The engineering apologetics juggernaut known as Henry Petroski has turned out another timely reflection on technology and its social relations, with special reference to policy questions involving climate change, energy, and related challenges. But to what extent does the recognition of distinctions between science and engineering really promote effective engineering (or science) for policy?

[Web supplement] The bulbous bow is the most visible technological artifact of contemporary naval architecture, but its first incarnation was as the iconic weapon of Greek and Roman war galleys. Larrie Ferreiro’s research note touches on the social and cultural contexts in which the bulbous bow has evolved over three millennia.

Might physical and social power originate, function, and affect the world in similar ways—perhaps even have some causal connection?