What is Weird: Definition and 482 Discussions

Psychology is the science of mind and behavior. Psychology includes the study of conscious and unconscious phenomena, as well as feelings and thought. It is an academic discipline of immense scope. Psychologists also seek an understanding of the emergent properties of brains, linking the discipline to neuroscience. As a social science, psychologists aim to understand the behavior of individuals and groups.A professional practitioner or researcher involved in the discipline is called a psychologist. Some psychologists can be classified as a social, behavioral, or cognitive scientists. Some psychologists attempt to understand the role of mental functions in individual and social behavior. Others explore the physiological and biological processes that underlie cognitive functions and behaviors.
Psychologists explore behavior and mental processes, including perception, cognition, attention, emotion, intelligence, subjective experiences, motivation, brain functioning, and personality. Psychologists' interests extend to interpersonal relationships, psychological resilience, family resilience, and other areas within social psychology. Psychologists also consider the unconscious mind. Research psychologists employ empirical methods to infer causal and correlational relationships between psychosocial variables. Some, but not all, clinical and counseling psychologists rely on symbolic interpretation.
While psychological knowledge is often applied to the assessment and treatment of mental health problems, it is also directed towards understanding and solving problems in several spheres of human activity. By many accounts, psychology ultimately aims to benefit society. Many psychologists are involved in some kind of therapeutic role, practicing in clinical, counseling, or school settings. Other psychologists conduct scientific research on a wide range of topics related to mental processes and behavior. Typically the latter group of psychologists work in academic settings (e.g., universities, medical schools, hospitals). Another group of psychologists is employed in industrial and organizational settings. Yet others are involved in work on human development, aging, sports, health, forensics, and the media.

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  1. C

    Weird PMT Signal: Help Solve Distortion

    Right now I am working with: PMT: Hamamatsu R928/0115/0381 PMT Power Supply: McPherson PMT Power Supply Model # 7640 O-Scope: Tektronix TDS 5104 Oscilloscope PMT Housing: PhotoCool Housing PMT Housing Power Supply: PhotoCool Power Supply Input: 200 mW 532 nm ND:YAG laser I have...
  2. B

    How can torque on the rotating wheel be calculated using the given parameters?

    FOR PICTURE of CIRCUIT: community.webshots.com/photo/2479536900103460081IWuFAY A wheel consiting of a large number of thin conducting spokes is free to rotate about its axle. The brush makes contact one spoke at a time. There is a uniform B field pointing into the page. The wheel is...
  3. S

    Weird Plate Capacitor: Calculating Capacitance

    Homework Statement I have a capacitor which i just like a plate capacitor, but instead of the upper electrode being a plate it is a point charge Q. the lower plate is held at a fixed potential V=0. I am supposed to calculate the capacitance of the capacitor. The Attempt at a...
  4. P

    Equation for Parabola with Given Focus and Width: Homework Problem

    Homework Statement A parabolic communications antenna has a focus 6 feet above its vertex. Write an equation for the parabola and find the width of the antenna 9 feet from the vertex. Locate the origin strategically. Homework Equations y= x^2 (parent equation for parabola) The...
  5. I

    Weird question: ideas of a physics' project

    Hi! As you can see, I didn't use the template, but that is because this is a different kind of question. I need to think of a project relating to physics for my final project in Honor's Physics. She (the teacher) would like an idea by Monday and the sooner I can start researching, the better...
  6. M

    Is There a Generalization of the Gaussian Integral for Quartic and Higher Terms?

    if we had that A_{i,j,k,l} is a set of number could we obtain for the integral \int_{-\infty}^{\infty} dV e^{-A_{i,j,k,l}x^{i}x^{j}x^{k}x^{l}} = C |A_{i,j,k,l}|^{-b} here C and b are real constant, i am looking for a quartic or similar analogue to Gaussian integral, but can be defined as...
  7. C

    Medical What could be causing small bumps on my skin every morning?

    why is that sometimes I get small bumps on my knee and leg every time I wakeup every morning, my bed are all covered in foam so its impossible to bump my feet into it. all bumps occurred on different locations and sometimes happened every morning more often. kindly explain this tnks.
  8. K

    Weird Issue with the Chain Rule

    Homework Statement I'm working on a quick problem regarding a presentation that I'm giving, but I've come across an issue that I can't seem to resolve. Namely \displaystyle \left. \frac{d}{dt} \right|_{t=0} f(\phi^p (t+t_0) ) = \left( \phi^p \right) ^\prime (t_0) f Does anybody see...
  9. B

    How Does a Horse's Size Influence Its Maximum Speed?

    Homework Statement Estimate the maximum speed of a horse. Assume that a horse is 1.8 m tall and .5 m wide. Homework Equations The Attempt at a Solution This problem is from the work & energy chapter in my book. However, I can't figure out the relevance of the dimensions of the...
  10. O

    Conversation of energy / momentum problem weird circumstance in equations

    Homework Statement a projectile of mass M explodes into three fragments while in flight at velocity v. one fragment of mass M/2 travels in the original direction, one of mass 3M/10 comes to rest and the third fragment of mass M/5 travels in the opposite direction. The energy released in the...
  11. D

    Weird Laser Effects: Exploring Interference & Reflection

    So I have a couple of cheap <5mw red laser modules. And I also have mirrors. And I'm bored. You can guess what happens next (profit). Some really strange effects that I'd love to know the origin of: 1.) The speckle effect from the laser beams - it doesn't actually matter where your eyes are...
  12. X

    Static Equlibrium involving a weird object

    Homework Statement A uniform beam of weight w is inclined at an angle \theta to the horizontal with its upper end supported by a horizontal rope tied to a wall and its lower end resting on a rough floor. (a) If the coefficient of static friction between the beam and floor is \mu_s, determine...
  13. C

    Unusual Chemical Reaction: Potassium Permanganate and Alcohol

    When I was 15, I dropped into a lab in a big city hospital.. The fellow there was doing illegal isotope experiments there... He took me under his wing to teach me some of the strange chemistry things he new... The one that still puzzles me today is his silly little acid/alcohol/p...
  14. J

    Simple Vector Sum Problem But My Calculated Angles Weird

    [SOLVED] Simple Vector Sum Problem... But My Calculated Angles Weird... Homework Statement A car travels 210 m [N32°E] and then travels 37 m [S51°W]. How far is the car from the origin? Homework Equations Cosine Law. C^2=A^2+B^2-2(A)(B)(CosC) Sine Law. C/CosC=A/CosA The...
  15. E

    Calculating the Average Current of a Rotating Charge q | Insulating String

    [SOLVED] really weird one Homework Statement A small sphere that carries a charge q is whirled in a circle at the end of an insulating string. the angular frequencyy of rotation is omega [w]. What average current does this rotating charge represent? Homework Equations I = dQ/dt; w =...
  16. D

    Simple problem in Mechanics, weird differential equation

    There is a problem I couldn't figure out , it says : it says that a particle of mass m moves along a straight line and is acted on by a retarding force (one always directed against the motion) F=b*exp(a*v(t)), b, a are constants and v is the velocity. At t=0 it is moving with velocity V...
  17. S

    Why Does My Cursor Delete Two Characters at a Time?

    Hi, I don't know the technical term for this, but you know when you type, the line thing at the end of your text blinks on and off? Whenever I'm typing on an internet page (email, search engine, etc), instead of a line that blinks on and off, there are two highlighted (black) spaces, and...
  18. B

    Can a cylinder float up through a hole?

    There is a container full of water with a hole in the bottom. The hole is sealed and fits water-tight around an enclosed cylinder (like a straw sealed at both ends). The cylinder still moves easily vertically and it is inserted in such a way that it protrudes out both the top and bottom of the...
  19. I

    Can You Calculate the Stopping Distance at a Traffic Light?

    Homework Statement (3) A motorist is approaching a green traffic light with speed v_0 when the light turns to amber. (a) If his reaction time is \tau, during which he makes his decision to stop and applies his foot to the brake, and if the maximum braking deceleration is a, what is the minimum...
  20. A

    Cellular respiration weird question.

    Humans oxidize glucose in the presence of oxygen. For each mole of glucose, 686 Kcal are realeased. This is true whether the glucose is oxidized by cellular respiration or burned in air. So why don't humans spontaneusly combust?
  21. Y

    Weird looking version of angular velocity

    Hi there, It is common that angular velocity = radius * rate of change of degree over time, But I read this somewhere, it reads angular vel = normal vector * rate of change of normal vector over time, Can anyone please explain the correlation? Thank you.
  22. W

    Force and Newton's 2nd, weird lab results

    Homework Statement Not really a problem, but an analysis question on a lab that I can't figure out. We did an experiment in which we placed a spring scale on a table and attached strings to both sides. The strings went over pulleys and we hung various masses from them. My question is what...
  23. S

    Circuit simulation with NMOS behaves weird

    I have got this circuit. http://img225.imageshack.us/img225/4369/circuithf1.jpg Threshold voltage of the n-channel MOSFET is 2Volts. RVAR varies from 0.5k\Omega to 2k\Omega. When I simulate the circuit, I get: http://img132.imageshack.us/img132/2779/simulationuw4.jpg It should go into...
  24. nicksauce

    Can Fourier Series Solve a Discontinuous Heat Problem on a One-Dimensional Rod?

    The question is: Write a short paragraph that physical problem modeled by the equation: \frac{\partial{U}}{\partial{t}} = \frac{1}{4}\frac{\partial^2{U}}{\partial^2{x}} -12[U - 8x] Subject to IC: U(x,0) = 3x BCs: U(0,t) =0, u(2,t) = 2t Okay so clearly, the physical problem is...
  25. C

    Solve Weird Depth Problem: Conical Tank Water Flow Rate

    I've looked everywhere to try to solve this problem and I can't find anything. It is: A conical tank (with vertex down) is 10 feet across the top and 12 feet deep. If water is flowing into the tank at a rateof 10 cubic feet per minute, find the rate of change of the depth of the water when...
  26. F

    Limit of x^2/(1-cosx) as x→0 - Solution without LH Rule

    Homework Statement Find the limit as x approaches 0 of x^2/(1-cosx). Homework Equations None. The Attempt at a Solution I know from L'Hopital's rule that the limit is 2, but I'm not supposed to use L'Hopital's rule to calculate it. What else can I do here?
  27. Evo

    What unusual kitchenware do you collect?

    Zz's food and wine category and my move reminded me of my bizarre culinary collection. I collect bizarre kitchenware such as a soup tureen that looks like a boar's head, complete with tusks, a chafing dish that looks like a duck, a pewter gravy boat that looks like a rabbit and sits on a...
  28. tony873004

    Why do non-integer powers fail in graphing x^x?

    I wrote my own graphing software, and I thought it had a bug in it, because when I graphed x^x, the curve starts out at (1,1), dips down a little, then rises again to pass through (1,1) as expected, before traveling to the wild blue yonder. It seemed like this function has no range in the...
  29. EnumaElish

    Weird question on abnormal human anatomy (hoping it not being the case)

    Over the long weekend I was touring a museum whence I glanced upon a thirtysomething woman and had to look again. There was a tiny arm coming out of her chest. I thought she must be carrying her tiny baby in a receiver (?) shawl wrapped around her, but did not inquire personally. I might have...
  30. P

    Why doesn't Taylor expansion work for integrating to infinity?

    Consider integrating sin(t)/t from 0 to infinity via the Taylor expansion method. If you do that then you will get infinite terms in the series which clearly is wrong as that integral equals pi/2. Can anyone tell me why using the Taylor expansion method dosen't work? It always dosen't work when...
  31. kach22i

    Watch Videos of Dr. MegaVolt - Weird Science

    Have a strange science based video? Post it here and enjoy the show. Dr. MegaVolt.......a Tesla freak X's 10. More at his site under appearances: http://www.drmegavolt.com/index.html
  32. L

    A weird absolute value problem

    Please help me out here with this problem: 37. Express the function f(x)=l x l + l x-2 l without using absolute value signs. Okay, I've took a sneak peak at the answer key and it is given in kinda of like piece-wise notation where they have 3 equations and different intervals of x for...
  33. phoenixthoth

    Weird relation: its graph is the formula

    I thought this was really odd. I wonder if they found it by accident or were trying to do this... http://mathworld.wolfram.com/TuppersSelf-ReferentialFormula.html Apparently, the graph of this formula is the formula: graph of formula: the formula...
  34. C

    Weird mechanical advantage/energy transfer problem

    Homework Statement There is an engineer with a mass of 100kg standing on a platform raised 10m above ground. On the ground is a platform that holds a box with mass m. Connecting the two platforms is a machine of unknown design (possibly pulleys) that generates a mechanical advantage of 2. When...
  35. A

    Math Mystery: Why Is \sqrt{2}^{4} Not 4?

    Isn't \sqrt{2}^{4} equal to 4?? How come when I plug this into my calculator it gives me the number:3.999999999996 , which is very close to 4 but isn't?? Is there something wrong with the settings of my calculator?
  36. moe darklight

    Weird question: human ability to program DNA

    are we anywhere near understanding DNA well enough to "program" a new species. say, programing a cell to grow into an animal with specific traits. I know similar things are done to a certain extent with genetically modified foods and animals (or on mosquitoes and flies); I know we know enough...
  37. V

    Solving Error: Cannot Copy File - Windows XP SP2

    Huhuhu, this is just sssssoooooo weird... :cry: My friend asked me to copy, and send him some guitar scores. And I agreed. I also told him to give me a USB, since mine is only 512 MB, and the file is approximately 700 MB. So he gave me a 2GB one. I plug it to my computer. Right click on the...
  38. N

    Discover the Latest Weird and Interesting News from the World of Physics!

    Hi all! I'd like to know what's the latest weird, interesting or simply "ear-catching" news you've heard about the physics world lately! Feel free to share! =)
  39. D

    How did this happen? Weird picture

    How did this happen!? Weird picture! So yeah... I was at the bowling alley and someone took this picture: http://a37.ac-images.myspacecdn.com/images01/38/l_81ee85d7d2e5ca216a96f823bb524cfc.jpg" This is NOT photoshopped. I could see an explanation if it were blurred, but the edges of...
  40. W

    Solving infinity limit, something weird.

    Homework Statement This question asks you to evaluate the limit of the following function lim sqrt(9x^2-3x) -3x x-> infinity I did it using 2 methods: 1) lim sqrt(9x^2-3x) -3x x-> infinity = lim x(sqrt(9-3/x)) -3x...
  41. F

    Weird logic-design exam questions

    Homework Statement Here are three problems from an exam and I'm not sure i understand the wording... almost like we're supposed to get these wrong. 4. The Boolean expression of the OR between minterm 6 and minterm 7 using variables ABC (A being the MSB and C being the LSB) is {(A)} AB...
  42. N

    Mathematica Debugging Weird Mathematica Behavior

    Hi all, I have attached a notebook which I am doing a calculation in. For some reason, Mathematica is acting inconsistently. When I run the calculation for the first time, it usually doesn't work. By that I mean I get the output that you can see in the notebook attached. You can that...
  43. F

    2nd order DEQ: weird solution method

    Homework Statement Suppose that u(t) is a solution to y'' + p(t)y' + q(t)y = 0 Suppose a second solution has the form y(t) = m(t)u(t) where m(t) is an unknown function of t. Derive a first order linear differential equation for m'(t). Suppose y(t) = e^(2t). Use the method...
  44. A

    Capacitance and Electrical Energy, Weird Question

    Homework Statement To repair a power supply for a stereo amplifier, an electronics technician needs a 100 micro-F capacitor capable of withstanding a potential difference of 90V between its plates. The only available supply is a box of five 100 micro-F capacitors, each having a maximum voltage...
  45. E

    Is My Logarithm Solution Correct?

    Homework Statement I got this problem in an exam today, and I think I may have the right answer but I don't understand how I'm supposed to know if I do. It's very confusing. Homework Equations If logb (9) = 1.5 and logb (2) = 0.5 what is logb (5throot(36))? The Attempt at a Solution...
  46. D

    What Time Does a Projectile Make a 30° Angle with the Horizontal?

    Hi i really do not know how to do this. any help is much appreciated. thanks! Homework Statement A projectile is shot out at 45° with respect to the horizon with an initial velocity of Vx = Vy = Vxy. When is the earliest time, t, that the velocity vector makes an angle of 30° with respect to...
  47. D

    Calculating Speed of Center of Mass for Rotating Disk on Pivot

    Homework Statement A uniform solid disk of radius (r) 6.71 m and mass (m) 38 kg is free to rotate on a frictionless pivot through a point on its rim. If facing the disk, the pivot is on the left side. The disk is then released. What is the speed of the center of mass when the disk reaches a...
  48. moe darklight

    Increasing/decreasing complexity (just a weird theory)

    It seems to be a law of nature that all things consist of smaller, less complex things: fundamental particles are (comparatively) simple. They react to form atoms, atoms form molecules, molecules form different chemicals, these chemicals also reach with each other to form cells, minerals, etc...
  49. C

    What is the Period of Revolution for a Triple Star System?

    A triple star system consists of two stars each of mass m revoling in the same circular orbit of radius r around a central star of mass M. The two orbiting stars are always at opposite ends of a diameter of the orbit. Derive an expression for the period of the revolution of the stars. I don't...
  50. Q

    How Do You Calculate the Mass of the Sun from Mars' Orbital Motion?

    Mars travels around the sun in 1.88 (earth) years, in an approximately circular orbit with radius 2.28 x 10^8 kilometers determine a)orbital speed of Mars relative to sun b)mass of the sun.. for part a) i did v= 2(pi)(r)/ T which i got 2(3.14)(2.28x10^11 meters)/ 5.93 x10^7 seconds...
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