Axis Definition and 927 Threads

The Axis powers, originally called the Rome–Berlin Axis, was a military coalition that fought in World War II against the Allies. The Axis powers agreed on their opposition to the Allies, but did not completely coordinate their activity.
The Axis grew out of the diplomatic efforts of Nazi Germany, the Kingdom of Italy, and the Empire of Japan to secure their own specific expansionist interests in the mid-1930s. The first step was the protocol signed by Germany and Italy in October 1936. Benito Mussolini declared on 1 November 1936 that all other European countries would from then on rotate on the Rome–Berlin axis, thus creating the term "Axis". The almost simultaneous second step was the signing in November 1936 of the Anti-Comintern Pact, an anti-communist treaty between Germany and Japan. Italy joined the Pact in 1937 and Hungary and Spain joined in 1939. The "Rome–Berlin Axis" became a military alliance in 1939 under the so-called "Pact of Steel", with the Tripartite Pact of 1940 leading to the integration of the military aims of Germany, Italy and Japan. As such the Anti-Comintern Pact, the Tripartite Pact, and the Pact of Steel were the agreements that formed the main bases of the Axis.Particularly within Europe, the term "the Axis" is still often used primarily to refer to the alliance between Italy and Germany, though outside Europe it is normally understood as including Japan.At its zenith in 1942 during World War II, the Axis presided over territories that occupied large parts of Europe, North Africa, and East Asia. In contrast to the Allies, there were no three-way summit meetings and cooperation and coordination was minimal, and on occasion the interests of the major Axis powers were at variance with each other. The war ended in 1945 with the defeat of the Axis powers and the dissolution of their alliance. As in the case of the Allies, membership of the Axis was fluid, with some nations switching sides or changing their degree of military involvement over the course of the war.

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  1. cidadao

    Control the rotation of several discs along the same axis

    Hi everyone, I have an engineering background, I'm an EE, but I know almost nothing about mechanics and that's why I'm writing here. This is the challenge: how to control the rotation of multiple discs along the same axis? Assume you have a sliced cylinder. The ideal scenario would be to...
  2. RicardoMP

    Rotating Cone and instantaneous axis of rotation

    Homework Statement Hi! I'm trying to solve a simple problem of mechanics, but I'm getting the wrong results and I suppose I don't yet grasp the concept of instantaneous axis of rotation very well. So, a cone (see attached picture) is rolling without slipping on a plane. Vp is point P linear...
  3. polyChron

    Rotations in Bloch Sphere about an arbitrary axis

    Hey, (I have already asked the question at http://physics.stackexchange.com/questions/244586/bloch-sphere-interpretation-of-rotations, I am not sure this forum's etiquette allows that!) I am trying to understand the following statement. "Suppose a single qubit has a state represented by the...
  4. C

    MHB Math Problem: Rotation on z Axis

    I currently have a math problem that i am so thoroughly stuck on that my brain is coming out of my ears. I am given z1 θ = 600 and R10 = [2 -2 -1] [1 2 -2]...
  5. E

    Magnetic field and gradient along axis of antihelmholtz pair

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  6. Frankenstein19

    Problem with choosing which axis should be positive or negat

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  7. A

    Y axis intercepts of ellipse tangents

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  8. F

    Calculate the charge of a density distributed along z axis?

    Homework Statement How do I find the total charge from a material with a charge density given by \rho =10^{-9} \text{cos}\left ( \frac{z}{z_0}\right ) C/m^3 that exist between \frac{-\pi}{3}z_0<z<\frac{\pi}{3}z_0. Homework Equations None I can think of. The Attempt at a Solution Attempt #1...
  9. Nahiyan Ahmed

    Why does an object spin at a different axis at high speeds?

    I have a magnet that has a cylindrical shape, where the center is slightly larger than its outer sides. I was wondering why it beings to spin on its outer end when spun very fast (on its long edge). Whereas if its spun not too fast, it stays on its axis. I have included a photo for further...
  10. B

    Diagonal of a thin rectangular foil, inertial principal axis

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  11. A

    At what point along the x axis is the electric field zero?

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  12. S

    Solving for y in A(total)*y(horz centroidal axis): Where Did I Go Wrong?

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  13. G

    Constraint of moment about an axis

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  14. I

    The ''apparent'' velocity in an axis fixed to the body

    The above states that the velocity of point Q relative to P is represented by dr/dt. However, it also states that ∂r/∂t is the apparent velocity of Q in Pxyz. How does that make sense? I mean P is the origin of axes Pxyz so surely the velocity of point Q relative to P should be the same as the...
  15. G

    Understanding Rotational Acceleration and the Role of Normal Force

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  16. Q

    Magnitude of magnetic field at distance from central axis

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  17. A

    How optical axis is related to dielectric tensor?

    I want to know the relationship between the optical axis direction of a crystal and the dielectric constants in different directions in an anisotropic material.
  18. M

    Vector Rotation About Arbitrary Axis

    I am new to this forum. I was reading this document : http://math.kennesaw.edu/~plaval/math4490/rotgen.pdf Here the author says that from this figure http://i.stack.imgur.com/KBw9l.png that we can express $v_{\perp}$ like this : $$T (v_{\perp}) = \cos(\theta) v_{\perp} + \sin(\theta) w$$...
  19. W

    Finding second moment of inertia about x axis

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  20. vetgirl1990

    Applying the parallel axis theorem to find inertia

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  21. jcruise322

    When to use parallel axis theorem for objects....

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  22. W

    Solution: Moment about Y-Axis for Homogenous Plates w/ 10kg Mass

    Homework Statement the homogenous plates shown in the figure has a mass of 10kg and is subjected to a forec and moments alonf its edges. If it is supported in the horizontal plate by means of a roller at A , a ball and a socket joint at B , and cord at C , determine the components of reaction...
  23. B3NR4Y

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  24. J

    Calculating/simulating effect of mass changes in a gyroscope

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  25. gracy

    Potential V at point P on the axis of the ring.

    Homework Statement Electric charge Q is uniformly distributed around a thin ring of radius "a".Find the potential at a point p on the axis of the ring at a distance x from the centre of the ring. Homework Equations ##r##=##√x^2+a^2## The Attempt at a Solution \ [/B] I just want to ask...
  26. hackhard

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  27. hackhard

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  28. Chrono G. Xay

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  29. S

    Help with spring rotating around its axis of rotational symm

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  30. G

    Why Is y Bar Zero in the Parallel Axis Theorem for Area?

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  31. Leef

    Free floating electron quantum spin axis locked to space?

    This is my attempt at understanding any real world physical effects from quantum spin. I will start with the short version first. A ... When we have a free floating electron in space is the physical orientation of the quantum spin axis locked into a fixed 3D orientation and from there can only...
  32. peter010

    Will there be a rotation around z axis?

    Hello people, I know it seems like a silly question. In case 1, its clear that no rotation will occur around z axis. Anyhow, case number 2 is confusing me; I can't decide clearly if a rotation will occur since a moment should be generated around z axis, but in the same time, the line of the...
  33. B

    Applying Conservation of Momentum along the Y axis

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  34. J

    Instability of free rigid body rotation about middle axis

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  35. D

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  36. G

    Why is the direction of M_0 (r x F) out of the paper?

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  37. P

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  38. Z

    Finding the Horizontal Force on a Bracket Supported by a Single Screw

    Homework Statement One side of a plant shelf is supported by a bracket mounted on a vertical wall by a single screw. Ignore the weight of the bracket. Find the horizontal component of the force that the screw exerts on the bracket when an 80.0 N vertical force is applied as shown Homework...
  39. A

    Finding rotation axis and angle, using eigenvalues

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  40. M

    Calculating Moments: Forces on a Ratchet Wrench

    Homework Statement Two 20 lb forces are applied to a ratchet wrench down at A and up at B to loosen bolt β. Find the sum of the moments of the two forces about the axis (x) of the bolt. Homework Equations What are the moments at point A, B, and Q? How do I find the moment about the x-axis and...
  41. Adrian555

    Types of Rotations - Hi Everybody, Ask Your Questions Here

    Hi everybody, This is my first post, so I apologise for all the possible mistakes that I can make now and in the future. I promise that I'll learn from them! My question is the following: It's well-known the relationship between two pair of cartesian axes when a circular rotation is made...
  42. J

    Drawing 3D curved arrows around an axis

    Hi, I'm working on a project to illustrate the isometries of a tetrahedron and would like to be able to add a curved arrow around the black axis of rotation in the Manipulate display to indicate which way the solid is rotating depending if the angle is negative or positive. Here's a display of...
  43. jackMybrain@ru

    Derive an equation for electric potential V(z) on z axis

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  44. A

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  45. T

    How Do You Calculate the Semi-Major Axis of a New Elliptical Orbit?

    Homework Statement (a) A satellite is initially in a geostationary orbit around the Earth, so that the satellite always remains above the same point on the Earth’s equator. Show that the radius of the orbit is ##4.22\times 10^7##(b)An engine is briefly fired in the direction of the satellite’s...
  46. E

    Moving center of mass, torque and axis of rotation

    Hello. Suppose I have a coordinate system with the origin at the center of mass at rest of some rigid object and I wish to calculate the total change in angular momentum of the object with respect to it's center of mass. If I apply a torque to the object, that also happens to be an unbalanced...
  47. mgkii

    Energy at zero axis in an Electromagnetic field?

    Can someone correct my understanding on electromagnetic waves please; I've clearly got the wrong end of a stick somewhere, but can't figure out where my misunderstanding is! Thanks. If I draw a classic EM wave with the electric field on the up and down axis and the magnetic field at right...
  48. O

    Rotation from Oscillating Axis Of Rotation

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  49. **Mariam**

    Moment of inertia from diffrent axis

    Homework Statement Two particles of mass m1 = 14 kg and m2 = 24 kg are connected by a massless rod of length 1.4 m. Find the moment of inertia of this system for rotations about the following pivot points. Assume the rotation axis is perpendicular to the rod. A) center of rod B) end of m1...
  50. karush

    MHB Find the area beween the curves y=x^2 and x+y=2 and the x axis

    Find the area beween the curves $y=x^2$ and $x+y=2$ and the x axis First on graphing these the $x-axis$ seem irrelevant in that it is outside the area to find. y=x^2;y=-x+2
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