The Fundamentals of Consciousness?

Ian Waldie/Getty Images

Science also lacks even a back-of-the-envelop concept explaining the emergence of consciousness from the behavior of mere matter. We have an elaborate understanding of the ways in which experience depends on neurobiology. But how consciousness arises out of the action of neurons, or how low-level chemical or atomic processes might explain why we are conscious — we haven't a clue.

We aren't even really sure what questions we should be asking.See: Are The Mind And Life Natural? 13.7 and by Alva Noë

I open with reference too, Is There A Place For The Mind In Physics? Part I as it sets up the question that looks as if it will lead to further discussion. Adam Frank will reveal more about, of course realizing this is Part 1, one assumes there should be more.

The basis of discussion seems to center around Thomas Nagel's work so it seems there is a foundational treatment here that is used to bounce off of,  in order to express Adam Frank's position(The truth is, while I deeply suspect he is wrong, I do find his perspective bracing.)He also writes, "Now, as 13.7 readers know, I am no fan of reductionism. In its grandest claims, reductionism tends to be more an affirmation of a faith then a tenable position about ontology (what exists in the world)." 

Okay, so the idea is expressed here then that what I had linked previous of Quantum Consciousness (Stuart Hameroff) and Stuart Kauffman on Beyond Reductionism some question for me about  how such measure could  have existed if the mind did not attempt to define it self as a "measure of something?" Alva sets the bar high by writing, "We aren't even really sure what questions we should be asking."

So there seems to be this group thinking over at 13.7 since Alvae's work on  October 12, 2012 that raises  the subject title presented by Adam Frank. It shows such connections in reference to Thomas Nagel's work. I forgot to include Stuart Kauffman before that in terms of emergent processes, as well as Tania Lombrozo , so you sort of get what I mean by as a "Group Think."

So to begin,  with out argument, consciousness "just is,"  or how else can such awareness exist for any of us of such a discussion? IN that sense the notion of any reductionist versions are not necessary because it would  not need to define parameters around anything other then, "are we aware?" Alva expresses this very nicely by  saying, "But how consciousness arises out of the action of neurons, or how low-level chemical or atomic processes might explain why we are conscious — we haven't a clue." 

So by asking us to impose a vision of a blue monkey, does Adam rank reveal some fundamentalism inference to what exists as a consciousness? I hope to explore more of this as we go along. Can we gain awareness without understanding that  an Observer exists?

Alvae explains it nicely as he askes us to recognize.

 We think we can't explain life, but only because we insist on adhering to a conception of life as vaguely spooky, some sort of vital spirit. And likewise, we think we can't explain consciousness, but again this is because we cling to a conception of consciousness as, well, somehow spiritual, and precisely because we insist on thinking of it as something that floats free of its physical substrates ("a ghost in the machine"), as something essentially interior and private. See: Are The Mind And Life Natural? 13.7 and by Alva Noë

 In a sense it is a call out to scientists to get beyond themselves as  Adam Frank is doing, as well as a call out to others to start to deal with the question with what exists "as is." Experimentally as a physicist I am not sure how a scientist can not be a reductionist. Adam Frank writes,"What if the Mind was something as real as Space and Time and Higgs Bosons?" . It is experimentally necessary to be specific and burdened with proof even if in speculation raised as a question.?

See Also:

• Embodied Cognition and iCub

Geometry Expressed, Hidden In Ancient Design

If the late character of our sources may incite us to doubt the authenticity of this tradition, there remains that, in its spirit, it is in no way out of character, as can be seen by reading or rereading what Plato says about the sciences fit for the formation of philosophers in book VII of the Republic, and especially about geometry at Republic, VII, 526c8-527c11. We should only keep in mind that, for Plato, geometry, as well as all other mathematical sciences, is not an end in itself, but only a prerequisite meant to test and develop the power of abstraction in the student, that is, his ability to go beyond the level of sensible experience which keeps us within the "visible" realm, that of the material world, all the way to the pure intelligible. And geometry, as can be seen through the experiment with the slave boy in the Meno (Meno, 80d1-86d2), can also make us discover the existence of truths (that of a theorem of geometry such as, in the case of the Meno, the one about doubling a square) that may be said to be "transcendant" in that they don't depend upon what we may think about them, but have to be accepted by any reasonable being, which should lead us into wondering whether such transcendant truths might not exist as well in other areas, such as ethics and matters relating to men's ultimate happiness, whether we may be able to "demonstrate" them or not.See: Frequently Asked Questions about Plato by Bernard SUZANNE

Academy was a suburb of Athens, named after the hero Academos or Ecademos. The site was continuously inhabited from the prehistoric period until the 6th century A.D. During the 6th century B.C., one of the three famous Gymnasiums of Athens was founded here. Moreover, it is recorded that Hippias, the son of Peisistratos, built a circuit wall, and Cimon planted the area with trees which were destroyed by Sulla in 86 B.C. In 387 B.C. Plato founded his philosophical school, which became very famous due to the Neoplatonists, and remained in use until A.D. 526, when it was finally closed down by emperor Justinian.

I relay some thoughts I have had with regard to an emergent process.  I think it incorporates a view I have about the geometries hidden in nature that are designed toward expression of some of the historical understanding of this need to apply "fundamentals."  These constructs are in  ephemeral states of existence as if expressed as an idea.  As idea, these become matter orientated views as "a method of approach."

 Learning to identify the schematic usage of geometrical design as an inherent basis of expression, was to understand that intent had this basic design as a malleable feature in the nature of probabilistic outcomes of experience?

In order for us to understand this "world view" as applied to the nature of the reality, it is assumed such fundamentals(all basic models) reveal some of the ways in which we will adopt the reality as expressed?  We are active participants regardless aren't we,  which might mean, there is still some room with which to form, "a more comprehensive view of the type of fundamentals" necessary for such a world view?

IN that sense, the basis of geometrical exploration, as a set of possible outcomes, was to see schematically, that such usage was necessary in understanding what Einstein was able to reveal once adopting, Grossmann's realizations.

By pointing toward Riemann's realization, and this underlying framework of experience as a possible outcome of a universal expression, showed the way to this projector type of geometry, as a dynamical view of this "gravitation inclusion," as a process toward forming that intent.

So of course historical analysis became an important function for me so as to look at the way in which such a historical school,  might have used this method in order to attain the desired student. One who would  face the continuing  search for  such fundamentals. Of course nothing said this is "set in stone." I am laughing right now.  I will use such a structure so as to show you this method.

This was revealed to me in the statement of Hameroff and Penrose, as a process in the cyclic expression of the universe. Using, geometrical design. Looking at emergence as geometrical underlying process of the universe in expression. This was to see an underlying format of constructive phases of experience.

So, not by the idea that such singularity as the nature of such expression, but that by such intent, is an outcome toward the nature of the geometry as dynamical views of as, K minus or plus, as metric aversions of the dynamical process of out comes as the universe in such expression?

While I cannot say for certain, these are the tendencies of Plato, in my thoughts it was for him, to seek and define reality in pursuance of foundation building blocks. Although too, it may not  be true to today's world, it was sufficient then to describe reality as it contained the "ancientness of belief" about an astronomical processes that existed in nature.

While again it may not have been the best way, it reveals some deeper thinking about alchemist methods as they were adopted and transformed. This  in Greek culture of the philosophers arose from one generation to the next.  It then became a method by which one could internalize transformation.

Such model building was to build the ideological,  by the discussing of these analogical methods to purify oneself of the grossness of nature embedded within the material world?

 How much finer such methods then  but to distillate the process for what begins as to it's beginning,  exists as a some, " Prima Materia."  This then became matter defined as the grossness of our experiences,  could lead from any asymmetrical notion of this symmetry in the beginning?

Logic is the art of thinking; grammar, the art of inventing symbols and combining them to express thought; and rhetoric, the art of communicating thought from one mind to another, the adaptation of language to circumstance.Sister Miriam Joseph

The quadrivium comprised the four subjects, or arts, taught in medieval universities after the trivium. The word is Latin, meaning "the four ways" or "the four roads". Together, the trivium and the quadrivium comprised the seven liberal arts.[1] The quadrivium consisted of arithmetic, geometry, music, and astronomy. These followed the preparatory work of the trivium made up of grammar, logic (or dialectic, as it was called at the times), and rhetoric. In turn, the quadrivium was considered preparatory work for the serious study of philosophy and theology.

So while it may be fleeting that such a design may indicate the unification of the Trivium with the Quadrivium, such a completion was inherently significant not just for the presence of adaptation in any school.

Intuitive knowledge is free from partiality or dualism; it has overcome the extremes of stressing subject or object. It is the vision of a world-synthesis, the experience of cosmic consciousness where the Infinite is realised not only conceptually but actually. (p233) Lama Anagarika Govinda, Creative Meditation and Multidimensional Consciousness, 1977

In my thoughts such a design was necessary as  to impose a "model design" that indicated that such adaption in Plato's school amounted to something so solid? A method.

Such integration was necessary so as to realize that such a model built was to survive not only the objective world as a solid,  but was also to realize that such unification could exist within ourselves. Bringing together this liberal arts as a measure of success was to delineate each subjective facet of experience so as to realize that one could transcend the material world, by such realizations which may have took one back to the beginning.

While in this sense artistic expressionism of Raphael's picture in the heading of this site, such a realization was to signify that such a pursuat was necessary and represented the coming together of Aristotle and Plato in the very centre of that world. It required us to become closely associated to the "beginning point" of what was allowed in terms of what is self evident as an inductive deductive process of unfolding.

This was our internal teacher/student dialogue that becomes necessary in order to proceed with dealing with the  truths as they come to us in our realizations.

It was the uniqueness of the individual to which although each truth revealed it's successes with regard to that individual's development, in the larger scheme of things,  it asked us to proceed with a method so as to deal with the science of life? To be inquisitive, but grounded in this teacher/student relationship so as to move forward and experience the world.

See Also:

• Music in Plato's Academy

Materialism/Physicalism

In philosophy, the theory of materialism holds that the only thing that exists is matter or energy; that all things are composed of material and all phenomena (including consciousness) are the result of material interactions. In other words, matter is the only substance, and reality is identical with the actually occurring states of energy and matter.

To many philosophers, 'materialism' is synonymous with 'physicalism'. However, materialists have historically held that everything is made of matter, but physics has shown that gravity, for example, is not made of matter in the traditional sense of "'an inert, senseless substance, in which extension, figure, and motion do actually subsist'… So it is tempting to use 'physicalism' to distance oneself from what seems a historically important but no longer scientifically relevant thesis of materialism, and related to this, to emphasize a connection to physics and the physical sciences."^[1] Therefore much of the generally philosophical discussion below on materialism may be relevant to physicalism.

Also related to materialism are the ideas of methodological naturalism (i.e. "let's at least do science as though physicalism is true") and metaphysical naturalism (i.e. "the physical world is all that exists").

Contrasting philosophies include idealism, other forms of monism, dualism, and pluralism.

Defining matter

The nature and definition of matter - like other key concepts in science and philosophy - have occasioned much debate.^[12] Is there a single kind of matter (hyle) which everything is made of, or multiple kinds? Is matter a continuous substance capable of expressing multiple forms (hylomorphism),^[13] or a number of discrete, unchanging constituents (atomism)?^[14] Does it have intrinsic properties (substance theory),^[15][16] or is it lacking them (prima materia)?

One challenge to the traditional concept of matter as tangible "stuff" came with the rise of field physics in the 19th century. Relativity shows that matter and energy (including the spatially distributed energy of fields) are interchangeable. This enables the ontological view that energy is prima materia and matter is one of its forms. On the other hand, the Standard Model of Particle physics uses quantum field theory to describe all interactions. On this view it could be said that fields are prima materia and the energy is a property of the field.

See Also:

• Point Being...It's a Material World?

Charging Stations

Public charging stations in San Francisco 2009

Some of these special charging stations provide one or a range of heavy duty or special connectors and/or charging without a physical connection using parking places equipped with inductive charging mats.

Okay you see those extension cords extending into charging units? Well it will not be need with the current technology that is being developed in terms of wireless energy transference. I think most who follow this blog will know why. Perhaps while oscillator that exist in car and oscillators that exists in parking spot  are embedded in pavement, will increase the calculated range if this becomes common? At traffic light along  the corridor, or perhaps in the traffic light itself?

Inductive Charging. The primary coil in the charger induces a current in the secondary coil in the device being charged.

Greater distances between sender and receiver coils can be achieved when the inductive charging system uses resonant inductive coupling.

But how will cities recoup the parking spot meter time and adjust for the cost of electricity? Why not throw in your cells phone too since it too can have a oscillator whose charge will be rejuvenated in the electrical presence of the car?  Oh,  you see how Tesla would have been happy, and it really has nothing to do with communism, but more of what should have already been enviable to people to create a much more productive society with out paying a mortgage for electricity.

Basic transmitter and receiver circuits, Rs and Rr are the resistances and losses in the associated capacitors and inductors. Ls and Lr are coupled by small coupling coefficient, usually below 0.2

Resonant inductive coupling or electrodynamic induction is the near field wireless transmission of electrical energy between two coils that are tuned to resonate at the same frequency. The equipment to do this is sometimes called a resonant or resonance transformer. While many transformers employ resonance, this type has a high Q and is often air cored to avoid 'iron' losses. The two coils may exist as a single piece of equipment or comprise two separate pieces of equipment.

Resonant transfer works by making a coil ring with an oscillating current. This generates an oscillating magnetic field. Because the coil is highly resonant, any energy placed in the coil dies away relatively slowly over very many cycles; but if a second coil is brought near it, the coil can pick up most of the energy before it is lost, even if it is some distance away. The fields used are predominately non-radiative, near field (sometimes called evanescent waves), as all hardware is kept well within the 1/4 wavelength distance they radiate little energy from the transmitter to infinity.

One of the applications of the resonant transformer is for the CCFL inverter. Another application of the resonant transformer is to couple between stages of a superheterodyne receiver, where the selectivity of the receiver is provided by tuned transformers in the intermediate-frequency amplifiers.^[1] Resonant transformers such as the Tesla coil can generate very high voltages with or without arcing, and are able to provide much higher current than electrostatic high-voltage generation machines such as the Van de Graaff generator.^[2] Resonant energy transfer is the operating principle behind proposed short range wireless electricity systems such as WiTricity and systems that have already been deployed, such as passive RFID tags and contactless smart cards.

See once you know this and understand what has happen with our current governments in terms of capitalized systems of cost then you see where the 180 degree turn could have helped all countries in the world benefit from not only communications but a resurgence of the adaptations of technologies that would provide still manufacturing base in order to produce product and stimulate economies? The world may have seemed a different place then it is today.

Quantum Consciousness (Stuart Hameroff)

 

See Also:

 

See: 

• Nikola Tesla - Wardenclyffe Tower

The Observer

Thomas Kuhn

However, the incommensurability thesis is not Kuhn's only positive philosophical thesis. Kuhn himself tells us that “The paradigm as shared example is the central element of what I now take to be the most novel and least understood aspect of [The Structure of Scientific Revolutions]” (1970a, 187). Nonetheless, Kuhn failed to develop the paradigm concept in his later work beyond an early application of its semantic aspects to the explanation of incommensurability. The explanation of scientific development in terms of paradigms was not only novel but radical too, insofar as it gives a naturalistic explanation of belief-change. Naturalism was not in the early 1960s the familiar part of philosophical landscape that it has subsequently become. Kuhn's explanation contrasted with explanations in terms of rules of method (or confirmation, falsification etc.) that most philosophers of science took to be constitutive of rationality. Furthermore, the relevant disciplines (psychology, cognitive science, artificial intelligence) were either insufficiently progressed to support Kuhn's contentions concerning paradigms, or were antithetical to them (in the case of classical AI). Now that naturalism has become an accepted component of philosophy, there has recently been interest in reassessing Kuhn's work in the light of developments in the relevant sciences, many of which provide corroboration for Kuhn's claim that science is driven by relations of perceived similarity and analogy to existing problems and their solutions (Nickles 2003b, Nersessian 2003). It may yet be that a characteristically Kuhnian thesis will play a prominent part in our understanding of science.

Anomaly and the Emergence of Scientific Discoveries Kuhn now moves past his initial topic of paradigm to scientific discovery saying that in order for there to be a discovery, an anomaly must be detected within the field of study. He discusses several different studies and points out the anomaly that invoked the scientific discovery. Later in the chapter he begins to discuss how the anomaly can be incorporated into the discovery to satisfy the scientific community.

There are three different characteristics of all discoveries from which new sorts of phenomena emerge. These three characteristics are proven through an experiment dealing with a deck of cards. The deck consisted of anomalous cards (e.g. the red six of spades shown on the previous page) mixed in with regular cards. These cards were held up in front of students who were asked to call out the card they saw, and in most cases the anomaly was not detected.(link now dead)

See if you recognize the validity of what I am saying, then you would have to know something a little bit more about the person who uses the name of Plato. Is to understand, that I was already given an anomalous event within my own life. It rocked the very foundation in face of all that science has given me.

 The Observer. I never gave it much thought other then to see that while it is very subjective in the terms that I  may explore consciousness.  There is a obvious meaning of the term in the sciences that  needed to be explained. I do understand that context in terms of measure,  but I understand as well,  that any subjective state asks how it is that in the chaos of these subjective symbolisms,  how is one to be able to make sense of the language used? It is obviously not the language of mathematics and physics.

In quantum mechanics, "observation" is synonymous with quantum measurement and "observer" with a measurement apparatus and observable with what can be measured. Thus the quantum mechanical observer does not necessarily present or solve any problems over and above the (admittedly difficult) issue of measurement in quantum mechanics. The quantum mechanical observer is also intimately tied to the issue of observer effect.

A number of interpretations of quantum mechanics, notably "consciousness causes collapse", give the observer a special role, or place constraints on who or what can be an observer. For instance, Fritjof Capra writes:

"The crucial feature of atomic physics is that the human observer is not only necessary to observe the properties of an object, but is necessary even to define these properties. ... This can be illustrated with the simple case of a subatomic particle. When observing such a particle, one may choose to measure — among other quantities — the particle's position and its momentum" ^[1]

However, other authorities downplay any special role of human observers

"Of course the introduction of the observer must not be misunderstood to imply that some kind of subjective features are to be brought into the description of nature. The observer has, rather, only the function of registering decisions, i.e., processes in space and time, and it does not matter whether the observer is an apparatus or a human being; but the registration, i.e., the transition from the "possible" to the "actual," is absolutely necessary here and cannot be omitted from the interpretation of quantum theory."^[2]

Critics of the special role of the observer also point out that observers can themselves be observed, leading to paradoxes such as that of Wigner's friend; and that it is not clear how much consciousness is required ("Was the wave function waiting to jump for thousands of millions of years until a single-celled living creature appeared? Or did it have to wait a little longer for some highly qualified measurer - with a PhD?"^[3]).

In science, the term observer effect refers to changes that the act of observation will make on a phenomenon being observed. This is often the result of instruments that, by necessity, alter the state of what they measure in some manner. A commonplace example is checking the pressure in an automobile tire; this is difficult to do without letting out some of the air, thus changing the pressure. This effect can be observed in many domains of physics.

The observer effect on a physical process can often be reduced to insignificance by using better instruments or observation techniques. However in quantum mechanics, which deals with very small objects, it is not possible to observe a system without changing the system, so the observer must be considered part of the system being observed.

"Genius is one percent inspiration, ninety-nine percent perspiration." - Thomas Alva Edison, Harper's Monthly (September 1932)

Thomas Edison's first successful light bulb model, used in public demonstration at Menlo Park, December 1879

See Also:

• Quantum physics doesn't depend on definitions of observers

Stuart Kauffman on Beyond Reductionism

"It is very good that Stu Kauffman and Lee are making this serious attempt to save a notion of time, since I think the issue of timelessness is central to the unification of general relativity with quantum mechanics. The notion of time capsules is still certainly only a conjecture. However, as Lee admits, it has proven very hard to show that the idea is definitely wrong. Moreover, the history of physics has shown that it is often worth taking disconcerting ideas seriously, and I think timelessness is such a one. At the moment, I do not find Lee and Stu's arguments for time threaten my position too strongly."- Julian Barbour

 

Is it more astonishing that a God created all that exists in six days, or that the natural processes of the creative universe have yielded galaxies, chemistry, life, agency, meaning, value, consciousness, culture without a Creator. In my mind and heart, the overwhelming answer is that the truth as best we know it, that all arose with no Creator agent, all on its wondrous own, is so awesome and stunning that it is God enough for me and I hope much of humankind.

BEYOND REDUCTIONISM: REINVENTING THE SACRED

Stuart Alan Kauffman (28 September 1939) is an US American theoretical biologist and complex systems researcher concerning the origin of life on Earth. He is best known for arguing that the complexity of biological systems and organisms might result as much from self-organization and far-from-equilibrium dynamics as from Darwinian natural selection, as well as for proposing the first models of Boolean networks.

Kauffman presently holds a joint appointment at the University of Calgary in Biological Sciences and in Physics and Astronomy, and is an Adjunct Professor in the Department of Philosophy. He is also an iCORE (Informatics Research Circle of Excellence) [1] chair and the director of the Institute for Biocomplexity and Informatics.

BEYOND REDUCTIONISM

See:Reinventing the Sacred: A New View of Science, Reason, and Religion (Hardcover)

See Also:

•  Cosmic Evolution and the Powers of Ten

• Beyond Einstein and Schrodinger? The Quantum Mechanics of Closed Quantum Systems

• Soft Science Envy  by Bee of Backreaction

First Room Temperature Superconductor

Superconductors.ORG herein reports the 28C room-temperature superconductor discovered in December 2011 has been successfully reformulated to produce a critical transition temperature (Tc) above 30 Celsius (86F, 303K). This new material has a nominal formula of Tl₅Pb₂Ba₂Mg_2.5Cu_8.5O₁₇₊ and a Tc near 30.5C. See Also: New Support for Phonon Mediation in High Temperature Superconductors

Superconductivity is a phenomenon of exactly zero electrical resistance and expulsion of magnetic fields occurring in certain materials when cooled below a characteristic critical temperature. It was discovered by Dutch physicist Heike Kamerlingh Onnes on April 8, 1911 in Leiden. Like ferromagnetism and atomic spectral lines, superconductivity is a quantum mechanical phenomenon. It is characterized by the Meissner effect, the complete ejection of magnetic field lines from the interior of the superconductor as it transitions into the superconducting state. The occurrence of the Meissner effect indicates that superconductivity cannot be understood simply as the idealization of perfect conductivity in classical physics.

Visible Earth

http://visibleearth.nasa.gov/ (Click on Image for Larger Viewing)

See Also:

• Blue Marble Navigator
• Spaceship Earth: Who Is In Control?
•  http://www.overviewinstitute.org/
•  http://www.overviewthemovie.com/

Experiments at Cern

A candidate event in the search for the Higgs boson, showing two electrons and two muons (Image: CMS/CERN)

• ACE
• AEGIS
• ALICE
• ALPHA
• AMS
• ASACUSA
• ATLAS
• ATRAP
• CAST
• CLOUD
• CMS
• COMPASS
• DIRAC
• ISOLDE
• LHCb
• LHCf
• MoEDAL
• NA61/SHINE
• NA62
• nTOF
• OSQAR
• ">TOTEM

Experiments in the Past

• ALEPH
• DELPHI
• L3
• OPAL

ScienceCasts: Dark Lightning

 

Click on Image for Larger Viewing

See Also:

• NASA's Fermi Catches Thunderstorms Hurling Antimatter into Space

Weber Bars

The following detectors participate into the IGEC. Click on a name to connect to the experiment web site.
In the picture below the detectors locations on earth are represented. It happens that there is a great circle passing near each site (red line on the picture below) This allows for parallel orientation of the bars.

See: How many Possibilities Exist in the Now? 

Resonant Gravitational Wave Detectors

I do need to clarify my mistake on the spelling of Joseph Weber and the double bb I had given his last name.

Weber Bar

A simple device to detect the expected wave motion is called a Weber bar – a large, solid bar of metal isolated from outside vibrations. This type of instrument was the first type of gravitational-wave detector. Strains in space due to an incident gravitational wave excite the bar's resonant frequency and could thus be amplified to detectable levels. Conceivably, a nearby supernova might be strong enough to be seen without resonant amplification. Modern forms of the Weber bar are still operated, cryogenically cooled, with superconducting quantum interference devices to detect vibration (see for example, ALLEGRO). Weber bars are not sensitive enough to detect anything but extremely powerful gravitational waves.^[1]

The MiniGRAIL detector is a cryogenic 68 cm diameter spherical gravitational wave antenna made of CuAl(6%) alloy with a mass of 1400 Kg, a resonance frequency of 2.9 kHz and a bandwidth around 230 Hz, possibly higher. The quantum-limited strain sensitivity dL/L would be ~4x10^-21.

MiniGRAIL is a spherical gravitational-wave antenna using this principle. It is based at Leiden University, consisting of an exactingly machined 1150 kg sphere cryogenically cooled to 20 mK.^[2] The spherical configuration allows for equal sensitivity in all directions, and is somewhat experimentally simpler than larger linear devices requiring high vacuum. Events are detected by measuring deformation of the detector sphere. MiniGRAIL is highly sensitive in the 2–4 kHz range, suitable for detecting gravitational waves from rotating neutron star instabilities or small black hole mergers.^[3]

AURIGA is an ultracryogenic resonant bar gravitational wave detector based at INFN in Italy. It is based on a cylindrical bar detector. The AURIGA and LIGO teams have collaborated in joint observations.^[4]

1. Side view of the AURIGA suspension for run2. The columns and the bar are clearly visible. Also the liquid Helium vessel and the thermal shields, which come unchanged from run1.

List of Resonant Detectors

NAUTILUS (Rome, Italy)

	ALLEGRO (Louisiana State University)
	AURIGA (Padova, Italy)
	EXPLORER (Geneva, Switzerland)
	Mario Schenberg (Gravitational Wave Detector)
	MiniGRAIL (Leiden, The Netherlands)
	NIOBE (Perth, Australia)

 

See Also:

• Einstein@Home all-sky search for periodic gravitational waves in LIGO S5 data
• Gravitational bar detectors set limits to Planck-scale physics - Really?

AURIGA RUN2- The Bar and Resonances

1. Side view of the AURIGA suspension for run2. The columns and the bar are clearly visible. Also the liquid Helium vessel and the thermal shields, which come unchanged from run1.

See: The AURIGA photo album: RUN2

The Transducer Test Facility

See Also:

• Gravitational Wave Detectors are Best Described as "Sounds."  

• Gravity Wave Spectrum 

 

Radar echos from Titan's surface

This recording was produced by converting into audible sounds some of the radar echoes received by Huygens during the last few kilometres of its descent onto Titan. As the probe approaches the ground, both the pitch and intensity increase. Scientists will use intensity of the echoes to speculate about the nature of the surface.