Tsar Bell, Moscow

Tsar Bell, Moscow

The Tsar Bell is a monument of Russian bell casting art of the 18th century. The height with the jumper is 6.24 m, the diameter is 6.6 m; weight 202 tons. It has never been used as intended. The bell was cast by order of Empress Anna Ioannovna in 1730 in memory of her descendants of her reign. In 1737, during the Trinity fire, it was damaged and lay in the ground for about a century. In the first half of the 19th century, it was raised and installed on a pedestal in the Moscow Kremlin near the Ivan the Great Bell Tower.

 

History

Predecessors

The Tsar Bell, known in our time, had several predecessors. The first, the Godunov bell, was cast in 1599. It was located on Ivanovskaya Square in the Kremlin. The bell surprised both local residents and travelers from other countries with its size and beauty - it weighed 33.6 tons. The bell served for almost 50 years, but broke due to a strong fire in Moscow.

In 1651, they started talking about casting a bell weighing 130 tons. Tsar Alexei Mikhailovich wanted to entrust the work to Hans Falk, but Falk asked for five years to complete and did not want to use the copper from the broken bell. Moscow masters - Danila Matveev, his son Emelyan Matveev, assistants Kirill Samoilov, Vasily Borisov and Semyon Simonov - were ready to do a similar job in a year and using old copper. The bell was cast in 1654, using, among other things, the metal of the previous one, and in December of the same year it already rang from the bell tower, its sound spread over a distance of up to 7.5 kilometers. This bell soon broke from a strong blow with the tongue, and in 1655 Alexander Grigoriev took up recasting it. The master worked on the bell for ten months, from February to December. In 1661, the bell fell to the ground, but remained intact, and in 1674 it was hung up again. The second bell almost repeated the fate of the first - it crashed in 1701 due to a fire, having served for almost 50 years.

 

Making a bell

In 1730, Empress Anna Ioannovna wished to leave the memory of her reign and ordered the broken Grigoriev bell to be recast.

The decree of July 26, 1730 read:
Later, in the past years, by Decree of the blessed memory of the grandfather of our Grand Sovereign Tsar and Grand Duke Alexei Mikhailovich, a large Bell was built for the Assumption Cathedral, in which the weight of eight thousand pounds and this Bell was damaged by fire, for this reason, we, jealous of the will of our ancestors, indicated that the Bell should be poured again with replenishment, so that it contains ten thousand pounds in the decoration, and for casting that Bell, take copper from the Berg Collegium and from the Mint, where a decent one will appear, and take tin from the Artillery, and buy all sorts of supplies and hire real workers at a price; what about this entire departure and the raising of that Bell is due to the monetary treasury, which is now available for the expenses of the Preobrazhensky Order; and that dispatch should be in the Artillery, and order that it should take place with all diligent diligence soon and supplies would be bought in advance.
Decree of July 26, 1730

This time the weight of the new bell was to be 200 tons. At first, they were looking for specialists abroad to complete the task. The Frenchman Germain, the royal mechanic, "royal goldsmith and member of the Academy of Sciences", received a generous offer, but decided that it was a joke and refused to complete the task. Ivan Fedorovich Motorin and his son Mikhail Ivanovich got down to business.

Little is known about Ivan Motorin. Date of birth not clear. In 1686, he inherited from his father, Fyodor Dmitrievich Motorin, a foundry on Sretenka, became its owner, and, together with his brother Dmitry, continued the bell-casting business. Information about 12 bells made by Ivan Motorin has been preserved, of which two more are in the Kremlin: Great Lenten (1704) and Nabatny (1714).

The bell was planned to be cast according to the drawings from the Artillery Office. First, Motorin made a small model and sent it with drawings and estimates to St. Petersburg for approval. Discussion of the project and preparation for implementation took two years. In November 1732, to a request from the Senate about the progress of work, Motorin “answered that the blanks would be made from June 29 in two and a half months, from September 15, the manufacture of the casing would begin, and the mold would be ready for casting by December 13.” Work on the bell began in January 1733. Due to the huge size of the Tsar Bell, they decided to immediately make it in the Kremlin. A hole ten meters deep was dug on Ivanovskaya Square, and the space between the bell shape and the walls of the foundry pit was covered with earth and rammed so that the casing could withstand the pressure of the molten metal. Four casting furnaces were stacked around the casting pit and a casing lifting device was installed. Each furnace contained up to 50 tons of metal, from the furnace it entered the casting bowl of the mold through special brick grooves. Since there was not enough metal from the old bell, Motorin requested an additional 5 tons of tin and 16 tons of copper.

On November 26, 1734, permissions were received, a solemn service was held in the Assumption Cathedral and received a church blessing, after which metal smelting began. At work directly in the Kremlin, 83 workers were employed, and in total, almost 200 people worked on the bell.

Difficulties immediately began at work. There were already 94 tons of copper in the furnaces, later another 21 tons were added. On November 28, tin and copper weighing 33 tons were loaded into the furnace. And after 43 hours of operation of the furnaces, they found that two of them were lifted by the hearths (the horizontal lower surface in the furnace furnace) and the copper was gone. Repairing furnaces "on the go" almost led to a fire and a subsequent stoppage of work. The craftsmen decided to melt the remaining metal in two furnaces and add 106.5 tons of tin and copper. For this, 600 bells weighing 27 tons, 68 tons of cannon copper and 11 tons of tin were brought from the cannon yard. On November 29, the situation with stoves worsened. In order to prevent leakage of copper, the molten metal was released into spare furnaces and started repairing the furnaces. At the same time, it was discovered that the machine for lifting the bell-shaped casing was on fire. It was not possible to quickly put out the fire, because of this the bell shape was damaged. It had to be dismantled to check the condition and fix the damage. The next day, Ivan Motorin gave a written explanation of what had happened.

Ivan Motorin died less than a year after the start of work - on August 19, 1735, and the work completely passed to his son Mikhail. Under Mikhail, foundry workers remained - his father's serf Gavril Lukyanov "son of Smirnaya" and the townsman of Ogorodnaya Sloboda Andrey Fedorov "son of Molyars". Reports testify to the increasing pace of work: from October 6 to October 12, 57 people were employed, the next week - 85, then - 114, and from October 27 to November 2 - 166.

By the beginning of the new casting, taking into account fire prevention measures, another 400 people took part in the work. On November 23, 1735, the furnaces were lit again, and after 36 hours of melting, copper was fired into a bell shape. Casting took 46 minutes, 7 tons of metal were delivered every minute. The casting was completed in two days. The height of the bell was 6.24 m, the diameter was 6.6 m, and the weight was about 200 tons. When the metal cooled, work began on applying decorative ornaments and inscriptions. At that time, they could not get a huge bell out of the casting pit.

For the casting of the Tsar Bell in 1736, Mikhail Motorin received a reward of 1,000 rubles and the rank of foundry workshop master.

On the surface of the bell, the masters applied bas-reliefs with images of Tsar Alexei Mikhailovich and Empress Anna Ioannovna. There are also images of Jesus Christ with the Virgin Mary, the apostles Peter and John the Baptist. The engraver responsible for the decor was the master Fyodor Medvedev.

 

Damage

On June 9 (according to the new style), 1737, the Trinity Fire occurred in Moscow, which was considered great until the fire of 1812. According to the generally accepted version, during this fire, a wooden building over a pit with a bell caught fire, burning logs began to fall into it. During the rescue, the bell fell from special bridges, which then cost 62 thousand rubles, gave 10 longitudinal through cracks, and a piece weighing 11.5 tons broke off from it.

Versions of the appearance of the fragment
When the Trinity fire began, the chased work was coming to an end. The bell was filled with water so that it would not melt, but uneven and rapid cooling led to the formation of a dozen cracks and a fragment.
The fragment could appear after the fall of the bell during the rise.
The bell could crack due to technological errors in casting, which were attributed to a fire.
The bell was hung up and fell down during the fire

Modern research has cast doubt on the fact that the ductile bell-bronze bell was shattered during a fire, and suggest that the cracks were caused by faulty technology. The version is also supported by the fact that the bell stood on the grate after the fire - it could not have fallen so exactly in the same place that it occupied after low tide. Therefore, most researchers believe that the bell was not taken out of the pit - they repeatedly and unsuccessfully tried to raise it after the fire.

The broken bell remained in the ground for almost a hundred years, as it was considered too heavy. In 1792 and 1819, unsuccessful attempts were made to raise the bell, and in 1821 the pit was cleared and enclosed with stairs and railings. Tours were organized for those wishing to see. There were projects to raise the bell and restore it by soldering. Projects were rejected because of the high cost and fear that it was impossible to solder an 11.5-ton piece with a guarantee of maintaining a normal sound. Therefore, the bell has been preserved in the form in which it was removed from the pit in 1836.

 

Climb

The project for lifting and installing the bell on the pedestal was developed by the architect Ivan Mironovsky in 1827-1831. The French engineer Auguste Montferrand was commissioned to carry out the project. It took six months to prepare. The first ascent ended unsuccessfully: due to the gravity of the bell, four ropes burst at different times and one of the blocks broke. The workers had to put logs under the bell and return it to its original place. For the second attempt, new ropes were ordered, the number of gates was increased to 20. On July 23, 1836, the second rise of the bell began, it lasted 42 minutes 33 seconds. When the bell was raised, the pit was covered with a platform of logs, skids were placed on the skating rinks and the bell was lowered onto them. In three days, the bell was moved and on July 26 (according to the old style) was installed on a pedestal next to the bell tower of Ivan the Great, where it is currently located[1]. Since that time, the bell has become one of the main Russian sights. The bell was placed on a pedestal trimmed with white stone (designed by the same Montferrand), inside - red brick. A commemorative plaque with the text was fixed on the pedestal: “This bell was cast in 1733 by order of the EMPRESS Anna Ioannovna. He remained in the land for a hundred and three years and by the will of the most pious SOVEREIGN EMPEROR Nicholas I was appointed in the summer of August 1836 on the 4th day. Montferrand crowned the bell with an orb - a symbol of royal power, thanks to this orb the bell received its nickname "Tsar Bell".

In the autumn of 1979, the Tsar Bell was restored - it was cleaned of late paintwork, which made it possible to study the relief decorations.

Modern technologies make it possible to produce a larger bell. But when such a bell is struck, most of the waves will be in the infrasonic spectrum, which can cause anxiety and even panic in people and animals. Studies show that the optimal weight for heavy bells is 32 tons.

 

Chemical composition

According to the analysis of the laboratory of the mine corps, the alloy of the Tsar Bell contains 84.51% copper, 13.21% tin, 1.25% sulfur, later revealed another 0.036% gold, which corresponds to 72 kilograms, and 0.26% silver, which corresponds to 525 kilograms.

 

Bell Diagnostics

In the mid-1980s, some deformation of the pedestal was noticed, as a result of which there were fears about the possible growth of cracks in the bell. At the request of the Minister of Culture of the USSR, and in accordance with the instructions of the Minister of Defense of the USSR, the Military Academy named after F. E. Dzerzhinsky (now the Academy of the Strategic Missile Forces named after Peter the Great) was instructed in 1986 to carry out a set of works on the restoration and preservation of the Tsar Bell. The real state of its cracks was assessed using the acoustic emission (AE) method. To carry out AE diagnostics of the bell, employees of the Research Institute of Mechanics and Applied Mathematics of the Rostov State University (NIIM and PM RGU) were involved under the guidance of the head of the AE laboratory, Ph.D. S. I. Buylo. From the Academy F. E. Dzerzhinsky, these works were provided by the colonel, Ph.D. n. A. I. Gnevko. Diagnostics of the Tsar Bell was carried out in two stages with the help of an instrumental AE complex of our own design brought from Rostov-on-Don.

At the first stage, the parameters and features of the AE radiation of the bell material were studied. This part of the work was carried out on the territory of the Academy. F. E. Dzerzhinsky when testing specially made large-sized (more than 10 cm thick and weighing about 100 kg) samples from a bronze alloy, identical to the material of the bell. On the second stage, already in the territory of the Kremlin, work was carried out on acoustic calibration and diagnostics of the Tsar Bell itself. The work on the bell consisted, if we do without scientific terms, as if in its "listening" for the presence of ultrasonic radiation of growing cracks. It was found that the state of the Tsar Bell at the time of diagnosis was satisfactory, and catastrophic destruction does not threaten it in the near future.

For further monitoring of the condition of the cracks in the bell, the Rostovites were offered to make a multi-channel AE diagnostic system with the installation of a separate sensor at the top of each of the large cracks. However, for the permanent installation of receiving AE sensors on the bell, it was necessary to coordinate many different issues. For example, it was necessary to prove that a constantly working system listening to a bell would not be able to listen to anything else “inappropriate” around, etc. The discussion and coordination of these issues dragged on. Soon perestroika came, and everyone was not up to the bell.

Judging by some external signs, a slight deformation of the bell still continues. The “tradition” of pushing metal coins into the cracks of the bell is also alarming. And if earlier small coins had a composition close to the material of the bell, then the current ones are made of completely different metals, which, in the presence of moisture, can cause noticeable electrochemical corrosion of the material inside the cracks. For a reliable assessment of the state of the Tsar Bell in the future, it is necessary to periodically carry out a procedure for diagnosing the possible growth of cracks in its walls using non-destructive testing methods.

 

Analogues

The largest bell of the Trinity-Sergius Lavra was also called "Tsar". The bell was made in 1748 (its weight was 64 tons), in 1930 it was destroyed, recast at the Baltic Shipyard in St. Petersburg in November-December 2003 (the weight of the new Lavra Tsar Bell is 72 tons). Today it is the largest functioning bell in Russia.

 

Recreating the sound

In the spring of 2016, a team of scientists from the University of California at Berkeley, Stanfod University and the University of Michigan reproduced how the Tsar Bell might sound if it had not been damaged. To do this, scientists created a mathematical model and, using the finite element method and other types of modeling, calculated how an object from a certain material is deformed under a certain influence and what sound accompanies this deformation. First, scientists reproduced the sounds of existing bells and compared them with real ones, and then demonstrated how the Tsar Bell would sound.

 

Bell in culture

In August 1919, the VSYUR command issued its own currency, on banknotes in denominations of 1000 rubles there was an image of the Tsar Bell. Because of this, the money was nicknamed "bells".