This week, a new 3D printer allows quick shifting between many materials, and understanding the link between gut microbes and liver disease.00:46 A new dimension for 3D printersA new nozzle lets a 3D printer switch between materials at a rapid rate, opening the door to a range of applications. Research Article: Skylar-Scott et al.; News and Views: How to print multi-material devices in one go08:07 Research HighlightsThe slippery secrets of ice, and cells wrapping up their nuclei. Research Highlight: Viscous water holds the secret to an ice skater’s smooth glide; Research Highlight: Super-thin layer of ‘bubble wrap’ cushions a cell’s nucleus10:17 Linking bacteria to liver diseaseResearchers have isolated a bacterial strain that appears to play an important role in alcoholic liver disease. Research paper: Duan et al.; News and Views: Microbial clues to a liver disease17:10 News Chat‘Megaconstellations’ of satellites concern astronomers, and a report on the gender gap in chemistry. News: SpaceX launch highlights threat to astronomy from ‘megaconstellations’; News: Huge study documents gender gap in chemistry publishing Hosted on Acast. See acast.com/privacy for more information.

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