Strange Definition and 588 Threads

Baron Strange is a title that has been created several times in the Peerage of England. Two creations, one in 1295 and another in 1326, had only one holder each, upon the death of whom they became extinct. Two of the creations, that of 1299 and that of 1628, are extant. All four baronies of Strange have been created by writ, which means that they can pass through both male and female lines.
Following the passing of the Peerage Act 1963, Elizabeth Frances Philipps, 14th Baroness Strange of the 1299 creation, became the first woman to take her seat in the House of Lords by virtue of an hereditary peerage.

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  1. V

    How Do You Solve a Momentum Conservation Problem When Stuck?

    Homework Statement The problem is shown below. Homework Equations Conservation of momentum? pi = pf ∫Fdt = I ? The Attempt at a Solution This question is really strange. I have started to do this question for many hours and I don't know how to start it. I have tried to list...
  2. PhysicsKid0123

    What in the world? Strange way of calculating

    Okay, so I am trying to figure out how in the world my professor evaluates our final grade for the course and it is a rather strange and confusing method. I need help figuring out how to calculate my grades thus far so I can see what I will need to make on the final. Here's what he has in the...
  3. A

    Factor of friction strange behavior

    Hello everyone, I have a really interesting question here. I am measuring the factor of friction between two different metals. My results are a beat cloudy. When I use Steel - Brass surfaces the factor of friction, μ is being reduced while I am increasing the applied force. In other side, when I...
  4. M

    Shaft Shear Stress with strange shape

    Hello, I am having difficulty solving for the Area and wondering if this is correct.
  5. P

    Strange vectors question very short

    Question http://gyazo.com/17223631de9dfcbcca00f6b3f8758cb9 I'm talking about part ii) if ## a = |\vec{BC}| ## then ## a^2 = (\vec{OC} - \vec{OB})^2 ## is this correct? if we expand a^2 then we get ## a^2 = (\vec{OC})^2 - 2\vec{OC}\vec{OB} + (\vec{OB})^2 ## I don't understand, what is...
  6. R

    Strange Change of Variable of Integration

    I've been following a few derivations for quantities in classical mechanics of rotating systems, and one of the integrals is transformed in a way I've never seen before. For angle theta, angular velocity omega and angular acceleration alpha: Intuitively I can see that they've 'just' swapped...
  7. C

    Java Why Does My Java Graph Show Incorrect E Field Values?

    I am using JAVA to generate a graph of the E field close to a conducting plane. The result which I want to graph is $$E_z (x)= \frac{Q}{2\pi \epsilon_o} \left(\frac{d}{(x^2+d^2)^{3/2}} - \frac{h}{(x^2+h^2)^{3/2}}\right).$$ The code is below: import java.io.Console; import java.io.*; import...
  8. Z

    Derivative of Solid Angle: Lightmann & al. Explained

    hello please see attached snapshot from the book of Ligthmann & al. (problem book in relativity and gravitation). Can somebody please explain the expression for the derivative of the solid angle ? here it is given as dvxdvy where the v's are speeds ! How come this is so ? Thanks,
  9. M

    Have You Ever Experienced Strange Dreams or Nightmares?

    Anyone have really weird or scary dreams?
  10. N

    Strange fluid-mechanics formula made by crazy textbook author

    Please look at the picture I uploaded. Can somebody explain to me how the author of my book can claim that the "vertical component of the ring surface-tension force at the interface in the tube balances the weight of the column of fluid of height h"? This stuff is weird. How can TENSION...
  11. J

    Strange square matrix question

    Homework Statement Show that for a square matrix the (i,j) entry is equlivant to the (j,i) entry in a symmetric matrix. Homework Equations The Attempt at a Solution I just felt this question was weird. They don't give the answers so I'm looking for confirmation. I guess...
  12. N

    Very strange accidental proximity sensor - Explanation wanted

    Hello everybody, I was working on an electronics project, and one of the LEDs (actually I'm using only one) started acting really strange! It will light up when I come close to it, ONLY if I have been out of the room for some time! And that's not all, the period for which it will light...
  13. chisigma

    MHB A very strange statement from Wolfram Alpha....

    The so called 'Moebious Function' is a discrete function defined as... $$\mu(n)= \begin{cases} - 1 &\text{if n has an odd number of prime distinct fators} \\ 0 &\text{if n has one or more prime fractors with exponent greater than one}\\ 1 &\text{if n has an even number of prime distinct...
  14. T

    Why do the digits 12, 45, and 78 form the numbers 3, 9, and 6 in this order?

    I took the prime numbers from this link: http://nl.wikibooks.org/wiki/Wiskunde/Getallen/Lijst_priemgetallen I did take the first three lines I did the following with the numbers The prime 11 = 1+1 = 2 The prime 13 = 1+3 = 4 The prime 17 = 1+7 = 8 and so on This is the result for the...
  15. P

    Strange request from research advisor

    So I was 3rd author of a paper published by our group. I then applied for a fellowship which requested me to describe my research activities. I cited the paper I had my name on. My advisor reviewed the application and told me to put my name first on the fellowship application. She even wrote...
  16. strangerep

    Strange or bizarre covers of Best Songs .

    Strange or bizarre covers of "Best Songs". Occasionally, one hears a rather strange, even bizarre cover, of an older "best song". That's what this thread is for. The idea is that if you find a strange, or incongruous cover of one of the songs in the "Best Songs Ever" thread, you can post it...
  17. J

    Strange Twins Paradox: A Crackpot Physics Mystery | Discover the Solution Here!

    Hi, I did a search for "crackpot physics" and found https://www.physicsforums.com/showthread.php?t=111647 and then this forum. A friend of mine found some strange twins paradox on the net but he can't remember where. Neither of us can figure out the solution, but it must be crackpot...
  18. H

    Top strange bottom charm quark

    material made from up and down quark but we have four more quark what they are do??
  19. tsuwal

    Bowl turns black with heat Strange physicochemical phenomenon

    I have a bowl in my kitchen that turns black when heated (when it goes to the microwave oven or the washing machine). It is driving my crazy so I started to investigate. Here are the results: This is how it looks after cleaning it: After going to the microwave it becomes like this...
  20. L

    Is It Correct to Say Your Guys's?

    I noticed recently that I've been hearing people say something that sounds really clumsy and extremely grammatically incorrect. I've heard this many times before from different different people from different places, including the people on the news, and I heard someone say it last night when I...
  21. K

    A strange electrical circuit - resistance calculation

    Hello. So I've got an electrical circuit on page 4 of this: http://www.iuventa.sk/files/documents/2_olympiady/fo/54.%20rocnik%202012-2013/ulohy%20a%20riesenia/skolske%20kolo/f54skcul13.pdf and I am to calculate the total resistance of the circuit, but I have no idea on how to solve that strange...
  22. J

    Exploring Strange Vector Spaces: Unusual Examples and Constructions

    What are some of the strangest vector spaces you know? I don't know many, but I like defining V over R as 1 tuples. Defining vector addition as field multiplication and scalar multiplication as field exponentiation. That one's always cool. Have any cool vector spaces? Maybe ones not over R but...
  23. Kawakaze

    Hole in reality? Very strange experience I (we) had

    I am a bit wary about posting this, as I am pretty sure what the response would be if I claimed this was paranormal or some other weird stuff. So before we start, I do not believe in ghosts, I do not follow religion, I am very much a believer in the scientific method. I am not claiming to have...
  24. D

    Mathematica Troubleshooting Mathematica: Identifying Strange Behavior & Solutions

    Can someone identity what the issue here is before I throw my computer out the window. By the way, this just worked 10mins ago. I restarted Mathematica and my computer but it now insist z isn't an equation. ClearAll["Global`*"]; me = 5.974*10^(24); mm = 7.348*10^(22); G = 6.67259*10^(-20)...
  25. Jameson

    MHB Is this a typo or misunderstanding?

    Problem: Show that if $P(A_i)=1$ for all $i \ge 1$ then $P(\bigcap_{i=1}^{\infty}A_i)=1$. What is strange about this question is the first part, $P(A_i)=1$ for all $i \ge 1$. If I'm understanding this correctly that's saying that $P(A_1)=1$, $P(A_2)=1$...$P(A_n)=1$, for $n \ge i \ge 1$. This is...
  26. N

    Strange case: Bottle of water freezing

    Any idea what's going on here: http://www.sootoday.com/content/news/full_story.asp?StoryNumber=50683%20 Thanks...
  27. M

    Why do scholarships want these strange essays all the time?

    Why do scholarships want these strange essays all the time? Is it just a deterrent to see who really wants the money? Are these things worth writing in mass? Because I can see applying for 10 scholarships with 10 essays as being very time consuming.
  28. Ivan Seeking

    Strange Conversations: Diagnosing Car Issues

    Every once in awhile you have a conversation with someone that leaves you shaking your head, right? Here is one from today. Me: I'd like to get my car serviced [make and model given, etc] Her: What do you need done? Me: My heater fan is failing intermittantly Her: Does it work at all? I need to...
  29. P

    MHB Strange inequality of infinite series

    Hi everybody, while doing a complex analysis exercise, i came to a strange inequality which i don't know how to interpretate. Suppose you have a sequence $\{a_j\}$ of positive real number. Let $\rho$ a positive real number. The inequality i found after some calculation is...
  30. C

    Optimizing Box Sales for Maximum Profit: A Case Study in Business Strategy

    Hi we had this strange question come up in our advanced class and I'm quite confused as to how to go about figuring this one out. Here is the situation of a question A company sells boxes to its customers but recently the company has been struggling to make a profit. Looking at the plans they...
  31. S

    A Few Numbers With Strange Qualities

    Hello everyone! I'm a 1st grade student in a slovenian high school. Recently, I've became very interested in numbers and math itsself. I was just playing around with a few numbers, when I came across a few that are unique. I was wondering which numbers can loop back to themselfes after this...
  32. Ivan Seeking

    Why Am I Able to Eavesdrop on Calls When Dialing from My Landline?

    Twice now I have called someone from my landline and ended up eavesdropping [briefly] on the person I'm calling. They were on the phone when I called. But instead of getting a busy signal or voicemail, I ended up hearing one side of their ongoing conversation. In one case I knew I could hear the...
  33. L

    Why Is My Bathroom Sink Draining Inconsistently?

    I dumped a bucket of water into my bathroom sink (nevermind why, that's a whole other can of worms), and afterwards my sink has started having problems. It hasn't been draining properly. I'll wash my hands and the water will stay in the sink not draining at all. Then I'll come back later and the...
  34. K

    Strange spider webs all over a field

    It was this summer, in the morning, I was going down the hill to a river, through a sort of meadow, and noticed that everywhere I looked grass was covered with spider webs. I think it was mostly dry-ish tall grass with a... structure capable of supporting a web (don't know what it's called, but...
  35. M

    A strange optics (or math) problem

    Hello everyone, I was reading a physics book and found an exercise. This time I faced with a really strange one! I can't find out what I am doing wrong! I am really good at physics and math, but sometimes I fail as many people do... :smile: The answer in the book says ~0.4m, but I am unable to...
  36. A

    Strange way of solving a linear 2nd order DE

    Homework Statement I was given a DE of the form: \Phi^{''}+(6/\eta)\Phi^{'}=0 where the next step was given as \Phi^{'} \propto \eta^{-6} where the answer came out to be \Phi \propto \eta^{-5} + constant The Attempt at a Solution My attempt was to set \Phi^{'}=x where I would then get...
  37. M

    Complex analysis integration. Strange result

    Hi, Consider the real variable x and some real constant x_{0}. I want to integrate \int_{-\infty}^{\infty}\frac{x_{0}}{x_{0}-x} This blows up when the denominator is zero but we can still take the principal value of the integral. That is, we notice that the integral is an odd function around...
  38. O

    Strange right-arrow symbol ([itex]\mapsto[/itex]) in stochastic calculus.

    What does the right arrow mean in this context: " ...Then the process t \mapsto \int_{0}^t \phi_s dM_s are well-defined continuous local martingales, whose quadratic variations are given by ... " Is this supposed to mean "the process X that is the mapping X: t \mapsto \int_{0}^t \phi_s dM_s"
  39. Z

    Fortran [FORTRAN] Strange Characters in output

    Hi, I am trying to compile a code that should work fine, but I am getting errors and also some odd characters are printing on the screen. This is the output: ENTER INPUT FILE NAME (INCLUDE EXTENSION NAME) blisw.inp YOUR INPUT FILE IS blisw.inp...
  40. Z

    A strange kind of straight line kinematics with uniform acceleration.

    Homework Statement A ball is thrown upward from a building 30 meters tall and misses the edge on its way down, hitting the ground 6 seconds after it was thrown. A) With what speed was it thrown? B) What is its highest height?Homework Equations Vf = Vi + at x = 1/2(Vi + Vf) x = Vi t + 1/2(at^2)...
  41. S

    Strange proposition in calculus

    Homework Statement f(x) is an injective function (1 to 1) and continuous in [a, b], and f(a) < f(b). Show that the range of f is the interval [f(a), f(b)] Homework Equations Intermediate Value Theorem The Attempt at a Solution We are asked to use the intermediate value theorem to...
  42. P

    Strange pigmented things in Subway napkin

    So I was playing with a USB microscope at my desk, and I just viewed a Subway napkin with it. Attached is the picture I saw at ~75x magnification There's dots of all sorts of colors.. yellow, light blue, green, red.. even pink. Does anyone know what the colored dots might be? There's a...
  43. Q

    A strange but reasonable solution for Helmholtz equation

    Hi guys, I have a question when solving 3D Helmholtz equation derived from Maxwell equations. Normally I will get a plane wave solution. But when I used the method of separation variables for the three components Ex Ey and Ez, I found that the vector k in these three can be different as long...
  44. J

    Fortran Solving FORTRAN Strange Issue with Iteration Program

    I have a simple iteration program that does something I can't explain. It has to do with the use of if then statements. I can't see why this change would change the outcome. Here are the 2 examples: This works: if (guess.eq.target) then lp=3 write (*,*)...
  45. D

    Strange little microscopic creatures

    Generally I am on the Physics Forum, but I got my hands on a good microscope a while back and decided to grow some little dudes to look at. My third incubation batch consisted of filtered drinking water and a bit of stuff from my mulch pile. Grew a few interesting little guys and looked them...
  46. M

    Calculus Integration from -10 to 0 Yields a Strange Result

    Calculus Integration from -10 to 0 Yields a Strange Result [RESOLVED] As part of a far greater enquiry, I found myself integrating: \int^{0}_{-10}x^3+2dx So, I began integrating the x^3+2 component, yielding the result of: [\frac{x^4}{4}+2x]^{0}_{-10} Which can then be set out as a...
  47. M

    Mathematica Strange plotting behaviour- Mathematica 8

    I'm confused by Mathematica's behaviour when plotting some functions I've constructed by interpolating functions. I have three graphs (attached). The first is a plot of the family of functions; they're negative, and decreasing to zero. I tried to do a LogLogPlot to look at their behaviour as...
  48. O

    Circumference of a circle (in strange coordinates)

    Homework Statement We are given a function defined by x = uv, y = 1/2 (u^2-v^2)Homework Equations I derived the line element ds^2 = (u^2+v^2) dv^2 + (u^2+v^2) du^2 However I decided this was to unwieldy to derive our circumference where C = 2*{R}\oint_{-R}^{R} ds So I decided to try to...
  49. H

    Medical What is the cause of hiccups and chest pain after eating rice?

    I have a friend who has this strange condition. While eating rice, twice so far, the rice sort of blocks his throat near the centre of his chest. Now, he doesn't have difficulty breathing but he keeps getting tiny hiccups for about 8-15 minutes. The whole while he feels a sort of pain resembling...
  50. leviterande

    Does this strange coil really consume 1700Amps?

    Hi, I have seen a couple of videos on youtube where people simply hook a homemade simple coil of copper wire directly to the House 120v AC. One of them for example hooked a close wound aircore coil with 14 gage wire(01.6mm), 6"(152mm)diameter, about 1" length and 30 turns only.. and...
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