Ptolemy
História das Matemáticas em Portugal
Geometry / Science
Islamic contribution to sciences
Algebra / Trigonometry
La Octava Esfera o Estrellas Fijas
Constellation / Ptolemy
Hacyan Shahen - El Descubrimiento Del Universo [Doc]
Galileo Galilei / Heliocentrism
Die Kleine Astrologiefibel
Astrology / Horoscope
_mecanica.apostila
Gravity / Ptolemy
