#sundial – @blackheartedbrigand on Tumblr

Astronomical compendium, late 16th century. Germany. Medici Collections. Museo Galileo

There are 3 compartments: In the first is an astrolabe and a lunar calendar. Between the first and second is an hour circle. The second houses a sundial and a magnetic compass for orientation. The third contains the Horae planetarum table and an horary quadrant with a shadow square.

Source: catalogue.museogalileo.it

#astrolobe #lunar calendar #astronomical compendium #sundial #compass #hector's stuff

blackheartedbrigand reblogged

seadragalge

peashooter85

Early 19th century noon sundial cannon.

The cannon was loaded with a charge of gunpowder. At noon the glass lense would direct a beam directly on the touch hole of the cannon, causing it to fire. Kind of like an alarm clock.

Source: liveauctioneers.com

#Antique #sundial #cannon

blackheartedbrigand reblogged

messingaroundinboats

jade-cooper

Impossible lost the way with this by Cristian Melone

#sundial #compass #astonomy #navigation #age of sail