More than a Manual: Early-Modern Mathematical Instrument Books

In Elizabethan London, one of the more surprising things a wealthy owner of a beautifully illustrated folio volume could do was to take a sharp knife and cut it to pieces. John Blagrave’s 1585 Mathematical Jewel, in fact, demands nothing less.[1] This work, which introduced an elaborate instrument of Blagrave’s design for performing astronomical calculations, … Continue reading More than a Manual: Early-Modern Mathematical Instrument Books

Spinning the Risk: ‘The Effects of Nuclear Weapons’ Handbook

The Effects of Nuclear Weapons was by far the most popular handbook of nuclear defense during the Cold War. Adapted from an original publication of the Los Alamos Scientific Laboratory (1950),[1] the handbook was amended and made commercially available for popular use (1957),[2] revised (1962),[3] reprinted (1964),[4] expanded (1977),[5] and even illicitly translated into Russian … Continue reading Spinning the Risk: ‘The Effects of Nuclear Weapons’ Handbook

Handbooks of the Mind into Ready Reckoners in Print: The Story of the ‘Encuvati’ in the Nineteenth Century

The Encuvati was the quintessential Tamil multiplication table book, used in precolonial South Indian schools. Nowadays they are available as palm leaf manuscripts, collected from different geographical locations of the Tamil-speaking region of South India and stored in various manuscript libraries there as well as in other collections inside and outside the country. But why … Continue reading Handbooks of the Mind into Ready Reckoners in Print: The Story of the ‘Encuvati’ in the Nineteenth Century