Have you even been in Building 10 and wondered what exactly Vannevar Bush did to get the Bush Room named after him? Have you ever looked at the names on the buildings around Killian Court and asked yourself, what’s so great about Chladni, Gramme, and Regnault that their names are carved alongside Darwin, Faraday, and Ben Franklin?

Wonder no more! They’re just a few of the more than 5000 scientists and mathematicians profiled in the Complete Dictionary of Scientific Biography. All 18 volumes of the classic work Dictionary of Scientific Biography are now available online, supplemented by the eight volumes of the recently published New Dictionary of Scientific Biography, which adds almost 800 new authoritative profile.