![]() ![]() The Adjustable WrenchĪccording to Temple, the First Century B.C. Right around the beginning of the Han Dynasty in the early 200s B.C., Chinese metallurgists built the first blast furnaces, which pumped a blast of air into a heated batch of iron ore to produce cast iron, according to Chinese technology historian Donald B. The first time that happened, nobody in the court reportedly felt anything, but a few days later, a messenger from a village 400 miles away arrived to inform the emperor that an earthquake had occurred there. When it picked up a vibration, it dropped a ball from the mouth of a metal dragon into a metal frog, creating a loud clang. 132 Its design was simple-an urn equipped with a pendulum. But he’s probably best known for creating the first device for detecting distant earthquakes, which he introduced to the Han court in A.D. Zhang Heng, an early Chinese scientist, explored fields ranging from astronomy to clock-making. A ball falls from the dragon's teeth into the mouth of a toad below to record the event. Arriving shock waves displace a pendulum linked to a mechanism which opens the jaws of the dragon facing the direction of the earthquake. We seek to retell the story of our beginnings.The Chinese astronomer, mathematician and seismologist, Zhang Heng (78-139 A.D.) described the earliest seismoscope known in about 132 A.D. Our open community is dedicated to digging into the origins of our species on planet earth, and question wherever the discoveries might take us. We’re the only Pop Archaeology site combining scientific research with out-of-the-box perspectives.īy bringing together top experts and authors, this archaeology website explores lost civilizations, examines sacred writings, tours ancient places, investigates ancient discoveries and questions mysterious happenings. The goal of Ancient Origins is to highlight recent archaeological discoveries, peer-reviewed academic research and evidence, as well as offering alternative viewpoints and explanations of science, archaeology, mythology, religion and history around the globe. And while some people may seem content with the story as it stands, our view is that there exist countless mysteries, scientific anomalies and surprising artifacts that have yet to be discovered and explained. The earliest known written documentation of the Chinese abacus dates to the 2nd century BC.Īt Ancient Origins, we believe that one of the most important fields of knowledge we can pursue as human beings is our beginnings. The beads are moved up and down during calculations.Īccording to legend, the Chinese abacus (‘suan pan’ or ‘zhusuan’) was invented by mythical Yellow Emperor (Huangdi), father of Chinese civilization. There are five beads on each rod on the bottom deck, known as earth. The upper deck, which is known as heaven, has two beads on each rod. The typical abacus has a hardwood frame and hardwood beads, with two decks and more than seven rods. Now this ‘ancient computer’ has received credit for its historical and cultural importance by being added to the world intangible cultural heritage list. Some devices can be quite large and complex. It can be used for high-speed addition, subtraction, multiplication, division, square roots, cube roots and other calculations. The abacus, also called a counting frame, is a calculating tool that was in use centuries before the adoption of the written modern numeral system and is still widely used by merchants, traders and clerks in Asia, Africa, and elsewhere. ![]()
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