About Dalian battery Iraq
The Baghdad Battery is the name given to a set of three artifacts which were found together: a ceramic pot, a tube of copper, and a rod of iron. It was discovered in present-day Khujut Rabu, Iraq in 1936, close to the metropolis of Ctesiphon, the capital of the Parthian (150 BC – 223 AD) and Sasanian (224–650 AD) empires, and it is believed to date from either of these peri. The Baghdad Battery is the name given to a set of three artifacts which were found together: a ceramic pot, a tube of copper, and a rod of iron. It was discovered in present-day Khujut Rabu, Iraq in 1936, close to the metropolis of Ctesiphon, the capital of the Parthian (150 BC – 223 AD) and Sasanian (224–650 AD) empires, and it is believed to date from either of these periods.Its origin and purpose remain unclear. Wilhelm König, at the time director of the National Museum of Iraq, suggested that the object functioned as a galvanic cell, possibly used for electroplating, or some kind of electrotherapy. There is no electroplated object known from this period, and the claims are universally rejected by archaeologists. An alternative explanation is that it functioned as a storage vessel for sacred scrolls.Ten similar clay vessels had been found earlier. Four were found in 1930 in Seleucia dating to the Sassanid period. Three were sealed with bitumen and contained a bronze cylinder, again sealed, with a pressed-in papyrus wrapper containing decomposed fiber rolls. They had been held in place with up to four bronze and iron rods sunk into the ground, and their cult meaning and use are inferred. Six other clay vessels were found nearby in Ctesiphon. Some had bronze wrappers with badly decomposed cellulose fibers. Others had iron nails or lead plates.The artifact disappeared in 2003 during the US-led invasion of Iraq.
The artifacts consist of apot approximately 140 mm (6 in) tall, with a 38 mm (1.5 in) mouth, containing amade of a rolledsheet, which houses a singlerod. At the top, the iron rod is isolated from the copper by , with plugs or stoppers, and both rod and cylinder fit snugly inside the opening of the jar. The copper cylinder is not watertight, so. The artifacts consist of apot approximately 140 mm (6 in) tall, with a 38 mm (1.5 in) mouth, containing amade of a rolledsheet, which houses a singlerod. At the top, the iron rod is isolated from the copper by , with plugs or stoppers, and both rod and cylinder fit snugly inside the opening of the jar. The copper cylinder is not watertight, so if the jar were filled with a liquid, this would surround the iron rod as well. The artifact had been exposed to the weather and had suffered corrosion. Austrian archeologistthought the objects might date to theperiod, between 250 BC and AD 224. However, according to St John Simpson of thedepartment of the , theirwere not well-recorded, and evidence for this date range is very weak. Furthermore, the style of the pottery is (224–640). Albert Al-Haik noted original reports from the 1936 dig at Khuyut Rabbou'a giving the location as an area northeast of Baghdad, "some two miles off the Baghdad eastern bund."W. B. Hafford gives context to the discovery of the artifacts in his reaction video to Milo Rossi's video on the subject.
Similar vessels, which can be distinguished primarily by their contents, had previously been found and examined more closely: Four sealed clay vessels were excavated atin 1930 under the archaeological direction of Leroy Waterman, University of Michigan.Three of these finds, dated to the late Sassani. Similar vessels, which can be distinguished primarily by their contents, had previously been found and examined more closely: Four sealed clay vessels were excavated at in 1930 under the archaeological direction of Leroy Waterman, University of Michigan.Three of these finds, dated to the late Sassanid period (5th to 6th centuries AD), were sealed with bitumen. These vessels contained a bronze cylinder, again sealed, with a pressed-in papyrus wrapper. Although writing could not be found on any of these largely decomposed fiber rolls, on the other hand these clay containers had been staked out with up to four metal rods made of bronze and iron sunk into the ground, their cult meaning and use are inferred.The fourth jar, also sealed, contained broken glass. In 1931, a German-American excavation expedition led byfound six more clay vessels in the immediately neighboring , including three sealed find objects, each with one, three and ten wrapped and sealed bronze rolls. Inside these bronze wraps were already badly decomposed cellulose fibers. Another clay vessel contained three sealed bronze cylinders. In the other two vessels, which were also sealed, there were plates of originally pure lead coated with lead carbonate in a find specimen; in the other ten heavily corroded iron nails, on which traces of a wrapped organic fiber material could be detected.
Its origin and purpose remain unclear.Wilhelm König was an assistant at thein the 1930s. He had observed a number of very fine silver objects from ancient Iraq, plated with very thin layers of gold, and speculated that they were . In 1938 he authored a paper offering the hypothesis that they may have formed a , perha. Its origin and purpose remain unclear.Wilhelm König was an assistant at thein the 1930s. He had observed a number of very fine silver objects from ancient Iraq, plated with very thin layers of gold, and speculated that they were . In 1938 he authored a paper offering the hypothesis that they may have formed a , perhaps used for onto objects.This interpretation is rejected by archeologists and scientists.Corrosion of the metal and tests both indicate that an acidic agent such as wine orwas present in the jar.This led to speculation that the liquid was used as an solution to generate anfrom the difference between theof the copper and iron .Supporting experimentsAfter the , Willard Gray demonstratedproduction by a reconstruction of the inferred battery design when filled with . W. Jansen experimented with(someproduce ) and vinegar in a cell and got satisfactory performance. In 1978, Arne Eggebrecht, a past director of thereportedly reproduced the electroplating of gold onto a small statue. There are no (direct) written or photographic records of this experiment. In an article from the BBC, Dr Bettina Schmitz, a res.
Lack of electrical connectionsThough the iron rod did project outside of the asphalt plug, the copper tube did not, making it impossible to connect a wire to this to complete a circuit.Lack of electrical connectionsThough the iron rod did project outside of the asphalt plug, the copper tube did not, making it impossible to connect a wire to this to complete a circuit.Electroplating hypothesisKönig himself seems to have been mistaken on the nature of the objects he thought were electroplated. They were apparently(with ). Paul Craddock of the said "The examples we see from this region and era are conventional gold plating and mercury gilding. There's never been any irrefutable evidence to support the electroplating theory".David A. Scott, senior scientist at the and head of its Museum Research Laboratory, writes: "There is a natural tendency for writers dealing with chemical technology to envisage these unique ancient objects of two thousand years ago as electroplating accessories (Foley 1977), but this is clearly untenable, for there is absolutely no evidence for electroplating in this region at the time".Paul T. Keyser of the University of Alberta noted that Eggebrecht used a more efficient, modern electrolyte, and that using only vinegar, or other electrolytes available at the time assumed, the battery would be very feeble, and for that and other reasons concludes that even if this was in fact a battery, it could not have been used for electroplating. However, Keyser still supported the bat.
Theprogrambuilt replicas of the jars to see if it was possible for them to have been used for electroplating or electrostimulation. On MythBusters'(23 March 2005), ten hand-made terracotta jars were fitted to act as batteries.was chosen as the to activate the electrochemical reaction between the co. Theprogrambuilt replicas of the jars to see if it was possible for them to have been used for electroplating or electrostimulation. On MythBusters'(23 March 2005), ten hand-made terracotta jars were fitted to act as batteries.was chosen as theto activate the electrochemical reaction between the copper and iron. Connected in series, the battery produced 4of electricity. When linked in series, the cells had sufficient power to electroplate a small token and to deliver current to acupuncture type needles for therapeutic purposes, but not enough to deliver an electric shock to MythBusters co-hostwho was instead pranked by co-hosts who hooked him up to a 10,000 volt cattle fence shock generator.Archaeologist commented on the show noting that no archaeological evidence has been found either for connections between the jars (which would have been necessary to produce the required voltage) or for their use for electroplating.
• – Spark plug supposedly encased in a 500,000-year-old geode• – Motif in the Hathor temple in Egypt• •– Antique electrical device that stores a high-voltage electri. • – Spark plug supposedly encased in a 500,000-year-old geode• – Motif in the Hathor temple in Egypt• • – Antique electrical device that stores a high-voltage electric charge• • – Objects that challenge historical chronology.
•(September 11, 2018). .• Rossi, M. [@Miniminuteman] (2022-09-30). Retrieved 2023-05-09.
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