Direction Definition and 999 Threads

One Direction, often shortened to 1D, are an English-Irish pop boy band formed in London, England in 2010. The group are composed of Niall Horan, Liam Payne, Harry Styles and Louis Tomlinson; former member Zayn Malik departed from the group in March 2015. The group signed with Simon Cowell's record label Syco Records after forming and finishing third in the seventh series of the British televised singing competition The X Factor in 2010.
Propelled to global success by social media, One Direction's five albums, Up All Night (2011), Take Me Home (2012), Midnight Memories (2013), Four (2014), and Made in the A.M. (2015), topped charts in most major markets, and generated hit singles including "What Makes You Beautiful" (their first number one on the UK Singles Chart, and the highest debut for a British act on the US Billboard Hot 100 since 1998), "Live While We're Young", "Best Song Ever", "Story of My Life" and "Drag Me Down". After the release of Four, One Direction became the first band in the US Billboard 200 history to have their first four albums debut at number one. Their third album, Midnight Memories, was the best-selling album worldwide of 2013.Considered teen idols, One Direction were often subject to fan hysteria. They embarked on four world tours, two of which were all-stadium. The band's Where We Are Tour, in support of Midnight Memories, was the highest-grossing concert tour in 2014, the highest-grossing tour by a vocal group in history, and the 15th highest-grossing concert tour of all time, grossing $290.2 million (unadjusted for inflation). The band went on hiatus in January 2016, allowing all members to pursue other projects.As of 2020, the band have sold a total of 70 million records worldwide, making them one of the best-selling boy bands of all time. The band have won nearly 200 awards, including seven Brit Awards, four MTV Video Music Awards, six Billboard Music Awards, seven American Music Awards (including Artist of the Year in 2014 and 2015), and 28 Teen Choice Awards. In 2013, they earned an estimated $75 million, becoming the second highest earning celebrity under 30 according to Forbes. As the world's best-selling artist of 2013, the group was named the Global Recording Artist of the Year by the International Federation of the Phonographic Industry. In 2014, Billboard named the band "Artist of the Year". Forbes ranked them as the fourth highest-earning celebrities in the world in 2015, and second in 2016.

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  1. B

    Finding the Direction of Voltage Around a Loop

    When you start going around a loop to try and determine whether to add or subtract each voltage in that loop, how do you decide which? For example see the diagram just above Q7. http://www.facstaff.bucknell.edu/mastascu/eLessonsHTML/Basic/Basic5Kv.html Starting from any point and going...
  2. S

    Direction of magnetic force for magnetic dipoles

    A charged particle in a magnetic field experiences a magnetic force that is perpendicular to it. But is that the case with magnetic dipoles? There was this section in my textbook describing Torque on a Bar magnet in a uniform magnetic field which states that the magnetic force m.B on one pole...
  3. P

    Question relating to direction of magnetic force on moving charge

    Hi I have always been very curious if anybody knows why the magnetic force on a moving charged particle in a magnetic field is always perpendicular to the plane containing the magnetic field's vector and the charged particles velocity vector. Any help would be greatly appreciated. Thanks...
  4. V

    Direction of stresses in torsion

    In the fig. attached below,a circular bar is subjected to torsion. A point is considered on the surface of the bar(denoted by point 1). The shear stresses are shown . Why don't we take one of the stresses in the radial direction??
  5. B

    Direction of Friction for Rolling Motion

    A ball is attached with a string on the side. When the string is pulled up, static friction accelerates the ball forward while the tension rotates the ball. When a ball is placed on a incline with friction, is kinetic friction opposing the motion and giving the ball torque while gravity...
  6. A

    Magnitude of force experienced by the electron and direction of force

    An infinitely long straight conductor 'XY' is carrying a current of 5 Ampere. An electron moving with a speed of 10^5 m/s parallel to the conductor in air from A to B. Calculate the magnitude of force experienced by the electron and direction of force. Pls help. Ur help will be greatly...
  7. I

    Direction of a photon created by bremsstrahlung radiation?

    basically any time i have an arc, i have electrons flowing in the opposite direction to the field gradient. so when the electrons reach the other side, they will be stopped, which will then produce an EM wave. In, class, my professor drew the direction of radiation in a particular direction, but...
  8. P

    Radio/magnetic field: detect direction of antenna

    Hi guys, It's been 15 years since I played with radios, and I've basically forgotten everything. Do you think I'm on the right track with this problem? Do you have any suggestions for the circuit needed for the generator and/or receiving filter described in the last two paragraphs? Or maybe...
  9. B

    Is momentum conserved in y direction ?

    Hi A person standing on a cart throws a ball at an angle to the horizontal Is momentum conserved (i) in x direction if the cart is on a frictionless surface ? (ii) in x direction if cart is on real ground (i.e. with friction) (iii) in y direction My answer is : with a system consisting...
  10. leviterande

    Will this propeller arrangement have a net force in one direction?

    Hi, I am very sorry if I have posted in the wrong forum, I don't know wether to post in classical physics or aerospace engineering. I have been wondering this theoretical thing a lot lately and I can't figure it out, it should have a simple straight answer though so your help is very...
  11. J

    Airplane direction and wind direction

    Homework Statement I have an example problem I would like to solve and unsure how to graphically set up the problem. I would like to derive the answer by the component method of deriving vectors instead of law of sines/cosines. An airplane is trying to keep on a due west course towards an...
  12. C

    What direction is a shrinking cube going + logical problem

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  13. T

    What Direction is Light Observed From a Moving Source.

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  14. O

    How do scientists know the direction of Magnetic dipole moment?

    How they know, how to see the spin of electron>?? Without external field applied, there is random dipole in the paramagnet. for diamagnet, without external field , there will be no dipole exist. Thanks.
  15. S

    How Does Photon Spin Relate to Quantum Mechanics and Bell's Inequalities?

    The below might need lots of corrections/modifications, since spin is a hard concept to grasp and I don't understand it much. We know that: The angular momentum (spin) of a photon does not have an analogy in classical mechanics. however let's use a loose/inaccurate analogy of something that...
  16. N

    Which Sign Describes Phasor Direction in Circular Polarization?

    Homework Statement Hi Circularly polarized light we can describe by a vector v=(1,\pm i), where the sign on the phase i describes which way the phasor turns (CCW or CW). I am confused about what sign belongs to which direction. Is there a neat way to determine this?
  17. B

    Direction of friciton in bicycyle

    I found that direction of friction on ball rolling to east is towards east. And I Know direction of friction in moving bicycle when it is not paddled is backward on both rear and front wheels. Aren't they contradictory?? Plz help me...
  18. D

    Is what I saw - a meteor that was heading in my direction?

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  19. S

    Do a comet's tails ever point in the same direction when in an orbit?

    Homework Statement The problem and its solution are attached as TheProblemAndSolution.jpg. Homework Equations *The (“instantaneous”) dust tail is opposite the direction of motion. *The plasma tail is oppositely directed to the star in question (at all times). The Attempt at a Solution...
  20. marellasunny

    Direction of action of cornering force and lateral force

    I have attached a diagram(figure 1(b)) indicating the directions of the cornering force and lateral force when there is sufficient side-slip angle i.e the vehicle moving direction plane and wheel rotation plane are at a big enough angle a.k.a side-slip angle. From my understanding, the...
  21. L

    How direction of satellite changes

    how the direction of artifical satellites are changing in outer space by controlling from earth? how the reaction force is created at space without any medium .
  22. T

    Photon polarization and direction

    When a photon is produced when an atom raised to excited state return to ground state it's frequency can be calculated. but can we predict the direction and polarization of that photon.
  23. P

    Determining the direction of an induced electric field

    Assuming there is a time varying magnetic field (B) , how to determine the direction of the induced electric field due to B. and to which parameters does it depend?
  24. S

    Measure direction of subpicoamp current

    Is it possible to measure the direction of a current at current magnitudes this small? Or only its magnitude?
  25. U

    Nodal Analysis- direction of currents flow

    The figure shows a transistor with a bias circuit. If Ic=50IB and if VBE=0.7V, find VCE. My question is: The current through 700Ω resistor is H=[0.7+(51IB(250))]/700, then when KCL is applied at the left hand node, the current flowing through the 3kΩ resistor suppose to be (according to...
  26. A

    Direction of normal reactions on a beam

    Homework Statement Problem 10.36 The bar has cross-sectional areaAand modulus of elasticity E. If an axial force F directed toward the right is applied atC, what is the normal stress in the part of the bar to the left ofC? (Strategy: Drawthe free-body diagram of the entire bar and write the...
  27. J

    Projectile explosion velocity and direction of fragments

    Homework Statement A gun fires a shell with the horizontal component of its velocity equal to 200m/s. At the highest point in its flight, the shell explodes into three fragments. Two of these fragments, which have equal mass, fly off with speeds of 300m/s relative to the ground, one along the...
  28. C

    How Do Voltage Arrows Indicate Polarity?

    I see a lot of voltage drops being represented as an arrow. Say a voltage of 20V is represented as an arrow from point a to point b. What is the polarity of and b then? Do the arrows to represent voltage usually go from + to - or from - to +? Thanks for your time.
  29. C

    Current reference direction confusion

    Homework Statement I have two questions. 1) The ends of a length of wire are labeled a and b. If the current i from a to b is negative, are electrons moving toward a or b? 2) We have a circuit element with terminals a and b. The voltage and current from a to b are both positive. If...
  30. S

    Finding the direction and velocity of wind using vectors question

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  31. B

    Spin expectation values in x and y direction

    I have found what I think is the correct answer I just want to check an assumption. The magnetic field points in the +ve z-direction. We are given the initial state vector \left| A \right\rangle_{initial}=\frac{1}{5}\left[ \begin{array}{c}3\\4\end{array} \right] Am I right in thinking that...
  32. L

    Determine new travel direction

    Using the given information, is it possible to solve the new travel direction of the smiley face? To clarify, I am casting a ray using the Möller–Trumbore ray-triangle intersection algorithm.http://http://en.wikipedia.org/wiki/M%C3%B6ller%E2%80%93Trumbore_intersection_algorithm by casting the...
  33. P

    Baseball change of direction Force and Impulse

    A softball of mass .4kg is pitched at a speed of 24 m/sec, the batter hits it back directly at the pitcher at a speed of 20 m/s. The bat acts on the ball for .015 secs. A: What is the impulse imparted on the ball? B: What is the average force exerted by the bat on the ball? pi= mv pi=...
  34. marellasunny

    Driveline dynamics-torque n ang.vel. direction schematic

    Please find attached a schematic showing the relationship between the 4 main components of a automotive driveline. I do not understand the reason for the directions of the torques and angular velocities in the schematic. At first, I thought this had something to do with equations and...
  35. E

    Question in determing the direction of induced emf?

    How to determine the direction of emf induced in an alternator without the need to look at the graph. (i.e) using Lenz's Law or Faraday's Laws of determining the direction? Consider for example the instant when B and dA are perpendicular and no flux is present? Thanks for helping!
  36. Ryan_m_b

    The Anti-Consumer Direction of Xbox One: Thoughts from Gamers

    I'm not a gamer anymore (my xbox broke two years ago and I never replaced it) so I'm a bit out of touch. However I've read a bit about the new xbox one and I have to say I'm distinctly unimpressed by the direction modern consoles are going in. Any thoughts from gamers or otherwise? For me the...
  37. C

    Direction problem; find angle to shortest path with wind

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  38. AakashPandita

    Confusion regarding direction of kinetic friction on inclined plane.

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  39. W

    Why is Friction in the Direction of Velocity in this Problem?

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  40. A

    How is a Newton a Unit of force, doesnt include direction

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  41. A

    Definition of Force confused about how it includes direction

    In early physics, i learned a force was simply a push or pull, talked about as a number of Newtons or pounds, such as "the force is 5lbs". Then you learn that a force is really a vector quantity, having both the direction and strength/force, so it should be "5lbs to the east or 15lbs...
  42. R

    Friction direction of a set of contact points

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  43. O

    E-field polarization in the direction of propagation, TEM, TE, TM

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  44. H

    Why is normal force in the direction of vector normal?

    This might be a bit philosophical, but is this just from experiment? that for a really really smooth surface, people found that the net force on an incline surface is found to be approximately in the direction normal to the incline plane? (approximately because there's no perfectly smooth...
  45. A

    Direction of force acting on a body in uniform circular motion?

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  46. R

    What is the direction of radial velocity using the right-hand rule?

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  47. L

    Direction of Axle Force on Pivoted Disk

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  48. A

    Using relative motion (2D) to get rain speed & direction when running

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  49. A

    How to determine moment axis and direction on a rod in 3d

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  50. T

    Direction of Electron Flow with Real Batteries

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