LuciaC@luciacee

ติดตาม

1820 French ring telescope

A French ring dating back to around 1820 conceals a miniature Galilean telescope. During the 18th and 19th centuries, telescopes were frequently incorporated into novelty objects. The optical design, which pairs a convex lens with a dispersing lens, was first developed in Italy during the late 16th century. More details can be found at t.co/9GhPlwLSCJ

2mo

LuciaC@luciacee

ติดตาม

1820 French ring telescope

A French ring dating back to around 1820 conceals a miniature Galilean telescope. During the 18th and 19th centuries, telescopes were frequently incorporated into novelty objects. The optical design, which pairs a convex lens with a dispersing lens, was first developed in Italy during the late 16th century. More details can be found at t.co/9GhPlwLSCJ

2mo