New gel regrows tooth enamel and could transform dentistry

Scientists have developed a new material that forms a gel capable of repairing and regenerating tooth enamel, paving the way for more effective and longer-lasting dental care. Researchers from the University of Nottingham’s School of Pharmacy and Department of Chemical and Environmental Engineering created a bioinspired compound designed to restore enamel that has been eroded…

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Is the expansion of the universe slowing down?

The Tycho supernova remnant NASA/CXC/RIKEN & GSFC/T. Sato et al; DSS It’s widely been thought that our universe is expanding at an ever-accelerating rate. But could we have that wrong? That is what a group of scientists from South Korea has claimed in a new paper, but other scientists have cited major concerns with the…

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Lumpy ‘caterpillar wormholes’ may connect entangled black holes

Sometimes wormholes are lumpy Shutterstock / Champhei What happens when two black holes become connected through an inextricable quantum link? Calculations suggest that this can give rise to a bumpy space-time tunnel called the “Einstein-Rosen caterpillar.” Albert Einstein’s name connects two very different physical oddities: the first is called an Einstein-Rosen bridge – a wormhole,…

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A breakthrough map reveals how the brain really works

New research offers the strongest evidence yet that the intricate web of connections linking different regions of the human brain can reveal what each area does. Earlier studies had identified links between brain connectivity and certain mental functions, such as perception or social behavior. However, this new work expands that understanding to the entire brain….

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