–730 (2008). 3rd Beyer, A. et al. Rydberg's constant and proton size from atomic hydrogen. Science 358 79–85 (2017). 4th Fleurbaey, H. New measurement of 1S – 3S …

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Researchers create rewritable optical components for 2-D light waves

A 2D prism. Credit: Harvard SEAS              In 1884, a schoolmaster and theologian named Edwin Abbott wrote a novella called Flatland, which tells the story of a world populated by sentient two-dimensional shapes. While intended as a satire of rigid Victorian social norms, Flatland has long fascinated mathematicians and physicists and served as the setting for many a thought experiment. …

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These images make molecular structures look like psychedelic art

Scope It Out Electron microscopes are good at producing high-resolution images of a material's atomic structure – if the material is hard, it is. Unfortunately, the electron beams of the devices can destroy softer material, so researchers usually rely on X-rays, which cannot reach atomic resolution, to form these. But researchers at the Department of Energy's Lawrence Berkeley National Laboratory …

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Raleigh City Council honors NASA astronaut Christina Koch

RALEIGH                  When the city of Raleigh wants to celebrate someone, the mayor declares a special day in their honor. Normally the person shows up in person for reading their proclamation at a City Council meeting. That is going to work for Christina Koch on Wednesday afternoon. The NASA flight engineer was more than 100 miles away, floating in space. …

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Chemists' surprising discovery of nanoconfined reactions can facilitate catalytic design

Credit: Georgia State University Georgia State University chemistry scientists have unlocked one of the mysteries of catalytic reactions on a microscopic scale, enabling the design of more efficient industrial processes. Catalysts – which accelerate chemical reactions in everything from digestion to internal combustion engines in vehicles – are important for turning raw materials into useful products in industries including petroleum, …

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What Voyager 2 Learned After Spending a Year in Interstellar Space

Only two of humanity's spacecraft have left the Solar System: NASA's Voyager 1 and Voyager 2. Voyager 1 left the heliosphere behind in 2012, while Voyager 2 did the same on Nov. 5th, 2018. Now Voyager 2 has been in interstellar space for one year, and five new papers are presenting the scientific results from that one year. The heliosphere …

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Voyager 2 latest: Voyager 2 reaches interstellar space and makes incredible discovery | Science | News

About 12 billion miles from Earth marks a boundary edge of the Sun's realm and the beginning of interstellar space. When NASA's space probe Voyager 2 crossed this boundary more than 40 years after its launch, a faint signal from deep space scientists has now been decoded. Researchers from the University of Iowa confirmed Voyager 2's passage into Interstellar Medium …

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Spiders and ants inspire non-sinking metal

A metal structure etched lasers, right, float to the top of the water surface in Professor Chunlei Guo's laboratory. Credit: University of Rochester photo / J. Adam Fenster University of Rochester researchers, inspired by diving bell spiders and fire ants, have created a metallic structure that is so water-resistant, refuses to sink – no matter how often it is forced …

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A bipartisan group of senators wants to expand the space station to 2030

Enlarge / Sen. Ted Cruz, R-Texas, chairman of the Aviation and Space Subcommittee, left, and NASA Administrator Jim Bridenstine talk after a May 2019 hearing NASA A bipartisan quartet of US senators has tabled a new bill that will define NASA's space policy for the next decade. The new approval legislation is largely consistent with much of NASA's current operations, …

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