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Tourniquet being applied to an arm on a training dummy A combat tourniquet commonly used by combat medics (military environment) and EMS (civilian environment).. A tourniquet is a device that is used to apply pressure to a limb or extremity in order to create ischemia or stopping the flow of blood.
Emergency tourniquets are cuff-like devices designed to stop severe traumatic bleeding before or during transport to a care facility. They are wrapped around the limb, proximal to the site of trauma , and tightened until all blood vessels underneath are occluded.
AP World History: Modern was designed to help students develop a greater understanding of the evolution of global processes and contacts as well as interactions between different human societies. The course advances understanding through a combination of selective factual knowledge and appropriate analytical skills.
Ancient history covers all continents inhabited by humans in the period 3000 BC – AD 500, ending with the expansion of Islam in late antiquity. [1] The three-age system periodises ancient history into the Stone Age, the Bronze Age, and the Iron Age, with recorded history generally considered to begin with the Bronze Age. The start and end of ...
During the growth of the ancient civilizations, ancient technology was the result from advances in engineering in ancient times.These advances in the history of technology stimulated societies to adopt new ways of living and governance.
Ceccarelli, Marco (2000), International Symposium on History of Machines and Mechanisms: Proceedings HMM Symposium, Springer, ISBN 0-7923-6372-8. Chattopadhyaya, Debiprasad (1986). History of science and technology in ancient India: the beginnings. Firma KLM Pvt. Ltd. ISBN 81-7102-053-4. OCLC 45345319. Choudhury, Sarojakanta. (2006).
Ancient Egypt was one of the world's first civilizations, with its beginnings in the fertile Nile valley around 3150 BC. Ancient Egypt reached the zenith of its power during the New Kingdom (1570–1070 BC) under great pharaohs. Ancient Egypt was a great power to be contended with by both the ancient Near East, the Mediterranean and sub-Saharan ...
Onager with a bowl bucket Sketch of an onager with a sling, a later improvement that increased the length of the throwing arm, from Antique technology by Diels.. The onager (UK: / ˈ ɒ n ə dʒ ə /, / ˈ ɒ n ə ɡ ə /; US: / ˈ ɑː n ə dʒ ə r /) [1] was a Roman torsion-powered siege engine.