You saw 'it' whiz past you. Then came, innumerably, more. They then went away. But the murmur stayed, the lilt, the Ryle. Hear the drumming far away? It is the field they say (#TFTS). &, you sway...

#TFTS (The Field They Say) --- SynTalk Album

SynTalk thinks about Vacuum and asks why is there something rather than nothing? Is empty space really empty? Does vacuum exist in the natural universe or is it merely a theoretical abstract conception? Is absolute vacuum possible? The concepts are derived off / from Hindu thought (eternal recurrence), Bible (genesis, void), Aristotle, Newton, Einstein, Copenhagen interpretation, Sommerfeld (fine structure constant), Maxwell, Heidegger (PEQ), Casimir (pair production), Biermann (solar wind) and Parker (solar wind model), among others. We marvel at the beauty of nature via CMBR, pole wandering (did dinosaurs die because of this?), magnetic reconnection, cosmological constant, dark matter / energy, dipoles, plasma (a la fire?), and absolute zero. How virtual particles come into ‘being’. What is happening in upper atmosphere (~70,000 kms above earth)? What does an ‘agitated’ sun do to earth’s atmosphere? Whether the laws of causation break down with quantum mechanics and sub-micron distance scales. How do neutrinos / muons reach us via empty space? Has Quantum Field Theory (QFT) left us in a state of limbo, and do we need to reformulate our conception of God? How empty space is bubbling. How would a ride to the sun be? The SynTalkrs are: Prof. Sunil Mukhi (particle physics, IISER, Pune), Prof. Kuruvilla Pandikattu (philosophy & theology, Jnana-Deep Vidyapeeth (JDV), Pune), & Prof. R.V. Reddy (plasma physics, Indian Institute of Geomagnetism, Navi Mumbai)

#TVAABP (The Vacuum As A Bubbling Place) --- SynTalk

SynTalk thinks about the dynamic nature & origins (since the big bang) of  fundamental & emergent forces in the universe. Was there only one force at the time of big bang? How did human beings first recognize & understand both the forces of nature (shamanism, magic, storms, lightning) and the forces more in their control (combat, weapons, hunting, push & pull)? The concepts are derived off / from Aristotle, Galileo, Laplace, Newton, Halley, Oersted, Faraday, Maxwell, Mach, Bohr, Planck, Einstein, Schrodinger, Heisenberg, Higgs, Max Jammer, & Karplus / Levitt / Warshel (2013 Chemistry Nobel Prize winners), among others. How is the world held together by the various forces? What exactly is a force field? Can there be force without matter (Yes)? Does matter create its field, or can a field be its own source? How to think of Maxwell’s equations in ‘free space’, and why we need matter (as sources for (say) microphones & radio)? How do forces act at a distance? Why do we try to create early universe conditions in large colliders, and study strong & weak forces? How did the forces separate (gravitation, electromagnetism, weak & strong forces, in that order) as the universe cooled down? Why don’t bodies simply move in a straight line, and links with the concept of ‘natural motion’? Is it (even) possible to know why forces exist? Is Big Bang the new ‘prima mobilia’, and how much more do we conceptually know about forces now? How do strongly interacting  (uncertain) electrons / atoms get confined in a classical body, and links with concepts of multiscaling (QM/MM; Quantum Mechanics/Molecular Mechanics) and the mesoscopic world? Why an electrical circuit is difficult to understand in terms of electromagnetic field theory. How forces bind parts together and why / how a different whole sometimes emerges? How the degrees of freedom get frozen as the number of bodies increase. Why did Bohr’s premise of simply quantizing angular momentum did not work for many-electron atoms (beyond hydrogen-like atoms)? Link of the grey zone (‘interface region’) between quantum mechanics & classical mechanics with drugs, proteins, buildings, brain, cricket ball, polymers, spark plug, steering wheel, effective theory, & wave-particle duality. How does a magnet defeat the earth and pull a piece of iron, and its links with gauge theory (with all three forces, except gravity) and the possibility of  gravity as an entropic or emergent force? Are market, political, or life forces similar entropic forces? Why is gravity difficult to unify with the other forces? Has ‘force’ replaced ‘energy’ since mid 19th century (after the energy-ists)? Are a different set of forces likely to govern dark matter and dark energy? Is force just a defined concept and not purely fundamental? The SynTalkrs are: Prof. S. D. Agashe (electrical engineering, history & philosophy of science, IITB, Mumbai), Dr. Sourav Pal (quantum chemistry, NCL, Pune), Prof. Sreerup Raychaudhuri (particle physics, TIFR, Mumbai).

#TFOFA (The Fields Of Forces Around) --- SynTalk

SynTalk thinks about the unidirectional nature of time and wonders if time is a separate ‘category’ at all. We dip into cosmology, computer science, neuroscience, quantum physics, & philosophy. We wonder whether time is essentially a (background) variable. Is time nature’s way of preventing everything from happening at the same time (a la Wheeler)? The concepts are derived off / from Newton, Fred Hoyle, Maxwell, Dirac, Planck, Godel, Bohr, Einstein, H G Wells, Wheeler, Feynman, Prigogine, Landauer, Roy Kerr, Everett, Novikov, & Zeldovich, among others. How has the notion of time changed with digital watches? What is ‘logical time’, & the importance of multiple systems synchronizing with each other? What would happen if we hit an electron with a hammer? Do we get ‘it from bit’, and what is the possible link of time with (quantized) information? Can neurons be thought of as being probabilistically synchronized oscillators? We also discuss the concept of Planck’s time as the fundamental unit, & the resultant notion of whether time is discrete or continuous. What is the link between causality and time? We discuss the fascinating links of time with thermodynamics, entropy, ‘action at a distance’, & closed / open systems. What would happen, surprisingly, if a hot star were to be connected with a cold star via a conducting wire? The nature of neurological time, and its links with octopuses, crabs, speeding cars, a ‘cache of situations’, & reflex actions. How do (memory) space & time tradeoffs impact computer algorithms? Can time be lost? How ‘branching time’ creates possible worlds that are not known a priori? Is time travel possible (via a worm holes), and does it need a conception different from ‘state-based’ time? Do animals ‘have’ time? The SynTalkrs are: Prof. Jayant V. Narlikar (astrophysics, IUCAA, Pune), Prof. Krithi Ramamritham (computer science, IITB, Mumbai), & Prof. Sisir Roy (theoretical physics, NIAS, IISc, Bangalore).

#TAOT (The Arrows Of Time) --- SynTalk

SynTalk thinks about the interrelationships between wholes and parts in natural and conceptual systems, and wonders whether the part is inferred from the whole. Does a part (somehow) imply or expect the whole? The concepts are derived off / from Abhinavagupta, Newton, Kepler, Boltzmann, Boyle, Saussure, Turing, Manfred Eigen, P. W. Anderson, Chomsky, & Morris Halle, among others. In interactions between words, fundamental particles, molecules, cells, & phonemes, why are most combinations void? How do a finite number of parts create a dizzying array of wholes, and links with concepts such as historical contingency, surplus, entropy, sequencing, emergentism, & auto-catalysis? Why are transitions in biological, physical, ecological, social, and linguistic systems so tentative and statistical? Has the physics of the material world achieved a special kind of climax in the biological unit of life, & how the cell is not simply a bagful of chemicals. How the cell is both a part and a whole, & the context of cell division. Which is the most fundamental living part? How entropy comes about ‘only’ in systems of ‘many’ interacting particles. At what point can we start defining concepts such as pressure, volume, & temperature? Why certain molecular complexes self-emerge into functioning self sustaining evolving systems? Why literature does not simply describe the world, and how the non-existent also often make sense? In our daily linguistic behaviour, do we (fundamentally) use phonemes or words or sentences? How a word is a meaningful sequence of phonemes, and the similarities with gene sequencing; the difference between: ‘John killed the tiger’, & ‘the tiger killed John’. The sound patterns of language, & how any sound cannot come after one sound. Can one syllable be a whole in itself (bijakshara)? How a large chunk of the genome performs mundane functions, & discrimination results only from a handful of genes. Are carbon atoms in graphite and diamond identical in every single way, or do the atoms become something different? The links between rabbit’s horn, bureaucracy, multiverses, Lego toys, universal physical constants, Mesopotamian civilization, zebra, sky flower, existence, and time. The implications of an animal (whole) repeatedly developing into an animal (whole). How non linearity (in both deterministic and stochastic systems) is crucial for any emergent phenomena. Is the long term future of existence non local (a la ‘the ant colony as an organism’) and (potentially) altruistic? The intriguing prospect of new emergence as a result of the unprecedented ongoing meta-interactions, where parts (human beings) increasingly understand the emergent design of the whole? The SynTalkrs are: Dr. Rajnish K. Mishra (linguistics, philosophy, JNU, Delhi), Prof. B.J. Rao (biology, TIFR, Mumbai), & Prof. Sitabhra Sinha (physics, IMSc, Chennai).

#TWAP (The Whole And Parts) --- SynTalk

What comes first - matter or space or time? What is the structure of space? Why did Paul Cezanne go 'flat'? How did Picasso turn the artistic conception of space on its head with cubism? Is there a link between colour and space? What is it like to be in Matisse's The Red Studio? What happens when you walk into a room that you have not been in before? Are there specific neurons in your brain for every space that you have ever been to? How do place cells within the hippocampus represent the physical space as a cognitive map? Is space the same everywhere in the universe? Is it possible to represent empty space? How does an artist create the pictorial space on a 2-dimensional canvas? Is the perception of space always relative to matter (& objects)? Is episodic memory anchored in space (the 'where')? What is space like at sub atomic scales? Does nature really have more than 3 dimensions? Has theoretical physics completely missed incorporating gravity of all the matter in the universe? Is matter essentially primary, time derived, and space essentially relational? SynTalk thinks about these & more questions, about the manifested space around and within us, using concepts from physics (Prof. C.S. Unnikrishnan, TIFR, Mumbai), art (Atul Dodiya, Mumbai), and neuroscience (Dr. Sachin Deshmukh, IISc, Bangalore). 

Listen in...

#TROS (The Representation Of Space) --- SynTalk

f(q) = Is soil a definitive sign of life? (#TCAFG)

SynTalk is a freewheeling interdisciplinary talk show with a philosophical approach to understanding the world from a long term perspective.