Period

16 results for: altitudes

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Quinghai, the largest lake in China
ARP15A02_120

Quinghai, the largest lake in China

A meridian circle, used to determine altitude of celestial bodies, and a transit instrument, used for finding the celestial bodies crossing the meridian
ARP23A16_496

A meridian circle, used to determine altitude of c...

Engraving depicting the use of a cross-staff used to measure altitudes of celestial objects
ARP23A13_309

Engraving depicting the use of a cross-staff used ...

Engraving depicting the use of a cross-staff used to measure altitudes of celestial objects
ARP23A13_308

Engraving depicting the use of a cross-staff used ...

Engraving depicting the use of a cross-staff used to measure altitudes of celestial objects
ARP23A13_310

Engraving depicting the use of a cross-staff used ...

Engraving depicting the use of a cross-staff used to measure altitudes of celestial objects
ARP23A13_311

Engraving depicting the use of a cross-staff used ...

Female Workers
ARP18A07_422

Female Workers

Photograph of the Northern Lights
ARP18A20_209

Photograph of the Northern Lights

Exploring the upper air with a weather box kite
ARP17A23_278

Exploring the upper air with a weather box kite

Observers using a refracting telescope
ARP07113_010554P

Observers using a refracting telescope

Paul Bert
ARP07114_011118P

Paul Bert

Gemma Phrysius or Frisius
ARP07103_460000609

Gemma Phrysius or Frisius

Measuring the altitude of the sun with ring dials
ARP07103_460000615

Measuring the altitude of the sun with ring dials

Hevelius observing through refracting telescope
ARP07104_460001482

Hevelius observing through refracting telescope

Quadrant being used to obtain the altitude of a tower
ARP07105_460001574

Quadrant being used to obtain the altitude of a to...

Ptolemy
ARP07096_390002041

Ptolemy