Neglected Plantation Waterways Worsen Hawaii Floods

Residents of North Shore Oʻahu say neglected plantation-era irrigation ditches and culverts intensified recent floods, with confusion over responsibility for repairs among landowners and government agencies.

Japanese Scientists Shatter Solar Efficiency Limits

Researchers at Kyushu University have developed a new material enabling solar cells to achieve 130% energy conversion efficiency, overcoming long-standing photovoltaic limits through a novel 'spin-flip' technique.

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