The sound of clapping, explained by physics

A round of applause, please: Scientists have finally figured out what’s behind the sound of clapping. The research pinpoints a mechanism called a Helmholtz resonator — the same acoustic concept that underlies the sound made when you blow across the top of an empty bottle. Experiments using baby powder to map the flow of air,…

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Arab leaders consider Egypt’s plans to clear rubble and bombs and rebuild Gaza Strip – Middle East crisis live | Gaza

Arab leaders consider Egypt’s plans to rebuild Gaza Strip by removing unexploded ordnance, clearing rubble and creating green housing More details are emerging of Egypt’s plan for rebuilding the Gaza Strip. The plan, published today, sets out proposals to rebuild the area by 2030 without removing its population. The $53bn plan is counters Donald Trump’s…

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NCAA tournament bracketology sees Tennessee rise

Can North Carolina Tar Heels do enough to make March Madness? USA TODAY Sports’ Jordan Mendoza breaks down some notable teams on the March Madness bubble including North Carolina, Arkansas and San Diego State. Sports Pulse As Selection Sunday inches closer, NCAA men’s basketball tournament watchers tend to focus on two areas of the bracket….

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