Chronovisor: The Vatican’s Secret Device to See Through Time
Source: Chronovisor: The Vatican’s Secret Device to See Through Time, The Why Files, 14:37, uploaded 2022-07-28, category Science & Technology, Watch Later position 965.
The Why Files begins in the Vatican’s Apostolic Archives, which it presents as an underground fortress with vaults, climate-controlled rooms, and more than fifty miles of shelves. Among the objects supposedly hidden there is the chronovisor, a device that can show events from any time in the past. The story stays alive because two priests, Pellegrino Ernetti and François Brune, said that they had seen the machine and believed that it might still exist.
The archive and the ferry ride
Pellegrino Ernetti was a Benedictine monk whom the programme describes as a scientist, a music scholar, a linguist, and a student of electronics, physics, and occult subjects. In Venice he met François Brune, a French priest who shared his interest in languages, science, and history. During a ferry ride along the Grand Canal, they discussed different readings of the Bible. Ernetti interrupted the conversation with a claim that seemed to remove the need for interpretation. He said that the events could be seen directly, so that a person could know what had happened with their own eyes.
Brune first took this as a joke. Ernetti then described a device he had helped develop in the deepest levels of the Vatican archive. The chronovisor could select a time and place, reconstruct the scene on a screen, and show the operator events from the past. It could not carry anyone through time. Ernetti said that he had used it to hear speeches by Napoleon and Mussolini and to observe ancient Rome, where Cicero impressed him as much as later histories claimed. The programme illustrates that story with a speech from Gladiator, a small joke that also shows how easily a historical claim can take on the texture of cinema.
Brune asked about the Bible. Ernetti said that he had seen the final days of Jesus, including the crucifixion, as well as the creation of the Ten Commandments, the Last Supper, the destruction of Sodom and Gomorrah, and other biblical scenes. Brune remained doubtful. Ernetti had the education and reputation to make the claim unsettling, although Brune knew that he lacked the practical skill to build such a machine alone. Ernetti agreed. He said that a larger scientific team had helped him.
Residual light and sound
The origin story reaches back to 1952, when Ernetti worked at the Catholic University of Milan to restore recordings of Gregorian chant. Agostino Gemelli, the university’s founder, heard a voice on one recording and thought that it belonged to his dead father. The voice carried no revelation from beyond the grave. It recorded Gemelli’s father arguing with someone about the price of shoe wax. Gemelli’s father had been a cobbler, and Gemelli took the recording as a gift from God. Ernetti wondered whether a physical explanation could account for the voice.
The programme links this question to electronic voice phenomena. Ernetti asks whether the sights and sounds of an event continue to exist as energy after the event has ended, and whether a machine could detect them. Gemelli’s position at the Pontifical Academy of Sciences gave him the means to fund an investigation. Ernetti says that he assembled twelve scientists and names Enrico Fermi and Wernher von Braun among them. The video supplies no records from the team, so their involvement remains part of Ernetti’s account.
Ernetti’s proposed method treats light and sound as traces that can be recovered. A set of antennas would detect residual electromagnetic radiation, then translate it into images and sound. The operator would choose a date and a location, after which the machine would reconstruct the scene on a large cathode-ray tube. The explanation borrows the familiar fact that sound can be pressed into vinyl and played back later, extending that idea to every historical event. The programme presents this as the machine’s working principle, without a test or a technical document that would show how the signal could survive and remain intelligible.
A machine too dangerous to keep
Brune asks what happened to the device. Ernetti says that the team brought it to Pope Pius XII after understanding what they had built. A machine that could observe any place and time could expose state secrets, support blackmail, or help a ruler control a population. Ernetti says that the Pope ordered the chronovisor dismantled and forbade the team from discussing it. He told Brune that this was the first time he had spoken about the device in more than a decade.
Brune accepted the danger of such a machine while asking for evidence that it had worked. Ernetti offered the lost Roman play Thyestes as his proof. Quintus Ennius, who lived from 239 to 169 BCE, wrote the play during the Roman Republic. Only fragments of his work survive, and the text of Thyestes had disappeared apart from a few lines. Ernetti claimed that the chronovisor took him to Rome in 169 BCE, where he watched the play in a public square. Since he knew Latin, he said that he could transcribe the performance and restore the text after two thousand years.
The claim reached the public in 1972, when the Italian magazine La Domenica del Corriere published an article with the headline “A machine that photographs the past has finally been invented”. Several photographs followed. One, attributed to Ernetti, supposedly showed Jesus walking with his followers. Another supposedly showed the crucifixion. In 2002 Brune published Le nouveau mystère du Vatican, which described his relationship with Ernetti, repeated the chronovisor story, and included blueprints that he said came from the project.
Ernetti died in 1994 and continued to insist that the machine was real. Brune died in 2019 after publishing books and papers on theology, quantum physics, electronic voice phenomena, spirit communication, and parapsychology. The programme treats their continued belief as the reason the story deserves a closer look. Two respected priests had attached their names to a claim that could have destroyed their reputations, and the Vatican denied the story as fantasy.
The evidence starts to fail
The programme then lists the problems. Everyone who could have confirmed the project is dead. Fermi had already died when the story emerged, and von Braun never mentioned the machine, although the programme points out that both men had worked on secret projects during and after the Second World War. The photographs also fail as evidence.
The alleged crucifixion photograph resembles a statue in a church in central Italy. The programme identifies the sculptor as the Spanish artist Lorenzo Coullaut Valera, who made the statue shortly before his death in 1931. Brune’s explanation was that Valera had based the statue on a nun’s vision of the crucifixion. The presenter finds the explanation weak because the image and statue appear identical. The programme’s own point remains simple: the image has a known artistic source.
Two other images acquired the same association over time. One appears in the story as a photograph of Johannes Raphael Wehle’s painting Jesus Among the Wheat Fields, made around 1900. The other reproduces Eugène Burnand’s 1898 painting Peter and John Running to the Tomb. Neither image came from Ernetti’s alleged machine. They entered the legend because later retellings treated familiar religious artwork as further evidence.
Ernetti’s reconstruction of Thyestes also fails to convince specialists. He produced about 150 lines and called them the complete play, although the programme says that a Roman tragedy of this kind would probably have run to a thousand lines or more. Linguists found the Latin clumsy and identified words that would not enter the language for at least two centuries. The text therefore reads like a modern composition rather than a transcription made in ancient Rome.
After Ernetti’s death, an anonymous person who claimed to be a distant relative said that Ernetti had confessed on his deathbed. According to this account, the photograph and the Thyestes text were fake, Fermi had never worked on the project, and Ernetti still maintained that the chronovisor itself was real. Another supposed relative said that Ernetti had invented the whole story to attract people to the church. The programme treats both accounts with suspicion because the relatives cannot be identified or checked.
Brune rejected the confession. He said that the church had forced Ernetti to make it. That leaves the story with a final piece of institutional ambiguity. In 1988, the Catholic Church issued a decree saying that anyone caught using a machine like the chronovisor would be excommunicated. The programme asks why the church would issue such a statement if the machine had never existed. A rule against a machine can record a real concern, a response to a rumour, or a way to close down a story. The decree cannot decide between those possibilities.
The wish that the machine exists
The presenter admits that he wanted the chronovisor to be real when he first heard the story. Believers imagine that the church keeps the machine hidden and uses it to influence world events. That version turns the chronovisor into a story about power rather than a device for satisfying historical curiosity. A technology that could watch anyone, anywhere, at any time would give its owner an extreme form of control. The programme’s fear is directed at every possible steward of that power, including governments and organised religion.
The Why Files ends without resolving the machine’s existence. The witnesses had reputations that make a simple lie difficult to explain, while the surviving evidence consists of a discredited photograph, an unconvincing Latin text, an unverified confession, and a church decree whose meaning remains open. The presenter does not know whether the chronovisor ever worked. He hopes that it never did.
Limits
This note follows The Why Files’ reconstruction of the chronovisor story. The English automatic captions contain several misspellings of proper names, which I have normalised where the surrounding account and the named works make the intended person clear. The programme gives no technical paper, archive record, interview transcript, or independent account from Fermi or von Braun. Its claims about the Vatican archive, the twelve-person team, Gemelli’s recording, the Pope’s order, the 1988 decree, and Brune’s explanation of the photograph therefore remain claims made in the video.
The two strongest pieces of supposed evidence fail within the programme’s own account. The crucifixion image has a pre-existing artistic source, and the Thyestes text has linguistic and structural problems. Those failures weaken the case for Ernetti’s machine without proving what Ernetti believed, who helped him, or why Brune defended the story. The remaining uncertainty belongs to the history of the claim, not to evidence that the device could recover the past.
Further reading / references
- François Brune, Le nouveau mystère du Vatican, A. Michel, 2002. The book is the source named in the video’s description and the account Brune published about Ernetti.
- Peter Krassa, Father Ernetti’s Chronovisor: The Creation and Disappearance of the World’s First Time Machine, New Paradigm Books, 2000. The book includes the claimed Thyestes reconstruction and further material about the device.
- La Domenica del Corriere, 1972, the Italian magazine that published the article and photographs described in the video.