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Standing in the Hypogeum is like being inside a giant bell. At certain pitches, one feels the sound vibrating in bone and tissue as much as hearing it in the ear. It’s actually quite thrilling.
"This acoustic phenomenon, together with the hypogeum’s mysterious nature and its suggestive ambience, resulted in the site becoming associated with a number of fantastic stories, urban myths and legends," says Katya Stroud of Heritage Malta. "Amongst these are stories of serpent priests, genetic mutation, humanoid beings, and screams of children lost in caves underneath the site. Despite their dubious origins and unfounded nature, these stories are still making appearances in local and foreign media. It is now up to science to help us zoom back onto the real questions about the nature of the Ħal Saflieni Hypogeum, particularly its acoustic design and effects."
... If one theory tests out as we suspect it might, then our Stone Age ancestors have left us a gift that has incredible relevance in the modern world: one that, for all our techno-savvy smartness, we would probably never have thought of again.”
in 2008 of an experiment in which regional brain activity in a number of healthy volunteers was monitored by EEG through exposure to different resonance frequencies. Their findings indicated that at 110 Hz the patterns of activity over the prefrontal cortex abruptly shifted, resulting in a relative deactivation of the language center and a temporary shifting from left to right-sided dominance related to emotional processing. This shifting did not occur at 90 Hz or 130 Hz.
A multi-disciplinary project has been outlined to undertake a challenging and unprecedented experiment. Once underway, on site in the Hypogeum, they will collect biofeedback data including EEG from living subjects exposed to naturally produced sound in the frequency of 110 Hz, emanating from the Oracle Chamber.
reply to post by SonOfTheLawOfOne
I have experienced acoustic anomalies elsewhere, but to be able to accomplish that in the depths of this chamber is rather impressive.
I've read that the King's chamber in the Great Pyramid has some interesting acoustical properties as well.
ancient peoples created sophisticated sonic illusions in ceremonial spaces ranging from Mayan temples to Stonehenge.
Humanity's fascination with sound runs deep. In Utah's Horseshoe Canyon, ancient people drew artwork where echoes are loudest. Around the world, Stone Age artists typically painted in caverns with the greatest reverberation.
Sound waves spinning around the head cause brainwave entrainment,
at aprox 3 to 12 cycles per second...
facilitating a relaxed suggestible state...this is built into many a mathmatical
temple and cathedral....
At 541 feet long and 240 feet wide, it was the largest in Mesoamerica, with walls on two sides and small temples at either end.
The temples formed a whispering gallery that amplified sounds spoken within them. A person speaking in a normal voice in one temple could be heard by those standing in the other temple 540 feet away, and to players on the ball field. Such voices would have sounded like they were coming from thin air.
"They could create other sounds, like a whooping bird flying from left to right," Lubman said. "The ball court was a matter of life and death for the players, and priests could also make sounds that sounded like fierce animals, such as rattlesnakes and jaguars."
"Perfect" human hearing spans frequencies 20 Hertz to 20 kiloHertz, a range of 11 octaves and larger than any musical instrument. It is also finely sensitive to air pressure modulations over many orders of magnitude, from as minute as 20 micropascals (the "noise of silence") to over 150 deciBels (a jet engine at 100 feet). Hearing is our most perceptive sense by far. At least one-third of the human brain is related in some way to sound perception or creation. Sound is intrinsic with life.
"This structure is unique in that it is subterranean, created through the removal of an estimated 2,000 tons of stone. Low voices within its walls create eerie, reverberating echoes, and a sound made of words spoken in certain places can be clearly heard throughout all of its three levels. Now, scientists are suggesting that certain sound vibration frequencies created when sound is emitted within its walls are actually altering human brain functions of those within earshot."
Malta's Hypogeum "Oracle Room" where a male voice speaking "vibrates other minds" in the larger chamber at 110-111 Hertz. The spirals are reminiscent of the Meru Foundation, and Daniel Winter's extensive research into sacred geometry
“these were a people who searched with a sense of purpose and dedication,with a knowledge and awareness in tunewith the totality of darkness and light.Theirs was a language of the amalgamation of science and art … The cyclic time factor of the life-death-rebirth pattern is reflected in these peoples’ obsession with the mystic spiral pattern …To think of the orbicular womb-like spaces of the Hypogeum and the mystery that lies hidden within them is sufficient to entice the curiosity of all who have the ecstasy of human transcendental knowledge close to their hearts”
One important piece of evidence pointingto the initial function of the Hypogeum is to be found in what has been appropriately named the Oracular room by Zammit. The acoustics of this chamberin relation to the remainder of the Hypogeum prove beyond any doubt that this subterranean megalithic structure had been designed for a supernatural function, whether this was religion, initiation, magic, medicine or mythology.
The Oracular room lies in the middle level; it has a “highly arched ceiling richly decorated with a red scroll interspersed with painted discs of different sizes. This mysterious pattern undoubtedly had a symbolic meaning, for the decoration adopted by primitive people was never casual but always had reference to the irreligion, magic or totemism”
A good example of how sound can effect a person is how the lowest notes on a pipe organ can stimulate the nerves in the solar plexus effecting emotion - causing an apprehensive feeling
To give you an idea of the age of this monument, the Pyramids were built around 2500 BC, Stonehenge was built around 2000 BC.
The limestone was carved out using tools made of flint, stone and deer horn. When the room known as “Holy of Holies” was discovered, some thought it was a medieval temple because the carving was so precise. It’s beyond amazing how these people were able to cut and polish such perfect lines. Most archeologists believe this indoor domed temple mirrors what the outdoor temples must have looked like. They stacked slabs of limestone on top of each other, gracefully cantilevering each layer from the upright walls towards the center. When the slabs met in the center, they carved out the dome ceiling of the interior. It’s so sophisticated and so perfect and yet they did it 5000 years ago.
Another chamber known as the “Oracle’s Chamber” has circular red ochre decoration painted on the ceiling of the stone, still in very good condition. The room has a magical resonance when activated by a certain timber of a deep male voice. Yes, the room actually vibrates.
The hypothalamus (from Greek ὑπό = under and θάλαμος = room, chamber)
Acoustic properties of limestone
Limestone has particular acoustic properties.
The Greeks chose limestone to line the seats in
their amphitheaters because of its ability to transfer the sound.
The Greeks probably used limestone