What is Transverse: Definition and 308 Discussions

Transverse myelitis (TM) is a rare neurological condition in which the spinal cord is inflamed. Transverse implies that the inflammation extends horizontally across the spinal cord. Partial transverse myelitis and partial myelitis are terms sometimes used to specify inflammation that only affects part of the width of the spinal cord. TM is characterized by weakness and numbness of the limbs, deficits in sensation and motor skills, dysfunctional urethral and anal sphincter activities, and dysfunction of the autonomic nervous system that can lead to episodes of high blood pressure. Signs and symptoms vary according to the affected level of the spinal cord. The underlying cause of TM is unknown. The spinal cord inflammation seen in TM has been associated with various infections, immune system disorders, or damage to nerve fibers, by loss of myelin. As opposed to leukomyelitis which affects only the white matter, it affects the entire cross-section of the spinal cord. Decreased electrical conductivity in the nervous system can result.

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  1. mrsmitten

    Transverse Doppler effect of sound?

    I have been trying to find an per reviewed article where it is actually tested that sound does not have a transverse Doppler effect. I figure that its probably do to my lack of resources. if it is could somebody give me a link to the article i would appreciate it. If not, i must ask why has it...
  2. binbagsss

    Gravitational Waves-Longitudinal or transverse

    Hi, So the gravitational waves detected by LIGO recently were transverse right? And this is because the weak field approximation which reduces EFE to linearized holds very well at such distances and these describe that the gravtiational waves will be transverse. I've read that you also get...
  3. N

    Transverse waves and the movement of particles

    Homework Statement Alright, this problem has been driving me into a confused rage. The wave is moving in an upward direction so particle A should be moving up as well, right? But every single website I've used to study claims that it's moving in a downward direction. How? Homework...
  4. G

    Imaginary Transverse Space of Superluminal Lorentz Transform

    I was reading this paper: http://dinamico2.unibg.it/recami/erasmo%20docs/SomeOld/RevisitingSLTsLNC1982.pdf It is on superluminal Lorentz transformations and is too advanced for me. :confused: But anyway, take a look at equation(s) (11). For the y' and z' transformations, there is an imaginary...
  5. Z

    The definition of transverse amplitude in the process: ep→epπ

    When CLAS of Jlab describe the result of the process ep→epπ,the use the terminal "transverse amplitude" Ml±(W,Q2), El±(W,Q2),and "scalar(longitudinal) amplitudes"Sl±(W,Q2),they correspond to photons of the magnetic, electric, and Coulombic type.Are they observables? The index of...
  6. B

    Why can’t transverse waves travel through a gas or liquid?

    Homework Statement Why can’t transverse waves travel through a gas or liquid? Homework EquationsThe Attempt at a Solution I understand that transverse waves require rigid medium through which to transfer their energy so they can travel through solids. I'll just accept that transverse waves can...
  7. M

    Finding Tension in a Transverse Wave on a String

    Homework Statement A transverse pulse is propagating on a 2.0 m long string of mass 50 g. The pulse is described by the equation: y(x,t)=pi/(pi+(3x/2+pi(t))^2) , with x and y in meters, and t in seconds. Find the tension in the string. Homework Equations y=asin(wt+thetha)[/B]The Attempt at...
  8. E

    Why is the resonance condition satisfied in a transverse resonance method?

    The Transverse resonance method is used to determine the propagation constant of a wave in several waveguides, like the rectangular waveguide, or also dielectric waveguides. It takes advantage of the fact that a standing wave is present along a certain direction (transverse with respect to the...
  9. S

    Transverse Oscillations with 3 beads

    Homework Statement Consider a light elastic string of unstretched length 4a0, stretched horizontally between two fixed points distance 4a apart (a>a0). There are particles of mass m attached so as to divide the string into four equal sections. We enumerate the segments from left to right, i=1...
  10. N

    What is the true definition of a crest in physics?

    Homework Statement I was taught that a crest is the section of the wave above rest position. Homework EquationsThe Attempt at a Solution Now that I am studying Physics at higher level I am getting mixed up as sometimes I encounter situations where a crest is the whole part/section of the...
  11. Ryaners

    Transverse Velocity of Wave, given position & time

    Can't see where I'm going wrong here - would greatly appreciate if anyone can point it out! I've gotten the other parts of the question right, so I know that: ω = 125.66 rad/s A = 2.50 * 10-3m k = 3.49 rad/m The wave is moving in the +x direction. The general equation for the position of a...
  12. O

    Transverse Oscillation of horizontal Mass-Springs system

    Homework Statement Mass M is supported by a smooth table and connected by two light horizontal springs to two fixed blocks. Each spring is of natural length L. Both springs are initially extended by L to get a total width between blocks of 4L. The spring constant of both springs is k. When...
  13. Harel

    Transverse Vector: Definition & Meaning

    Hey, in sean carroll's book about GR he said something about transverse vector, can someone explain me what a transverse vector is? Also he said:"Remember that the vectors are defiend only in the two transverse dimensions" what is the meaning of transverse dimension
  14. G

    Spotting Errors in Transverse & Longitudinal Accelerations

    Let's say you know all 3 cartesian components of a particle's velocity and all 3 for it's acceleration. You can split the acceleration vector into two vectors, one parallel (longitudinal) to the velocity vector and one perpendicular (transverse) to the velocity vector. Then, I found the...
  15. pyctz

    Transverse waves moving (a string)

    in transverse wave (traveling pulse) when a particle move down it has maximum velocity at equilibrium point , why it stop suddenly at this point?
  16. H

    Light is a transverse oscillitating wave (can't conceptualize)

    I know light is an electromagnetic wave that has an electric field and magnetic field that are perpendicular to each other. I was wondering how the oscillation was occurring? 1. Are the strength of the fields waning and waxing perpendicularly to the propogation of motion like in the case of...
  17. V

    Can You Measure the Spin of a Neutrino Along the X or Y Axes?

    Neutrinos are always left handed* and so, if you set up a coordinate system with the z-axis pointing in the direction of a neutrino's momentum, any measurement of its spin's z-component will always yield ##-\hbar/2##. What if you measured the spin of the neutrino along the x or y axes? Or is...
  18. kelvin490

    Question about force in transverse waves on a string

    In deriving wave equation or power transmission of wave transmitted by a string, it is usually stated (with some assumptions) that the transverse force on a point of the string is proportional to the slope at that point. An example is given in p.20 of this notes...
  19. N

    Mechanical / progressive / transverse / longitudinal waves

    Correct me if I'm wrong, but based on what I've learnt, there are three kinds of waves: mechanical, transverse progressive and longitudinal progressive. Mechanical - A disturbance makes particles vibrate on the spot Transverse progressive - Energy is carried, and moves perpendicular to the...
  20. jford1906

    Vector fields transverse to the boundary of a manifold

    I'm trying to work up some examples to help me understand this concept. Would the periodic flow on a solid torus be transverse to it's boundary?
  21. A

    Wave function for transverse waves on a rope

    Homework Statement Serway's Physics for Sciencetists and Engineers with Modern Physics, 9th Edition (current), Chapter 16, problem 19:[/B] (a) Write the expression for y as a function of x and t in SI units for a sinusoidal wave traveling along a rope in the negative x direction with the...
  22. L

    How to show that Electric and Magnetic fields are transverse

    Homework Statement This isn't necessarily a problem, but a question I have about a certain step taken in showing that the electric and magnetic fields are transverse. In Jackson, Griffiths, and my professor's written notes, each claims the following. Considering plane wave solutions of the...
  23. daniel rl3

    How can electromagnetic waves be transverse?

    how can the electromagnetic waves be transverse and at the same time the E.M propagates in space (the definition of the transverse wave is that it is a wave in which it's medium particles propagate perpendicular to the direction of wave propagation) what i don't understand is that how can it...
  24. D

    Transverse Doppler Effect for a Moving Star

    Homework Statement A star travels in a direction transverse to the line of observation from Earth, with a speed 0.5c. It also emits light with wavelength ##\lambda_0## in the rest frame of the star. Calculate the wavelength of the light as observed on Earth, and also the angle at which the...
  25. bananabandana

    Longitudinal Wave Equation from Transverse One

    Homework Statement Please see attached. Part ii) Homework EquationsThe Attempt at a Solution So I try to conserve volume as it suggests in the hint. I take the initial volume of the region to be given by: $$ h \times \delta x \times l = (\delta x + \eta) (h+\Psi) l $$ Where l is just some...
  26. U

    Comoving/Proper distance, transverse comoving distance

    I'm utterly confused by co-moving distance, transverse comoving distance and proper distance. Is comoving distance = proper distance? Then what is transverse comoving distance? Here's what I know so far: The FRW metric can either be expressed as ds^2 = c^2dt^2 - a^2(t) \left[ \frac{dr^2}{1-kr^2}...
  27. T

    Calculating Transverse Wave Propagation in a Semi-Infinite Beam

    1. A transversely directed transient force F(t) acts at the free end of a semi-infinite beam. a) Show how displacement, velocity, acceleration and strain at an arbitrary position along the beam can be determined. b) Calculate (MATLAB) the transversal acceleration (or an other quantity) at an...
  28. A

    Speed of a transverse on a pulley

    Homework Statement Hi, I encountered a problem whilst doing problems involving transverse waves. If somebody could give me a pointer I would appreciate it. The question is: "One end of a horizontal rope is attached to a prong of an electrically driven tuning fork that vibrates the rope...
  29. ashtadmir

    Phasor analysis of transverse wave on a string

    The way we have a phasor analysis for a point mass executing un-damped simple SHM, is there something like that for transverse waves on a string. According to me if we fix the position then we can focus on the isolated SHM at that particular position. Is there any way in which I can relate the...
  30. P

    Finite T transverse magnetization of transverse Ising chain

    Homework Statement Consider the transverse field Ising model, with $$H=-J\sum_i\left(\sigma^x_i\sigma^x_{i+1}+g\sigma^z_i\right)$$ I have to calculate the magnetization $$\langle\sigma_z\rangle$$ at finite temperature. Homework EquationsThe Attempt at a Solution I have to say, I'm a bit lost.
  31. Emily_20

    How Does String Tension Affect the Sound of a New Musical Instrument?

    Homework Statement A new musical instrument is fashioned from a metal can of length L and diameter L/10, open at one end, with a string stretched across the diameter of the open end. The string is tensioned such that the 3rd harmonic frequency of the vibrating string matches the fundamental...
  32. S

    Rank Wave Functions by Speed: IV, I, II=III, III

    Homework Statement 8. Four wave functions are given below. Rank them in order of the magnitude of the wave speeds, from least to greatest. I. y(x,t) = 5sin(4x − 20t + 4) II. y(x,t) = 5sin(3x −12t + 5) III. y(x,t) = 5cos(4x + 24t + 6) IV. y(x,t) =14cos(2x − 8t + 3) (A) IV, II, I, III (B) IV =...
  33. Einj

    Longitudinal and transverse phonons velocities

    Hello everyone! Does anyone know how to extract the velocities of longitudinal and transverse phonons starting from their Lagrangian and/or equation of motion? Thanks!
  34. N

    What is the relationship between diameter and mass per length in a steel wire?

    Homework Statement http://puu.sh/frpk5/eae7bce2e3.png Homework Equations v = sqrt(T / (m / L)); The Attempt at a Solution 7.86 g / cm^3 = 7860 kg / m^3 T = v^2 * m/L T = 160 ^ 2 * 7860 which is a huge number I have no idea where the diametre plays a part.
  35. J

    Transverse and longitudinal electric Green function

    Hello everyone: This is what I read in a paper, the spontaneous emission rate written by Fermi's Golden Rule is just related to the local transverse electric field. Dose anyone can explain to me what's the meaning of "transverse mode" here? Why the emission is not related to longitudinal...
  36. jonny23

    Transverse waves oscillation direction

    Homework Statement A transverse wave travels along x-axis . what is direction of oscillation of particles ? Homework EquationsThe Attempt at a Solution I think the answer is xy plane but Wikipedia says its yz plane . Please explain how?
  37. W

    Poisson's ratio for a rigid rod

    I have a conceptual misunderstanding it seems. Poisson's ratio is the ratio of elastic strain deformation of the transverse and longitudinal components. That being said, if I were to induce thermal stress (heating up) to a rod by keeping its ends (longitudinal component) rigid, would there be a...
  38. R

    Frequency, transverse waves, low-pitch strings

    Homework Statement Two identical guitar strings are stretched with the same tension between supports that are not the same distance apart. The fundamental frequency of the higher-pitched string is 380Hz, and the speed of transverse waves in both wires is 200 m/s. How much longer is the...
  39. S

    Standing waves: can two transverse waves colliding have diff. fq, or amplitude?

    Do all standing waves have to have the same frequency and amplitude?
  40. A

    Please help, conceptual motion of a transverse wave on a string question

    I am losing my mind over this, it seems the longer i think about it the further i get from a definitive answer. It started with me trying to understand the variables the would result in a standing wave, ie: what needs to occur, why, and how it occurs. At first i was confused because it seemed...
  41. J

    Transverse velocity of a standing wave

    Homework Statement A standing wave pattern on a string is described by y(x, t) = 0.054 sin (9πx)(cos 72πt), where x and y are in meters and t is in seconds. For x ≥ 0, what is the location of the node with the (a) smallest, (b) second smallest, and (c) third smallest value of x? (d) What is the...
  42. Jackson Lee

    Could transverse wave on a string could be used to produce sound?

    I feel curious about why we pay so much attention on standing waves on the string. Doesn't transverse wave on the string can't be used to produce sound?
  43. D

    What are the correct labels for frequency and displacement in a wave graph?

    Homework Statement my working is as in the photo which is v=f X wavelength = 0.4 X 0.04= 0.16 ... but the ans given is 0.10m/s Homework Equations The Attempt at a Solution
  44. I

    Trying to cancel units out for velocity of transverse wave

    Not a specific question, but I just need help understanding how units cancel out. v = sqrt(force of tension / mass density) Force of tension is in Newtons. Mass density is in kg/m^3 Nt/ (kg/m^3) = (kg*m/s^2)/(kg/m^3) =(I cross multiply here) (kg*m*m^3)/(s^2*kg) kg cancels out...
  45. I

    Max transverse speed on a sinusoidal wave

    Given the below equation of a sinusoidal wave, find the maximum transverse speed of a point on the string. y(x,t) = .00325m * sin(70x -3t) I am brand new to waves and trying to figure out what this question exactly means. The way I see it is that it might be at a max speed when 70x-3t =...
  46. B

    Relativistic Transverse Doppler Effect

    Homework Statement In Minkowski spacetime, two observers, A and B, are moving at uniform speeds u and v, respectively, along different trajectories, each parallel to the y-axis of some inertial frame S. Observer A emits a photon with frequency nu_A that travels in the x-direction in S and is...
  47. P

    Calculating the Equation of a Transverse Wave

    Write the equation of a transverse wave that has a frequency of 75.0 hz, wavelength of .190m,an initial height of .7m and initial transverse velocity of +350m/s traveling in the negative direction.Also sketch at t=0 y(x,t)=Asin(kx+/-ωt+φ) K=33.06 ω=472.4rad/s φ= A= x= y= that's...
  48. S

    Transverse and longitudinal waves

    let me make it clear this is NOT A HOMEWORK.i am just having a doubt. if there is a rope passing through two parallel vertical slits placed close to each other. The rope is fixed and if it's moved up and down perpendicular to its length,transverse waves are generated with vibrations parallel...
  49. L

    Tangential & normal vs radial & transverse

    What is the difference between "tangential and normal components" and "radial and transverse components" ? I mean in both cases, the two components are perpendicular to each other and one of the components causes the particle to rotated around, the other one gives it a speed to rotate with. Is...
  50. M

    Transverse movement of N masses

    Homework Statement . Consider the system of ##N## masses shown in the figure (see picture 1). a) Using the approximation for small angles, write the equation of transverse movement for the n-th particle. b) Propose a solution of the form...
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