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Recent Posts
 Hubble constant: 5 sigma separation between 67 and 73 (km/s)/Mpc
 NIST Digital Library of Mathematical Functions
 Current state of quantum computing (2019)
 On the emergence of space and time
 Few reminders about quantum teleportation
 Few stats about Turkish Economy and Society
 Wonderful Art of Angela Gonzales 19671998
 Recent discussions on dark energy
 Durability of Metals from Archaeological Objects
 Can you explain why the diameter of the observable universe is 93 billion lightyears?
 Ananda Purnima 2019
 Chuck Lorre’s Big Bang Theory Vanity Cards
 An alternative, very short, interpretation of Tao Te Ching
 Life is systaltic
 How many books in major libraries?
 Guest Post by Raymond Bates on Unity of Intelligence
 Unity of Intelligence
 Best Explanations of Renormalization in Quantum Field Theory
 J. Robert Oppenheimer’s Interview
 Quantum Computing Review Article by John Preskill
 2019 update on the location of the magnetic north pole
 Lunar Night
 CERN FCC (Future Circular Collider) Design Reports
 Michael Atiyah (19292019)
 Kandilli
 No need to be confused
 Biomass distribution
 Jagdish Mehra (19312008)
 Shebi Arus 2018 (745’th commemoration)
 Kolmogorov Complexity
 Live video feeds from ISS
 CERN LHC Long Shutdown 2 (LS2)
 Antiphoton, antineutrino
 Earth’s hum
 Microcausality
 New upper limit for electron EDM
 Atiyah lecture at 2018 Heidelberg Laureate Forum
 3 No’s of Quantum Physics
 Luigi Luca CavalliSforza
 Frank Wilczek corrects a misunderstanding
 Fractional Spin
 Chris Quigg’s Summary of the Evolution of Particle Physics
 Free version of the Feynman Lectures on Physics
 Huge amount of water in Earth’s mantle (2)
 Final reports from the Planck Cosmic Microwave Background Measurements
 The Centennial of Julian Schwinger
 Where were we?
 Fog
 Carmel
 Causal emergence, downward causation, and more…
 Few comments on the pratityasamutpada concept
 Word clouds
 Etymology of elementary particle names
 On the concept of scalar field
 Is there a particle that interacts with muons but not electrons?
 Updated links: LHC (Large Hadron Collider) operation
 Testing Google Neural Machine Translation (Turkish to English)
 Ernst Mach
 A rare good news from Middle East: SESAME opens
 China’s Noah’s Ark
 Polyakov classic: Confinement and Liberation
 1933 New Yorker articles on Einstein
 Muon g2 mystery
 Most watched physics videos (compiled by TrueSciPhi)
 Story of how Feynman tried to get rid of fields but couldn’t
 Form
 2017 Oppenheimer Lecture by John Preskill on Quantum Computing
 You know, it would be sufficient to really understand the electron
 How long does it take to reach the bottom?
 Primordial qubit network perspective
 On the photonphoton interaction
 The Legacy of the Tevatron by S.D. Holmes and V.D. Shiltsev
 In 4 space dimensions all knots can be unraveled
 Stanford
 A profile of Roger Penrose by Philip Ball
 Updates (February 2017)
 Sounds of Aya Sophia
 EDGE 2017 question and 206 responses by invited contributors
 Update on how Earth’s magnetic field is changing
 John Hagelin’s “Restructuring Physics” article from 1989
 Updates (December 2016)
 Reflections on this anniversary of Shebi Arus (2016)
 Cartoon guide to quantum computing by Scott Aaronson and Zach Weinersmith
 Qubit
 Book bunker below Bryant Park
 Unsolved problems in physics
 Nobel Prizes for Accelerator/Beam Physics
 A guide to Richard Gauthier’s Electron Models
 Knowledgebase
 Updates (November 2016)
 L.V. Lorenz and H.A. Lorentz
 Edward Witten’s 2014 Kyoto Prize commemorative lecture
 Geometrical versus Topological
 Super performance of the Large Hadron Collider in 2016
 Fourth type of neutrino has never been observed
 Guest Post by Raymond Bates on Panpsychism
 Few comments on Horgan’s bunkbashing diatribe
 Roger Penrose’s latest book: Fashion, Faith, and Fantasy
 Atiyah lecture at 2016 Heidelberg Laureate Forum
 Matthew Buckley’s particle physics tutorial articles at Boston Review
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Category Archives: geometry
In 4 space dimensions all knots can be unraveled
Nobel laureate Frank Wilczek reminds us in his tutorial article at the Quanta magazine that in 4 space dimensions all knots can be unraveled completely. He explains it as follows: “In three space dimensions, knot theory is a subtle, complicated … Continue reading
Posted in geometry
Tagged DNA, Gordian knot, Knot Theory, topoisomerases
Mobius strip representation of spin 1/2
Physics The elementary particles known as fermions (electron, muon, tau and u, d, c, s, b, t quarks ) and their antiparticles are the constituents of matter. A fermion will impart units of spin angular momentum when it interacts with … Continue reading
Posted in geometry, physics
Tagged Spin (physics), spinors, Weyl spinor
Klein’s Quartic Curve Inside Out (animation)
This is from 2005 but geometry is ageless. In week 215 John Baez discussed the Klein’s quartic curve. He mentioned the science fiction author and computer programmer Greg Egan’s work on the visualization of the Klein’s quartic curve. I admired … Continue reading
Posted in geometry
Tagged Geometry, Greg Egan, Klein quartic curve
Cubic curves
The reason I am interested in cubic curves is that they may be the simplest mathematical representations of the twisting action. In “Prometheus and Chronos” I tried to build a conceptual model of particles based on the hypothesis of intrinsic … Continue reading
Posted in computer science, geometry, mathematics, physics
Tagged cubic curves, elliptic curves
Proposals for spacetime extensions
Our understanding of the physical universe which is a shadow of the greater Cosmos consisting of spiritual, mental and physical realms is very limited. Our scientific knowledge of the physical universe is growing at an exponential pace but we have only … Continue reading
AlBiruni
image credit I feel so ashamed for not knowing much about alBiruni – the polymath who lived in the 11’th century. His name was brought to my attention by a newspaper article announcing the establishment of a new private university … Continue reading
Posted in geometry, geophysics, history, inspiration, linguistics, mathematics, philosophy, physics, Turkish
Tagged alBiruni, Indology, mathematics, physics, polymath
A rotation equals two reflections
In the picture below, the red line and the blue line are the reflection lines. Image credit The A’B’C’ triangle is a reflection of the ABC triangle in the red line. Let’s call this transformation R1 The EDF triangle is … Continue reading
Quanta Magazine (Simons Foundation)
The Quanta Magazine is a new scientific magazine published online by an editorially independent division of the Simons Foundation. You can reach the magazine at: https://www.simonsfoundation.org/quanta/ “Quanta Magazine is an online publication whose mission is to enhance public understanding of … Continue reading
Posted in geometry, mathematics, physics, science
Tagged Math, Quanta Magazine, Simons Foundation
Mathematical Spirals
The equations of the basic spirals are given in polar coordinates. The is the radius and is the angle measured from the positive horizontal axis.The and are constants. Archimedes Spiral http://mathworld.wolfram.com/ArchimedesSpiral.html Fermat Spiral http://mathworld.wolfram.com/FermatsSpiral.html Logarithmic Spiral http://mathworld.wolfram.com/LogarithmicSpiral.html Golden Spiral The … Continue reading
ThreeLeaved Rose
Simple is beautiful. This universal principle is valid in mathematics and geometry too! Equation for threeleavedrose (trifolium) in polar coordinates is r = a cos (3θ ) where “a” is a constant and the angle θ is measured from the … Continue reading
Posted in geometry, tutorial
Tagged Equation, Polar coordinate system
Phase enables relativity
Physicists are experts at assigning new meanings to the terms established in common language. I mentioned the term “dual” or “duality” before. In common language dual means two. In physics dual means equivalent. Physicists use the word “phase” in different … Continue reading
Posted in geometry, mathematics, physics, science, tutorial
Platonic Solids Revisited
I will not talk about Sacred Geometry. This is a tutorial on geometry. I guarantee that if you read this tutorial you will learn at least one fun fact that you did not know before. How many 3dimensional geometric objects … Continue reading
Posted in geometry, tutorial
Tagged Geometry, Platonic Solid, Tetrahedron
Dini’s Surface (geometry)
A surface of constant negative curvature obtained by twisting a pseudosphere is known as the Dini’s Surface. It is named after Ulisse Dini. The parametric equations are: x = a cos(u) sin(v) y = a sin(u) sin(v) z = a{cos(v) + … Continue reading
Posted in geometry
Tagged Dini's Surface, Geometry