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Scientists in Saudi Arabia have developed a new coating for streetlights to make them more efficient.
The nanomaterial coating, called nanoPE, allows for enhanced thermal management and reduces the LED temperature.
The coating enables 80% of the heat to pass through the surface while reflecting more than 95% of the visible light back to the ground.
This technology can lead to significant energy savings, estimated at 1.9 terawatt-hours and reduction of 1.3 million metric tons of CO2 emissions annually in the United States.

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Physicsworld

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Physicist Max Koch from the University of Göttingen in Germany conducted a study on the physics involved in opening swing-top bottles of beer.
Using a high-speed camera and simulations, Koch discovered that the sound produced during the opening of swing-top bottles is caused by condensation forming a standing wave, rather than a shockwave.
The opening of the bottle also triggers the rise of the liquid level due to dissolved carbon dioxide and causes the liquid to slosh due to the motion of the bottle.
Further study is still needed, as numerical simulations showed a peak in acoustic emission that was absent in experimentation.

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Physicsworld

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Scientists accused of sexual misconduct experience a significant drop in citation rates for their work, according to a study.
Researchers accused of scientific misconduct do not see a similar decline in citations.
The study analyzed citation rates for 5888 papers by 30 researchers accused of misconduct.
The study suggests that academics may overestimate their ability to separate scientists from their work.

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Hobbieroth

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Intermediate Physics for Medicine and Biology offers numerous homework problems emphasizing the ability to understand how quantities depend on variables.
A new homework problem explores the energy of interaction between an electric dipole and an induced dipole in a dielectric as a function of distance r.
The energy of a dipole in an electric field is determined by U = -p · E, and the induced dipole in a dielectric is proportional to the electric field it experiences.
The energy varies with the cosine of the angle between the dipole and the electric field, and the dipole is attracted to the dielectric.
Van der Waals interactions in biology rely on energy falling as 1/r^6, influencing how biomolecules interact.
Fluorescence resonance energy transfer (FRET) uses dipole-dipole interactions for measuring distances between molecules, being sensitive due to the 1/r^6 energy decay.
FRET serves as a spectroscopic ruler, with the technique explored in Philip Nelson's book.

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Minis

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OpenAI has introduced ChatGPT plugins, a way to extend the scope of its chatbot language model. Plugins allow people to enter text commands, via typing or speech recognition, and have ChatGPT formulate a response using data from third-party services.
If this can be done accurately and quickly, without excessive cost, OpenAI may have found the successor of traditional web search.

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