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Ultrasound Enables Remote 3D Printing–Even in the Human Body
For the first time, researchers have used sound waves to 3D print an object from a distance—even with a wall in the way.
Gene expression and alternative splicing contribute to adaptive divergence of ecotypes
Innes, P.A., Goebl, A.M., Smith, C.C.R. et al. Gene expression and alternative splicing contribute to adaptive divergence of ecotypes. Heredity (2023). https://doi.org/10.1038/s41437-023-00665-y.
Stephen Wolfram joins Brian Greene to explore whether the ultimate theory of the universe might emerge from a computationally simple framework
This program is part of the Big Ideas series, supported by the John Templeton Foundation.
Participant:
Stephen Wolfram.
Moderator:
Brian Greene.
WSF Landing Page Link: https://www.worldsciencefestival.com/programs/coding-the-cos…putations/
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Inconsistency Turns Up Again for Cosmological Observations
A new analysis of the distribution of matter in the Universe continues to find a discrepancy in the clumpiness of dark matter in the late and early Universe, suggesting a fundamental error in the standard cosmological model.
Cosmologists study the Universe by making a vast range of observations using a variety of modern techniques. Each observation can reveal different details about the Universe’s composition over a certain period of its history. An astronomical survey—a map of a region of the sky—is a powerful way to scan a large swath of the Universe and the objects it contains. For example, a weak-lensing survey does that by obtaining sharp images of galaxies, which can then be used to map the distribution of the Universe’s matter throughout history. The Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP) is one such weak-lensing survey, and it has the highest resolution and the deepest depth of all current weak-lensing surveys. Over the past six years, the HSC-SSP survey team has spent 330 nights scanning 3% of the entire spherical sky, capturing the light emitted by galaxies up to 10 billion years ago.