Yellow-metal finger ring. Inscription inside the ring: PRIMA DOUBLE JPS 60. Some small black spots inside the ring. These objects are found in Sarek in the summer of 1974., when th...

Blasting lengths in a camera obscura (Figure 10), experiment with the Torricellian tube (Figure 15)

DFG technology history (digitalization)...

Barometer

This barometer was made for the assembly hall of the States General in the Binnenhof at The Hague. The coats of arms of the Republic of the Seven United Provinces are arranged arou...

Salvador Dalí, Barometer Woman (Barometer) from Time (1976)

Lithograph on Arches, 30 × 21 in...

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