Chinese workers in the 19th century digging a well for the extraction of salt water. From Les Merveilles de la Science, published c. 1870
Archimedes is one of the most celebrated figures of the ancient world. He founded the science of hydrostatics, the study of the pressure and...阿基米德
courtyard of an ancient rural house with a well of water, a pulley, a bucket of water and a metallic chain - 滑輪 個照片及圖片檔
Members of Ajaccio's High Mountain Gendarmerie Platoon , an elite unit of the French Gendarmerie specialising in mountain rescue and law enforcement...
Construction worker installing a pole for a mobile telephone antenna in the city of Lima. Several cell phone companies are fighting over the...
Boy diving into the sea with a pulley between two rocky spurs, Gjogv, Eysturoy Island, Faeroe Islands.
a complex system of steam operated pulleys, conveyers and belts in gold mining town museum. - 滑輪 個照片及圖片檔
a navy sea king helicopter lowers a stretcher to evacuate a seriously injured walker who had fallen 250 feet on bow fell in the lake district uk - 滑輪 個照片及圖片檔
