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burntheships
reply to post by Maltese5Rhino
The Times of Malta seems an interesting read, I was
searching to find out how far one can still walk in
these underground catacombs?
Older articles said one could go a long distance
underground. ( not that one would catch me doing it of course)
not even with a torch.
Maltese5Rhino
As a child my mum would drop me off all over the Island and Id spend hours upon hours just wandering the caves and systerns.... One I found really daunting one time where I got lost.. It as at the Germa Fort in Marsascala (Again South of Malta)
Since my little incident they blocked off the tunnels completely but they run all through out Marsascala and are built just like the ones in Valletta you can still go to.
burntheships
Your adventure brings up the images of an Indiana Jones movie, did you encounter
anything that was unusual to you as a child, or scary?
After reading the story of the missing children, I recalled a few Indy movies,
wondering if that was one of the stories that might have inspired the plot.
Thank you for posting the pictures, the one structure looks massive!
TheBloodRed
They say the megaliths were built by giants but the Hypogeum seems very much to be directed for regular human use.
burntheships
reply to post by Maltese5Rhino
I read that concerning this Hypogeum at Hal Saflieni, due to the
mass amount of skeletons, and the proximity of the remains
that were found the people were thought to be dead already.
I wonder if there is any written record or account of the tombs
or underground structures that were used for torture purposes?
Danbones
Harte
Danbones
reply to post by Harte
Obviously, you can't provide a source because limestone has no such special acoustic properties.
wow BACK THAT UP PLEASE!!!
this i gotta see!!!
I'll forgive your ignorance not everyone has a good set of ears that they get paid to use
I explained why Limestone has its own virtues regarding sound in carved spaces
and at 196,000 samples per sec I ain't screwing around
Show me: Link
Like I said, not propagation through limestone beds. I want you to show me how limestone is a better reflector of sound (ala the Greek Theater) than other stones.
Harte
BRUHN Limestone has high insulating and acoustic properties that will ensure all projects are energy conscious and support government green star ratings.
right from your own link
limestone with unique acoustic properties
en.wikipedia.org...
it is believed that in the early Neolithic culture of Anatolia and the Near East the deceased were deliberately exposed in order to be excarnated by vultures and other carrion birds. (The head of the deceased was sometimes removed and preserved — possibly a sign of ancestor worship.)....
The tell includes two phases of ritual use dating back to the 10th-8th millennium BC. During the first phase (Pre-Pottery Neolithic A (PPNA)), circles of massive T-shaped stone pillars were erected. More than 200 pillars in about 20 circles are currently known through geophysical surveys. Each pillar has a height of up to 6 m (20 ft) and a weight of up to 20 tons. They are fitted into sockets that were hewn out of the bedrock.[5] In the second phase (Pre-pottery Neolithic B (PPNB)), the erected pillars are smaller. They stood in rectangular rooms. These rooms had floors of polished lime. Obviously, the site was abandoned after the PPNB-period. Younger structures date to classical times.
The function of the structures is not yet clear. The most common opinion, shared by excavator Klaus Schmidt, is that they are early neolithic sanctuaries.
Harte
Danbones
Harte
Danbones
reply to post by Harte
Obviously, you can't provide a source because limestone has no such special acoustic properties.
wow BACK THAT UP PLEASE!!!
this i gotta see!!!
I'll forgive your ignorance not everyone has a good set of ears that they get paid to use
I explained why Limestone has its own virtues regarding sound in carved spaces
and at 196,000 samples per sec I ain't screwing around
Show me: Link
Like I said, not propagation through limestone beds. I want you to show me how limestone is a better reflector of sound (ala the Greek Theater) than other stones.
Harte
BRUHN Limestone has high insulating and acoustic properties that will ensure all projects are energy conscious and support government green star ratings.
right from your own link
limestone with unique acoustic properties
Nothing there about any "unique" properties of limestone.
Do you suspect that other hard stones don't reflect sound as well as limestone? Why do you think this?
That is the question.
Harte
Stanford Physicist: Vast, Powerful Realm Between Particles Influenced by Human Consciousness
Stanford University Professor Emeritus William A. Tiller has been researching a level of physical reality hitherto undetectable with conventional measurement instruments.
He says two kinds of substances exist:
1. The electric atom/molecule level: Substances on this level can be measured with traditional instruments. We can measure them because they are electric-charge based.
2. The magnetic information waves level: Tiller explains in an introduction to his research on his website: “This new level of substance, because it appears to function in the physical vacuum (the empty space between the fundamental electric particles that make up our normal electric atoms and molecules), is currently invisible to us and to our traditional measurement instruments.”
This second type of substance has great power, and it is affected by human thought.
Bellor
I am now going to buy some mountainous land and chisel out something very much like this
I very much want to have my own sonic temple hideout where I can beam the highest quality FLAC files around, lay back and trip into nirvana. Modulate all the lighting with LEDs.
Maybe even keep a few gallons of my special tea around, brewed from only locally sourced fungi and plants.
Danbones
Harte
Danbones
Harte
Danbones
reply to post by Harte
Obviously, you can't provide a source because limestone has no such special acoustic properties.
wow BACK THAT UP PLEASE!!!
this i gotta see!!!
I'll forgive your ignorance not everyone has a good set of ears that they get paid to use
I explained why Limestone has its own virtues regarding sound in carved spaces
and at 196,000 samples per sec I ain't screwing around
Show me: Link
Like I said, not propagation through limestone beds. I want you to show me how limestone is a better reflector of sound (ala the Greek Theater) than other stones.
Harte
BRUHN Limestone has high insulating and acoustic properties that will ensure all projects are energy conscious and support government green star ratings.
right from your own link
limestone with unique acoustic properties
Nothing there about any "unique" properties of limestone.
Do you suspect that other hard stones don't reflect sound as well as limestone? Why do you think this?
That is the question.
Harte
i just quoted the selling points of a particular limestone from a company selling on one of your links Harte
its your link...its thier selling point
what is so difficult to grasp about that?
Acoustic velocity properties of Danian limestone
Department of Geology, Delta State University, Abraka, Delta State, Nigeria
In order to establish the relationship existing between the seismic velocity and petrophysical properties of limestone, ultrasonic pulse transmission technique under simulated pressure of 2.5 to 10 Mpa and at a frequency of 300 to 800 kHz was used in the determination of both compressional-wave and shear- wave velocities. The measurements were carried out for both dry and fluid saturated limestone obtained from the Curfs quarry in Limburg, Southeastern Netherlands. Compressional wave velocities values range from 2218.2 to 3280 ms-1 for dry samples and 2448 to 3730 ms-1 for fluid saturated samples. While those for shear-wave velocities values range from 2024 to 2982 ms-1 for dry samples and 1568.2 to 2024 for fluid saturated samples.These velocities values were used to constrained limestone into two lithogic units- the compacted limestone units, also know as the hardgrounds (high velocity values) and undercompacted limestone units (low velocity values). The compressional wave velocities of fluid saturated limestone samples are relatively higher than those obtained for equivalent dry ones, while the shear wave velocities of the same fluid saturated limestone samples were lower than the dry ones. The degree of diagnesis in the weakly cement limestone is responsible for the high value of both compressional- wave and shear wave velocities obtained from the acoustic velocity measurement. The velocity obtained from the time average equation is much more than the velocity obtained from the laboratory measurement of velocity for the curfs quarry.
Key words: Acoustic, compressional and shear-wave velocity, cement, fluid saturation.
www.otsf.org...
"A word spoken in this room is magnified a hundredfold and is audible throughout the entire structure. The effect upon the credulous can be imagined when the oracle spoke and the words came thundering forth through the dark and mysterious place with terrifying impressiveness." [1]....
...Descending over stone barriers into shadows, he found underground rooms opening up before him -- three stories of sculpted man-sized burrow suggesting some fantasy realm of Mother Earth. Columns and windows defining and tantalizing, spaces cut out of the stone as if it were soft cheese. With all that breathtaking visual weirdness, the odd echo of his footsteps may have gone unnoticed at first. Following the curve, he had to step down another three feet to reach the floor of a dead-end gourd-shaped room hollowed out of solid limestone: the Oracle Chamber.
On the ceiling, painted tendrils and disk patterns of red ocher spin out from the entrance, ending just above the chin-level niche in the side wall. Researcher Paul Devereux.[2] is among those who think that these could represent acoustical notation. Dark stains on the rim of the niche testify to the resting of many hands in a natural pose as one’s face is aimed toward the painted red lozenges on the wall within. Could these be target spots for achieving the best sound effects? Nearby, at the closed end of the chamber, a distinctive curved channel has been cut at the top of the concave wall. Was this designed to enhance the amplification? Is it possible that the designers of these spaces knew something that modern scientists are just rediscovering? What is this strange giant sculpture? It hasn’t changed much. It is a dark and mysterious place, even today[
To the Romans it was Melita: “honey” in the color of the golden limestone or a specialty product of the local bees. Earlier Phoenician traders called it Maleth, for its safe refuge. We don’t know what it was called six thousand years ago when prehistoric architects came up with the idea to build megalithic temples here. The resulting constructions are the oldest monuments on earth: at least a millennium ahead of Stonehenge and the Pyramids. Our present purpose is to explore the possibility that sound played a large part in the process of their evolution.
Danbones
reply to post by Harte
Acoustic velocity properties of Danian limestone
Department of Geology, Delta State University, Abraka, Delta State, Nigeria
In order to establish the relationship existing between the seismic velocity and petrophysical properties of limestone, ultrasonic pulse transmission technique under simulated pressure of 2.5 to 10 Mpa and at a frequency of 300 to 800 kHz was used in the determination of both compressional-wave and shear- wave velocities. The measurements were carried out for both dry and fluid saturated limestone obtained from the Curfs quarry in Limburg, Southeastern Netherlands. Compressional wave velocities values range from 2218.2 to 3280 ms-1 for dry samples and 2448 to 3730 ms-1 for fluid saturated samples. While those for shear-wave velocities values range from 2024 to 2982 ms-1 for dry samples and 1568.2 to 2024 for fluid saturated samples.These velocities values were used to constrained limestone into two lithogic units- the compacted limestone units, also know as the hardgrounds (high velocity values) and undercompacted limestone units (low velocity values). The compressional wave velocities of fluid saturated limestone samples are relatively higher than those obtained for equivalent dry ones, while the shear wave velocities of the same fluid saturated limestone samples were lower than the dry ones. The degree of diagnesis in the weakly cement limestone is responsible for the high value of both compressional- wave and shear wave velocities obtained from the acoustic velocity measurement. The velocity obtained from the time average equation is much more than the velocity obtained from the laboratory measurement of velocity for the curfs quarry.
Key words: Acoustic, compressional and shear-wave velocity, cement, fluid saturation.
academicjournals.org...
now, for a thing to have properties....
ACOUSTIC PROPERTIES OF LIMESTONES FROM THE NORTH-CENTRAL PACIFIC,
DEEP SEA DRILLING PROJECT LEG 621
The density-velocity relationship of the carbonates shows excellent correlation with Gardners curve for limestone. The
general Gardners curve, however, underestimates the velocities of the volcaniclastics. Laboratory porosity-velocity trends of the
carbonates are consistently 5% to 20% higher than those predicted by the time-average equation using the correct matrix velocities.
Similar crossplots for the volcaniclastics show a division into two distinct subgroups, each corresponding to a time-average
equation with a different matrix velocity, which suggests that progressive diagenetic alteration of the volcaniclastics has decreased
the matrix velocity. The VjJVs
ratios of the carbonates do not discriminate mineralogic composition. Laboratory measurements,
under effective pressure simulating in situ conditions, are 5% to 25% higher than analyses of velocity made aboard JOIDES
Resolution under atmospheric pressure.
The carbonates at Site 866 have a considerably wider range of acoustic impedance than the basalt. As a consequence, the
contact between the carbonate succession and the underlying basalt basement in many drowned Cretaceous guyots of the equatorial
Pacific Ocean may be difficult to image seismic-reflection profiles