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 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
 Epistemic uncertainty
 CASW Showcase interview with Natalie Wolchover
 bioRxiv: the preprint server for Biology
 Can astronauts see the stars by the naked eye in space?
 LMFDB: unifying the building blocks of mathematics
 Tanedo on the 17 MeV Anomaly in Beryllium Nuclear Decays
 A lot is happening
 Large Hadron Collider (LHC) is breaking performance records
 FERMILAB History and Archives Project
 Helen Thom Edwards
 The 500 article milestone: time for reflection
 Galileo’s Diagramma Della Verita
 Curious about lunar calendars
 How long astronauts stayed on the moon?
 Subspace
 Lost in translation (3)
 Counterfactual definiteness
 Updates (May 2016)
 Pioneers of Microvita Research (3): HansJoachim Rudolph
 Pioneers of Microvita Research (2): Frank van den Bovenkamp
 Pioneers of Microvita Research (1): Richard Gauthier
 Microvita links
 Lost in translation (2)
 What is an inverse femtobarn?
 Live Beam Status at LHC
 EDGE 2016 question and 198 responses by the invited contributors
 A short comment on Reichenbach’s Principle of Common Cause
 Sad state of physics education in Turkey
 Updates (April 2016)
 Interesting karma between Einstein and Bohr
 Updates (March 2016)
 Payback
 alla turca time
 Smell of space
 Quick reminders about the leap day
 Umberto Eco
 Principle of minimal structure
 Direct observation of gravitational waves by the Advanced LIGO
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Category Archives: tutorial
Quick reminders about the leap day
I explained the difference between the sidereal day and the solar day in a previous post (one of my popular posts). A sidereal year is the time taken by the Earth to orbit the Sun once with respect to the fixed … Continue reading
How to archive a blog
I care deeply about the preservation of selfexpression. Archiving people’s labor of love and preserving them for posterity is good for society. With commercial art, music and writing there are more avenues for preservation but nobody cares about archiving the … Continue reading
Posted in tutorial
Tagged preservation
Parity transformation changes helicity
This post is the continuation of the Parity Transformation tutorial where I demonstrated the parity transformation in 2D by using the shape of letter L. Figure (1) The image to the left of the vertical axis is the reflection of the letter … Continue reading
Parity Transformation
In physics “parity transformation” is a special kind of reflection. Parity transformation cannot be expressed as a rotation. Do not confuse the parity transformation in physics with the parity concept in mathematics. Let be a function and the parity transformation … Continue reading
Posted in physics, tutorial
Tagged parity, reflection
On the photon frequency
Image credit We know photons exist. We also know how to manipulate photons collectively. Our technology has now advanced to the level where we can even manipulate the individual photons. But, if you ask me “what is a photon?” I … Continue reading
Network Externalities
When I first heard the term “network externalities” I was kind of embarrassed that I did not know the meaning of this cool sounding term. The person who mentioned it to me said that it was a term used in economics. Later, … Continue reading
Posted in spiritual philosophy, tutorial
Tagged externality, network
Difference between duality and superposition in physics
This is a followup on an earlier posting titled “Meaning of Duality in Physics.” I request that you read that article first. The reason is that the the meaning of “duality” in physics is very different from the common meaning … Continue reading
Posted in physics, tutorial
Tagged duality, superposition
Superposition Principle of Quantum Mechanics
Classical superposition principle Classical waves pass through each other. For a medium with linear restoring forces, any local displacement of the medium will be equal to the displacement represented by the linear combination of the displacements produced by the interfering … Continue reading
π Day
March 14 is the day. Coincidentally, March 14 is also the birthday of Albert Einstein. The best encyclopedic resource for anything related to mathematics is Wolfram MathWorld which is created, developed and nurtured by Eric Weisstein. I have tremendous respect … Continue reading
Posted in mathematics, society, tutorial
Circular Resonators
I would like to bring your attention to the wonderful educational web pages maintained by Jens Uwe Nöckel http://pages.uoregon.edu/noeckel/circles For me, the most important lesson was the fact that we can view (construct) a concentric circular wave as superposition of … Continue reading
Posted in physics, tutorial
Tagged circular waves, planar waves, superposition
Light reflecting off water is polarized
The glare which is due to the polarization of the reflected light by nonmetallic surfaces bothers people but sometimes it turns into a blissful vision. Image credit: unpolarized light bouncing off the surface of water becoming horizontally polarized. I enjoyed … Continue reading
Posted in physics, science, tutorial
Tagged glare, Light, physics, polrization, reflection, science, tutorial
QM wavefunction and its many interpretations
Mathematical formalism known as Quantum Mechanics (QM) describes the outcomes of measurements performed with elementary particles when they interact with each other or external fields. Measurement is the key concept in QM. Measurement is like taking a snapshot of the … Continue reading
Posted in philosophy, physics, prediction, probability, science, tutorial
Short Descriptions of Quantum Field Theory
Lisa Randall Warped Passages, Harper Perennial (2005) “Quantum field theory, the tool with which we study particles, is based on eternal, omnipresent objects that can create and destroy those particles. These objects are the ‘fields’ of quantum field theory. Like … Continue reading
Posted in physics, tutorial
Tagged Elementary particle, physics, Quantum field theory, Virtual particle
Geometric Algebra (1)
Geometric algebra is not to be confused with algebraic geometry. Geometric algebra is also known as Clifford algebra which has many applications in physics and engineering. Algebraic geometry, on the other hand, is a branch of abstract mathematics. Geometric algebra … Continue reading
Posted in mathematics, tutorial
Tagged Clifford algebra, Euclidean space, Multivector
Save these physics tutorials (2)
I am very physics focused these days. It is too bad that I am not an academic physicist and I have to work 1o hours a day on boring subjects to make a living. It is a shame that academic … Continue reading
Save these physics tutorials (1)
There is redundancy in the mathematical description of physical reality. The redundancy has been increasing exponentially since the beginning of the 20’th century. We have different theories to describe the microscopic and macroscopic phenomena, for example. I am not talking … Continue reading
Posted in physics, tutorial
Tagged Education, Mathematical notation, mathematics, Physical law
Geometric interpretation of sqrt(1)
I wrote a post titled Euler rule is almost mystical where I mentioned the CotesEuler identity Euler rule is a special case of the CotesEuler identity. represents the rotations of the complex unit vector. This provides a natural interpretation for … Continue reading
Posted in mathematics, tutorial
Tagged Complex plane, Euler's identity
Biquaternion
In the previous post we have seen that a quaternion is defined as where and , , , are real numbers. Biquaternion The biquaternion is a complexified quaternion where , , , are complex numbers. The basis elements , , … Continue reading
Quaternion
Quaternions are 4dimensional generalizations of complex numbers. It can also be said that the basis elements , , of a quaternion are 3dimensional generalization of the pure imaginary number . William Rowan Hamilton discovered quaternions in 1843. After many years … Continue reading
Posted in mathematics, tutorial
Tagged Complex number, Quaternion, William Rowan Hamilton
Golden Number and Lucas Sequence
The golden number is . There is extensive literature on the golden number which is also known as the golden ratio. The exposition in Wolfram Mathworld [http://mathworld.wolfram.com/GoldenRatio.html] is excellent. John Baez gave an interesting exposition [http://math.ucr.edu/home/baez/week203.html]. Mario Livio’s book “The Golden … Continue reading
Posted in mathematics, tutorial
Tagged Golden Number, Golden ratio, Lucas, Math
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
Euler rule is almost mystical
In his wonderful book “Road to Reality” Roger Penrose mentions that the Euler rule is “almost mystical” because it relates the 5 fundamental numbers 0, 1, i, π and e to each other. The Euler rule is a special case … Continue reading
Posted in mathematics, tutorial
Tagged Complex number, Euler, Euler's identity
i raised to the power of i
Remember the general rule Using this rule we can compute i raised to the power of i remember that and
Posted in mathematics, tutorial
Tagged FAQs Help and Tutorials
How to insert vertical space in the WordPress editor
Sometimes it is necessary to control the vertical spacing in your WordPress blogs, especially around inserted pictures. My solution is the following: In the WordPress editor go to the HTML mode (the tab labeled as “Text”) and insert this command … Continue reading
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
Conditional Probability
The concept of conditional probability is not properly taught in schools. Bayes formula is mentioned but the table technique is rarely discussed. It is important to point out that the conditional probability table is an implementation of the Bayes formula. … Continue reading
Posted in tutorial
Tagged Bayes, Bayes' theorem, Bayesian probability, Conditional probability, Math, Probability, Quantum mechanics, Statistics
How to Compute Standard Deviation in One Pass
Unbiased Estimator of Sample Standard Deviation The formula for the sample standard deviation is where N is the number of data points in your sample. The first formula is known as the unbiased estimator of sample standard deviation. This is … Continue reading
Posted in tutorial
Tagged Standard deviation
Notes on Galactic Motion
Our galaxy (Milky Way) is one of the spiral galaxies. Our solar system is located in one of the spiral arms. The Milky Way is like a flat disc (diameter: 100000 lightyears, thickness: 1000 lightyears). The thickness increases at the galactic center. Our … Continue reading
Uncertainty is Highest at 50:50 Odds
Bernoulli Experiments Experiments with only 2 outcomes are known as Bernoulli experiments. Examples are: Heads or tails in a coin toss Win or lose True or False Yes or No Binary code 0 or 1 The list is not limited … Continue reading
Posted in tutorial
Tagged Probability
Academic Studies of Consciousness
Academic institutions in America are dominated by scientific materialists. This does not stop the courageous pioneer scientists who work on consciousness. Knowing the circumstances I cannot stress enough how courageous these scientists are. One of these academicians is David Chalmers who … Continue reading
On Information, Surface, and Volume
You may have read Michael Talbot’s book “The Holographic Universe.” He talks about two ideas: a) brain as hologram b) universe as hologram. In this article I will comment on the speculation of physical universe being a hologram. Talbot credits … Continue reading
Posted in physics, tutorial
Tagged Bekenstein bound, Black hole, David Bohm, Edward Witten, Gerard 't Hooft, Holographic principle, Leonard Susskind, Michael Talbot
What is Dimension?
I use the word “dimension” in my writing quite often. I did not get a chance to clarify what I mean by it. The word “dimension” has multiple meanings in various contexts and it is worth spending few minutes to … Continue reading
Posted in tutorial
Tagged Dimension, Sierpinski triangle
LaTex Book Template with Fancy Header
You can typeset books using LaTex which is free software. There is no free lunch, however. Installing the software and learning LaTex requires a lot of effort. Don’t be discouraged. Remember, you can produce publication quality books using LaTex. I … Continue reading
Posted in tutorial
Tagged Editors and IDEs, LaTeX, TeX, Typesetting