But by rethinking the shape of carbon at the microscopic level, the team found a workaround. The cone and disc structures offer curvature and spacing that welcome sodium and potassium ions without ...

A student plays with a wooden shape sorter at a school for victims of Agent Orange in Da Nang, Vietnam, March 7, 2025. (AP Photo/Hau Dinh) Vietnam now has to negotiate a new reality where the U.S ...

drawing shapes or forming simple sentences. Hai grew up in Da Nang, the site of a U.S. air base where departing troops left behind huge amounts of Agent Orange that have lingered for decades ...

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Newborns love simple toys with high-contrast designs for visual tracking before progressing to stacking and sorting toys that enhance those crucial fine motor skills. From six months onwards ...