Old waves

<n>Ariadne Sleeping</n>, a 1932 wood-engraving by artist <n>Gertrude Hermes</n>.

<n>Cannon Rock</n> (1895) by American artist <n>Winslow Homer</n>.

<n>'Calx carbonata' [Ammonite with crystals]</n>, an 1803 illustration by <n>James Sowerby</n>.

An eclipse seen from inside an <n>O'Neill Cylinder</n> space colony. Painting by <n>Don Davis</n> for a 1975 <n>NASA</n> study.

A <n>Nautilus shell</n> photographed by <n>Tom Brakefield</n>.

Guide me through the dark by artist <n>Julia Soboleva</n>.

A hand-colored copperplate engraving on conchology by <n>Martin Frobenius Ledermüller</n> from 1810.