The oldest known engravings consist of zigzag patterns and parallel lines, carved into freshwater mussel shells at Trinil on ...

Every cell in the body contains essentially the same DNA, yet a brain cell behaves differently from a muscle cell or an ...

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Sam Newman discusses the concept of progressive collapse in civil engineering and how it applies to distributed systems.

National security, unlocked. Each Thursday, host Mary Louise Kelly and a team of NPR correspondents discuss the biggest national security news of the week. With decades of reporting from battlefields ...

Blocc chemistry, a modular approach to build small molecules from prefabricated building blocks (“bloccs”), has emerged from a new way to iteratively build carbon-carbon (C–C) bonds. This could enable ...