Posts tagged Gravure

Reflection in two parallel plane mirrors: multiple images of an object placed between them.

From El mundo físico: gravedad, gravitación, luz, calor, electricidad, magnetismo, etc. / A. Guillemin. - Barcelona Montaner y Simón, 1882.

(source)

Reflection in two parallel plane mirrors: multiple images of an object placed between them.

From El mundo físico: gravedad, gravitación, luz, calor, electricidad, magnetismo, etc. / A. Guillemin. - Barcelona Montaner y Simón, 1882.

(source)


Diagram of an eclipse of the sun, with the moon casting a shadow cone, c. 1260.
Calendar, Tables for art of computus, Computus, Quadrans, De Sphaera, Algorismus, Cautelae
wallacegardens

Diagram of an eclipse of the sun, with the moon casting a shadow cone, c. 1260.

Calendar, Tables for art of computus, Computus, Quadrans, De Sphaera, Algorismus, Cautelae

wallacegardens