Picture credits.

Every picture on this site is a public-domain engraving, print or drawing, reproduced from Wikimedia Commons and printed here in our own inks.

FlammarionWoodcut

Anonymous Unknown author, 1888. public domain. Source on Wikimedia Commons

Melencolia I

Albrecht Dürer, 1514. public domain. Source on Wikimedia Commons

Mysterium Cosmographicum solar system model

Johannes Kepler. public domain. Source on Wikimedia Commons

Ornithopter Leonardo da Vinci

Leonardo da Vinci, between 1486 and 1490. public domain. Source on Wikimedia Commons

Haeckel Stephoidea

Ernst Haeckel, 1904. public domain. Source on Wikimedia Commons

Portrait of Joseph Marie Jacquard (1752–1834), 1855

Engraved by V. Vebert, 1855. public domain. Source on Wikimedia Commons

Le diverse et artificiose machine del Capitano Agostino Ramelli Figure CLXXXVIII

Agostino Ramelli, 1588. public domain. Source on Wikimedia Commons

Diagram for the computation of Bernoulli numbers

Ada Lovelace, 1842. public domain. Source on Wikimedia Commons

Haeckel Discomedusae 8

Original: Ernst Haeckel. Scan: Ragesoss. Cleanup: Ilmari Karonen., 1904. public domain. Source on Wikimedia Commons