What is Path: Definition and 1000 Discussions

In Western esotericism the Left-Hand Path and Right-Hand Path are the dichotomy between two opposing approaches to magic. This terminology is used in various groups involved in the occult and ceremonial magic. In some definitions, the Left-Hand Path is equated with malicious black magic or black shamanism, while the Right-Hand Path with benevolent white magic. Other occultists have criticised this definition, believing that the Left–Right dichotomy refers merely to different kinds of working and does not necessarily connote good or bad magical actions.In more recent definitions, which base themselves on the terms' origins in Indian Tantra, the Right-Hand Path (RHP, or Dakshinachara), is seen as a definition for those magical groups that follow specific ethical codes and adopt social convention, while the Left-Hand Path (LHP, or Vamamarga) adopts the opposite attitude, espousing the breaking of taboo and the abandoning of set morality. Some contemporary occultists, such as Peter J. Carroll, have stressed that both paths can be followed by a magical practitioner, as essentially they have the same goals.Another distinguishing characteristic separating the two is based upon the aim of the practitioner. Right-handed path practitioners tend to work towards ascending their soul towards ultimate union (or reunion) with the divine source, returning to heaven, allegorically alluded to as restoration or climbing back up the ladder after the "great fall". In Solomon's lesser key, they embrace the light and try to annihilate anything they regard as "dark" or "evil". On the other hand, left-handed path practitioners do not see this as the ultimate aim but a step towards their goal. Left-handed path practitioners embrace the dark as well as the light in order to invoke the alchemical formula solve et coagula ("dissolve and precipitate"), confronting the negative in order to transmute it into desirable qualities. Left-handed path practitioners descend towards union with the divine to obtain Godhood status, with God-like powers of their own, having reunited with the ultimate divine source-energy; then once there, taking one more step separating from that divinity, out of this creation into a new creation of their own making, with themselves as the sole divinity of the new universe, apart from the previous creation. The godhood self sought by Left Hand Path followers is represented by the Qlipha Thaumiel in the Tree of Knowledge.

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  1. chwala

    Solve the problem involving space curve

    Refreshing... i'll start with part (a). Just sharing in case there is more insight... In my working i have, ##T = \dfrac{dr}{ds}=\dfrac{dx}{ds}i + \dfrac{dy}{ds}j + \dfrac{dz}{ds}k## and ##x=\tan^{-1} s, y = \dfrac{\sqrt2}{2} \ln (s^2+1), z=\tan^{-1} s## ##\dfrac{ds}{dx} = \sec^2 x = 1...
  2. clueless_roboticist

    I Work done along a path: how does velocity play into it?

    To boil down the question, if you have a body at rest and apply a constant force, it will accelerate and the work done on it will be F*s (or the integral version of that statement). However, as the body accelerates due to the force, does that mean, per a given time unit, more and more work will...
  3. shivajikobardan

    Why should not I add current directory to PATH in Linux?

    I get that if I put current directory in PATH like said above, I can execute commands from any directory. But what's the problem in that? How's other person able to come and execute it? Why does it makes system unsecure compared to the case where we don't put current directory to PATH? Can you...
  4. G

    Computing path integral with real and Grassmann variables

    The first step seems easy: computation of the $\theta$ and $\overline{\theta}$ integrals give $$Z[w] = \frac{1}{(2\pi)^{n/2}}\int d^n x \: \det(\partial_j w_i(x)) \exp{\left(-\frac{1}{2}w_i(x)w_i(x)\right)}.$$ From here, I tried using that $$\det(\partial_j w_i (x)) = \det\left(\partial_j w_i...
  5. LenaWenaKena

    I'm interested in physics but have no idea what path to take (14 years old)

    How did you find PF?: Google Search I'm new to this forum and I am currently 14 years old. I've recently taken an interest in physics(Due to popular science/ books and natural curiosity). But I have no idea what path to take so I could study it. I come from a poor and quite unsupportive family...
  6. G

    I Realistic steering wheel angle when car follows points along a path

    Good morning , I managed to simplify the physics of my car with only the centrifugal and traction forces. If I'm in control of it, the realism is acceptable for a city builder. On the other hand, I encounter a problem when the car follows an array of points. The path of the car on my graph...
  7. .Scott

    I Black Hole Information path described in new article

    I'm posting this in "Quantum Physics" although it is just as much "General Relativity". A paper entitled "Quantum gravitational corrections to particle creation by black holes" was published in Science Direct earlier this month. It appears to provide an event horizon mechanism for holding...
  8. C

    Closed path term in Thermodynamics

    For part(a) of this problem, The solution is, a. 160 J In part (a), are they referring to the simi-circular path from R to S instead of the path from R back to R? I though the closed path would be the path from R to R, or the path from S to S, where both give W = 0 since ##W = P(V_f - V_i) =...
  9. C

    Proof of angle in path difference formula for two slits

    For this I am trying to prove that angle theta between PQ and QO is equal to theta highlighted so that I know I can use theta is the path difference formula. I assume that the rays ##r_1## and ##r_2## are parallel since ##L >> d## My proof gives that the two thetas are equal, however I am...
  10. M

    Optics for High Resolution Laser Imaging: Finding the Best Path

    Objectives: - best path for optics needed to focus and "draw"/project a high resolution image onto a workspace around 500mm square (for a Laser Direct Imaging machine) - where to cost effectively purchase or make the optics necessary to build a prototype The problem: I need to project a high...
  11. C

    Describing path of the object in an xy plane

    For part(d) of this problem, The solution is, However, how did they know that the object moves in a circle of radius 5.00m centered at (0,4.00m)? Many thanks!
  12. A

    I Distance traveled by a ball down a ramp and on a flat path

    Question: A ball is hit with a certain force and it starts with an initial velocity of V m/sec decelerating due to friction along a flat path and then up an inclined ramp coming to stop at the top of the ramp where the ramp becomes flat again (as per diagram A). The total distance traveled along...
  13. P4Penguin

    Chemistry Derive an expression for mean free path from survival eqn exp(-x/λ)

    If the distance between the centres of two molecules is σ, then imagining a a cylinder with radius σ the number of molecules can be given by πσ²cn where c = average velocity. So mean free path can be given by λ = c/πσ²cn = 1/nπσ². But do I derive it from exp(-x/λ)?
  14. qft-El

    A Heisenberg picture and Path integrals (Zee QFT)

    Reading the introduction to path integrals given in the latest edition of Zee's "Quantum field theory in a nutshell", I have found a remark which I don't really understand. The author is evaluating the free particle propagator ##K(q_f, t; q_i, 0)## $$\langle q_f\lvert e^{-iHt}\lvert q_i...
  15. James1238765

    I Geodesic path in 2 dimensions?

    The object takes a step [x, y] in 2 dimensional space. This is represented the change in coordinate ##x \vec e_x + y \vec e_y## where ##e_x## and ##e_y## are basis vectors in this space. Suppose we define a non-linear / parametric transformation of this ##\vec e_x## and ##\vec e_y## basis...
  16. R

    B Does DCQE show a shift between the two "which path" results?

    The Delayed Choice Quantum Eraser (DCQE) experiment attempts to show that which-path information can be "erased," and interference recovered. I'll refrain from explaining the experiment, and assume you are familiar with the setup. I refer to the Wikipedia page about it, and the original Kim...
  17. DaveC426913

    Plotting My Air Flight Path from Photos

    I expected this to be challenging but it's turning out to be much harder than I expected. I just flew back from Cuba to Toronto, got in at 315AM. It was a beautiful, clear and I had the window seat, so I took a bunch of pics. Now I'm plotting the flight path by analyzing the photos. It's super...
  18. Jimyoung

    Why is the Entropy of the Universe (total entropy) a path function?

    I understand that S (Ssys) is a state function but I can't understand why Ssurr and Suniv (or Stot) are a path function.
  19. U

    Complex Integration Along Given Path

    From plotting the given path I know that the path is a curve that extends from z = 1 to z=5 on the complex plane. My plan was to parametrize the distance from z = 1 to 5 as z = x, and create a closed contour that encloses z=0, where I could use Cauchy's Integral Formula, with f(z) being 1 / (z +...
  20. Arne

    I Assumptions about the convex hull of a closed path in a 4D space

    Hello everyone, I am struggling to get insight into a certain set in 4D space. Given is a closed path in 4D-space with constant Euclidean norm $$\vec{\gamma} (\theta):[0,2\pi]\to\mathbb{R}^4, \ \ \vec{\gamma}(0)=\vec{\gamma}(2\pi), \ \ ||\vec{\gamma}(\theta)||_2 = \mathrm{const.}$$ I am looking...
  21. Jackie Ma

    Which Path is Quickest? Investigating Ball Bearings on an Inclined Tube

    I've found an interesting problem in an undergrad physics book which I've bought, and my high school teacher to whom I've showed it said it was intriguing, and didn't know the answer. A tube in the shape of a rectangle with rounded corners is placed in a vertical plane, and inclined towards the...
  22. modellatore

    Studying Theoretical Physics Study Path (it's about tetrads....)

    I'm a graduate theoretical physics student at the (almost) end of his master's degree with a fairly varied curriculum, as I attended both QFT (and sub-courses on qed qcd etc) and GR courses. However in my latest intro to quantum gravity classes I familiarised with tetrads and, after a lot of...
  23. DaveC426913

    Tornado path visualization - what is this data?

    Does anyone have a clue what the gold points and associated lines represent? I notice that all the gold lines form closed loops (so they're not travel paths) and they cross themselves (so they're not contours). I can't think of any type of data that would result in this. I've tried to follow...
  24. A

    Basic exercise of path integral

    In the book it is mentioned that, in path c, the line integral would be: $$\int \vec{F}\cdot \vec{dr} = A \int_{1}^{0}xy dx = A\int_1^0 x dx = -\dfrac{A}{2}$$. but I think that dx is negative in that case, the result would be positive, right?
  25. Sophrosyne

    I Question about Feynman’s path integrals

    In Feynman’s path integrals, there is: ∫dq″Π0(t″,t′;q″,q′)=1 What is the funny pi looking symbol?
  26. Rikudo

    Path on Cone Fig.1: Angle ACP is 90°?

    Fig.1 Fig 2 (the net of the cone) Point C is the turning point. ##\phi##= 90°. I wonder why the angle ACP is 90°. Is this a coincidence, or the "wire of minimum length" has anything to do with this? (Though, I thought the minimum length of the path can be acquired if ABP is a right angle)
  27. Monsterboy

    Comp Sci Using Single Source Shortest Path Algorithm to find the longest path

    This is the weighted, directed acyclic graph I created in JavaScript class WeightedDirectedGraph { constructor() { this.adjacencyList = {}; } addNode(node) { if(!this.adjacencyList[node]) { this.adjacencyList[node] = []; } } addEdge(node1, node2, direction, weight) {...
  28. vanhees71

    A What do physicists mean when they say photons have a "path"?

    [Moderator's note: thread spun off from previous thread due to topic/level change.] This [Ed.: the claim that photons have a "path"] is a misconception of quantum theory already for massive particles. It's even more severely misleading for massless quanta of spin ##\geq 1##, which do not even...
  29. H

    A Double double slit experiment and path information

    Hi Pfq My question is about this experiment: https://www.nature.com/articles/s41598-020-68181-1 (the link was given by DrChinese. If all the impacts are conserved no interference can be seen on the screens. but if we only take the impacts (Y, yi) where Y is always at the same position on the...
  30. R

    I Can we predict the path of the Sun from a single observation point along the transit?

    Hi. I have this idea that might be useful for celestial navigation. If you were on a random place on the Earth, and you had a way of measuring the altitude of the sun above the horizon, at a precise moment, could you then predict the complete path, such that you could determine the altitude at...
  31. G

    I Path integral for photon

    I am aware that one usually starts from the Maxwell equations and then derives the masslessness of a photon. But can one do it the other way round? The action of photon would be ##S = \hbar \int \nu (1 - \dot{x}^2) \mbox{d}t##, where ##\nu## is the frequency acting as a Lagrange multiplier...
  32. katatosh

    Major in Physics or Physics/Astronomy for Grad School Cosmology?

    Hello all! I have been taking an academic break from school for certain mental health reasons that I won't waste your time talking about. Now, I am only a freshman in college. My school's physics department currently offers 2 majors: Physics and Physics/Astronomy. Obviously, I have lots of time...
  33. M

    Other Is physics, computer science, or engineering the right path for me?

    I am 18 and currently in the middle of taking a gap year from high school to college. I am going to college this fall, and I want to go into college with a better grip on what I want to do than I have now. I absolutely love physics, science, and math. I also have a huge attachment to the idea of...
  34. redditflingbing

    Unsure of the path I should take after univeristy

    At the start of univerity I had a huge problem that really threw me off track. Thus during the first two years (4 year total due to masters) I focused my time on the core maths modules (maths 1, 2, 3, 4). In year 3 and 4 I sorted the problem and really got my head down and ended up achieving a...
  35. J

    B Is there a function for every possible "path"?

    Has any path/line/shape/contour function? And how find function of complex "path"? for example this?
  36. Wizard

    A Orthogonality of variations in Faddev-Popov method for path integral

    Hi there, I've been stuck on this issue for two days. I'm hoping someone knowledgeable can explain. I'm working through the construction of the quantum path integral for the free electrodynamic theory. I've been following a text by Fujikawa ("Path Integrals and Quantum Anomalies") and also...
  37. KyleGranger

    Current Path for Corona Discharge

    I am trying to understand the current path for corona. Assuming the corona appears on the high voltage electrode, how are the electrons actually flowing? I understand that with flashover a low resistance current path is created as the air is ionized but what is happening with corona?
  38. U

    Engineering Path integrals in scalar fields when the path is not provided

    I cannot seem to start answering the question as a result of the path not being provided. How do I solve this when the path is not provided? See picture below
  39. JD_PM

    Spinning ball deviation from straight path | Magnus effect

    Let's focus on obtaining how much will the ball deviate from a straight path and assume the spin of the ball to be ##11600## rpm and ##C_L = 0.4## to be the lift coefficient A pitcher is able to make a baseball follow a curved path by impinging spin on the ball (which triggers nonsymmetric...
  40. K

    I Feynman path integral and events beyond the speed of light

    In Richard Feynman's book "The Strange Theory of Light and Matter", in chapter 2, he explains how to calculate the probability that light from some source will be reflected by a mirror and be detected at some location. He explains how you sum up all of the probability amplitudes (represented...
  41. warhammer

    Question on RMS Mean Free Path

    lambda (rms)= v(rms) * t(rms) -- 1 Now I assume here that t(rms)=1/(√2*n*π*d^2*v(rms)) But this cancels the v(rms) term when used in eq (1) so the mean free path and the RMS free path would actually be the same (even later on when used in the aforementioned Survival Equation) I would like to...
  42. S

    Finding path difference of EM waves received by radio telecopes

    My attempt: I think ##x## is the path difference so by using trigonometry, I got ##x=d \sin \theta## But my teacher said the answer is ##d \cos \theta## What is my mistake? Thanks Edit: Sorry, I found my mistake. My ##x## is not the path difference
  43. warhammer

    Mean Free Path (Introductory Thermal Physics)

    We have the area of incandescence. Using that we can find the radius and subsequently the diameter. A=π* r^2 -----> r= 0.0025m so d=0.005m Using the formula (given by Clausius as we are not specified in question whether it's a Maxwellian distribution or not) Mean Free Path λ=...
  44. J

    A QM is Feynman path ensemble - is QFT Feynman field ensemble?

    While classical mechanics uses single action optimizing trajectory, QM can be formulated as Feynman ensemble of trajectories. As in derivation of Brownian motion, mathematically it is convenient to use nonphysical: nowhere differentiable trajectories - should it be so? Can this connection be...
  45. AJSayad

    Finding Your Path to the Aerospace Engineering Industry

    Summary:: What is the best way to get into the Aerospace Engineering Industry? Hi everyone, I'm new to the physics forums. My name is Andrew, I'm going to be in my undergrad Senior year in mechanical engineering this coming fall. I've recently been looking into PhD programs and I've been...
  46. W

    I Sun Disappearance: Impact on Earth's Path

    Hi. I'm new and hoping for some discussion. I've been looking at some physics at home on my own while Covid-19 restrictions keep me off work. I'm not registered as a student anywhere and so don't have any chance to chat with other students or university staff. Hence, I'd be grateful for some...
  47. .Scott

    B Myth: When you toss something, air aside, it follows a parabolic path

    Actually, the path can be precisely parabolic, but you will need quite an arm to get that result. More commonly, the path will be a section of an ellipse - one that terminate when it hits the ground. In general, it will be a segment of one of the conic sections.
  48. Tareq Naushad

    I Free electron path without a nearby proton

    In absence of a positive electric field created by proton what type of behavior an electron shows? I am talking about a free electron like from a electron gun in deep space . Pauli's exclusion, orbitals, energy level etc. which are normal in an atom for electron will be absent for an electron...
  49. Mary Conrads Sanburn

    COVID-19: The Path Forward - How the Science Will Drive Recovery

    COVID-19: The Path Forward - How the Science Will Drive Recovery https://www.youtube.com/results?search_query=Covid-19-The+Path+Forward-How+the+Science+will+Drive+Recovery
  50. JD_PM

    I Understanding how to derive the Feynman rules out of the path integral

    I am studying interacting scalar fields (from Osborn) using the path integral approach. We define the functional integral \begin{equation*} Z[J] := \int d[\phi] e^{iS[\phi] + i\int d^d x J(x) \phi(x)} \tag{1} \end{equation*} The idea is to differentiate ##Z[J]## with respect to ##J## and end...
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