Mystery Definition and 897 Threads

  1. T

    Can Philosophy Solve This Murder Mystery?

    Hey everyone, I was referred to this forum by CeeAnne, and I'm really hoping I can get some help. I have a series of clues for a murder mystery. There are 8 total clues, and all of them seem to point to different people who commited the crime. I'm stumped at the moment. The author of the clues...
  2. J

    Solving the Mystery of the Sealed Room's Temperature

    A colleague has just posed this question and I need some help. There is a sealed room in space that has no external infulences. Inside the room is a fridge. The fridge is powered on and its door is open. The question is, what happens to the temperature of the room ?
  3. T

    Integrating a Complex Integral: Solving the Mystery of the Missing Factor 3

    I'm trying to perform the following integral \pi \int\limits_0^\pi {e^{2x} } \left( {\frac{1}{2} - \frac{1}{2}\cos 2x} \right)dx I split the integral and temporarely ignore the Pi so that I get \frac{1}{2}\int {e^{2x} dx} - \frac{1}{2}\int {e^{2x} \cdot \cos } \left( {2x} \right)dx...
  4. wolram

    Uncovering the Mystery of Troy: Historical Evidence and the Trojan War

    I had little interest in some thing written by Homer 500yrs after the fact, prefering to think the Trojan war a myth, however archealogical evidence is giving some bones to the the myth, i guess we will never know if there was a "wooden horse" or if the characters in Homers story took part in...
  5. TheStatutoryApe

    Mystery Political Call: Is Blocking Numbers Legal?

    Today I received a phone call from one of those automated political telephone campaign recordings. The number was blocked though! That really suprised me. As far as I know businesses of any sort must be listed and can not block their number. I realize that political campaigns, legally...
  6. M

    Finding k to Make Matrix Singular: Solving the Mystery

    Hello everyone I'm suppose to find a k, that will make this matrix singular, well i looked up what that ment, and it means i have to make the determinant 0. So i the matrix is: -3 2 1 -9 8 3 (9+k) 2 0 so i found a random minor, say M13.. so i would have -9 8 (9+k) 2 det = (-9)(2) -...
  7. I

    Has Dark Matter's Mystery Finally Been Solved?

    Hello All, Here is an article we have just published on a very interesting development concerning dark matter: http://www.isracast.com/tech_news/061005_tech.htm Comment are most welcome. Iddo
  8. R

    Understanding Graviton Spin: Unveiling the Mystery of Spin 2

    How do we know that a graviton has to be spin 2?
  9. Ivan Seeking

    Who Was Ishi?

    I thought we might try another variation of "What was it?". http://img345.imageshack.us/img345/603/idbadge8il.jpg
  10. G

    Medical What Causes Deja Vu and How Does It Work?

    Can somebody explain how and why Deja Vu happens?
  11. A

    Unraveling the Mystery of Dark Matter

    Hey guys, what is dark matter?what is it made up of and where is it?can any theory explain this? can string theory explain this? so please frendz help me out of this.
  12. A

    Uncovering the Mystery of Bracelets Claimed to Have "Special Energy"

    I see commercials for these every now and then. It is some metalic braclet that someone where that grants them some special energy or something. I cannot make out what exactly it does because the commercials are so damn vague. The commercials consist of people just saying how great the bracelet...
  13. Ivan Seeking

    Mystery Bulge in Oregon Still Growing

    http://www.livescience.com/forcesofnature/ap_050906_sisters_bulge.html
  14. N

    Solving the Mystery of the 3 Girls' Ages

    I have no idea... A man has three daughters. His friends want to know how many years old the daughters are. The man gives them a hint. HINT #1 The product of their ages is 72. The friends say this is not enough information so the man gives them a second hint. HINT #2 The sum of...
  15. T

    Unraveling the Mystery of Solving Square Roots

    I'm just wondering about something, look at this: \[ \begin{array}{l} \sqrt {3 + x} + \sqrt {2 - x} = 3 \\ \left( {\sqrt {3 + x} } \right)^2 + \left( {\sqrt {2 - x} } \right)^2 = 3^2 \\ 3 + x + 2 - x = 9 \\ 5 = 9 \\ \end{array} \] Obviously something isn't right...
  16. D

    Uncovering the Mystery of Spinning CDs: Why the Edge Isn't Moving Faster

    Please help me answer my son's question: It seems as though the outside edge of a spinning CD is moving faster than the middle of a CD. This can't be true, right? Why is it not true mathematically speaking? Thank you. Donna
  17. F

    Mystery of Large Cloud Bottoms: Why Are They Flat?

    Why are the bottoms of large clouds flat?
  18. JamesU

    Mystery Calls from Quebec & Ontario

    for the past week or so, we've received random calls from quebec. sometimes at midnight. all these calls are are a series of beeps. well, today, I got the same call, except it was from ontario...
  19. P

    Orbit & Orbital: Unraveling the Mystery

    orbit n orbital! hi, what is the difference between Orbit and Orbital? when electron is moving so fast, how can we assume of arranging them in an arbital? I am unable to get the actual concept!
  20. G

    Unravelling the Mystery of Clever Joe's Ticket Numbers!

    I wanted to catch the latest action show with my girlfriend, so I went to buy 2 movie tickets. Walking away from the counter, I bumped into a friend Clever Joe. Clever Joe was interested to know my movie ticket numbers, but I cheekily refused to tell him the answer directly, telling him...
  21. I

    Chuckee Cheese's Mystery Hand Stamps

    Every year when I was a young child my aunt would take my siblings and I to Chuckee Cheese. Earlier today I was reminiscing about the great times when I remembered that everyone would receive a small and invisible stamp upon entering the restaurant. Since they did not charge an admission fee...
  22. Y

    What is SLI? Unravel the Mystery of Gaming PCs

    What is SLI? Many crazy gamers like to make a SLI computer, what is SLI? Do you know?
  23. Ivan Seeking

    What happened to the crew of the Mary Celeste?

    http://www.maryceleste.net/
  24. zoobyshoe

    Hot Rock Mystery Near Santa Barbara - Earthfiles.com

    They haven't figured out what is causing these anomalous hot spots near Santa Barbara: Earthfiles.com Address:http://www.earthfiles.com/news/news.cfm?ID=938&category=Environment
  25. D

    Viewership Numbers: Uncovering the Mystery

    how do they figure out how many people have watched a certain show/event?
  26. G

    Uncovering the Mystery of Who Reads Books

    well, don't know if anyone reads the books... but one way to find out... who reads them eh? well, my girls at camp are doing "wizarding for muggles" which is a harry potter themed two weeks at camp. its been loads of fun. the other day the 6th book came out and we went to Borders in Keene to...
  27. S

    Solving the Mystery of Ideal Gases

    hello,i have question to ask here. :smile: 1. which of the following is not correct for an ideal gas? A. the average kinetic energy of the gas increases with temperature B. the force of repulsion between molecules is proportional to the distance between them C. the gas...
  28. A

    What is the significance of Gann's Square of Nine in market analysis?

    g'day everyone... i was wondering the significance of Mr Gann's square of nine, and how he could just find this "magical" thing and then apply it to the markets... Also, what is the mathematics behind it? I've looked it up on google but it doesn't have anything about either of these...
  29. M

    Solving the Chemistry Mystery: 2NO2 <---> N2O2

    Hi, I know this is a physics/math forum, but I'd really like some help on this equilibrium question. :frown: Consider this reaction: 2NO2 <---> N2O2 If I increase the pressure, then the system will shift to the right, and thus the forward reaction rate will increase. After awhile, a...
  30. B

    Unraveling the Mystery of Dimensional Analysis

    Hello I've been learning the basics of physics over the past few weeks and thought I knew what they meant when they would refer to the dimensions of something for instance if you asked me what are the dimensions of acceleration I'd say 'change in velocity/time'' or 'v2-v1/T' but I came across a...
  31. C

    Mystery of Jupiter's Red Dot: Uncovering the Cause

    why does the red dot on Jupiter i think its like a storm or something or a hurricane but does anybody know why it does not stop? and the cause of it ? thak u craig
  32. R

    Unraveling Spaceman #1's Atomic Pop Gun Mystery

    I have been playing around with an idea for a few years and I am interested in receiving any feedback. I am an amateur, so if there are any issues with my logic, please feel free to straighten out my thoughts. First, imagine 2 astronauts floating in space. The first astronaut has an atomic...
  33. JamesU

    HTML/CSS Unraveling the Mystery of Encrypted HTML

    this is probably in the wrong forum but... I've seen how paypal and other sources encrypt HTML. but how exactly does it work? how does a browser read the encrypted text and know what to display. I must admit that google has failed me on this one :frown:
  34. C

    Where Did the Last Dollar Go in the Hotel Room Puzzle?

    Three guys walk into a hotel. The Bell boy charges them 30 dollars for the room. Each of the thee men pay 10 dollars. The Bell boy gives the money to the manager but is repremanded as the room only costs 25 dollars, he is told to give 5 dollars back. To make things easier he gives each man...
  35. G

    Solving the Mystery: Identifying the Faulty Bag of Balls

    try this, there are eight bags. each bag contains 10 balls. one of those bags contains balls weighing 2 kg(all balls weigh the same). All the other balls weigh 1 kg. you have a weighing machine (not a balance). in one weighing u have to find out which bag contains the faulty balls.
  36. L

    Why is the Sky Dark Despite Countless Stars?

    The stars in the sky are all emitting their own light. The light is reflected for infinitely many times and part of the light energy will be stored in objects. But why is the sky so dark? Why is it not bright?
  37. honestrosewater

    Introducing The NEW AND IMPROVED Mystery X Game

    - The game proceeds by rounds. At the start of each round, X is some mystery individual. A round begins by the latest winner (or me for the first round) attributing one property to X. Ex: X is dead. or X is in my car. or X is a dead president of the USA. - A property must apply to more...
  38. honestrosewater

    How Do You Play the Mystery X Game?

    Monkey see, mokey do. 1st poster: X is green. 2nd poster: X is native to Florida. 3rd poster: X is a reptile. 4th poster: X is not a mammal. This breaks a rule: You must actually narrow the options. 5th poster: X's jaws can exert thousands pounds of pressure per square inch when closing...
  39. P

    Mystery by the Woods: Amber and Kayla's Case

    me and my friend have a case. every night at 12:00 by the woods we see a figure a green light and bouncing leaves. is it the owner or a killer :confused: -amber and kayla o:)
  40. J

    How Do Nitrogen Oxide Compounds Form and What Factors Influence Their Existence?

    I’m puzzled by these two oxides of nitrogen, especially with NO, how do they exist, what favors them? If nitrogen has 1s2 2s2 2 px1 py1 pz1 configuration how or why does he form compound with only one oxygen atom ? Nitrogen has +1 oxidation number here right? So by what kind of connection...
  41. F

    .Unraveling the Mystery of 1=2: A Logarithmic Proof

    everybody seems to know at least one of the "proofs" that 1=2 or 1=-1, etc but i had never seen this one before. check it out: everybody knows that log(1+x) = x-\frac{x^2}{2} + \frac{x^3}{3} - ... plug in x=1 & the series converges & we get log2 = 1 - 1/2 + 1/3 - 1/4 + 1/5 - 1/6 + 1/7 -...
  42. Monique

    Is Your Street Market Portrait Part of a Larger Art Mystery?

    On a street market I bought an old signed portret of a girl, it is really nice and everyone likes it. One day I was looking on the internet and found another portret by the painter, this time a boy: http://x2.putfile.com/6/15805291684.jpg Then I saw the same seller also had the same...
  43. Ivan Seeking

    Loch Ness's other monster mystery is finally solved

    http://news.scotsman.com/scitech.cfm?id=570402005
  44. T

    How should -x^2 be treated in graphing equations?

    I'm graphing equations, and I ran into a snag. I assumed that the graph would be the same for both of the following: y=x^2 and y=-x^2 since any negative number squared is equal to it's absolute value squared. However, the book showed equation 2 as having an inverted graph of equation...
  45. matthyaouw

    Uncovering the Mystery of the Money Pit

    http://www.activemind.com/Mysterious/Topics/OakIsland/ This has been absolutely fascinating to me ever since I heard about it. It really astounds me to see the legnths that someone has gone to in order to protect whatever lies at the bottom of this pit. The engineering is quite astounding...
  46. Lisa!

    Is Dark Matter the Missing Piece in Our Cosmic Puzzle?

    I want to know more about dark matter. Please tell me: Why do scientists think that there should be dark matter?
  47. S

    Skating Shoes and Ice: Uncovering the Mystery

    I want to know why we can easily slide on ice when we wear skating shoes. Originally, I guess it is due to the friction between the metal and the ice. But I think it is not the correct answer. Could anyone help me with this problem. Thanks a lot, Sarah :smile:
  48. A

    Why Is My Consciousness Unique to Me?

    I have a few questions that had been bothering me the past few days. First off, why am I born with this particular consciousness and why am i born this "way" as oppose to an infinite other possibilities? Is it because this is how the chemicals in my brain happened to arranged itself out of all...
  49. A

    Unsolved Mystery - Bill & Pam's Mount Everest Tragedy

    Bill took Pam to Mount Everest in order to go mountain climbing. Unfortunately Pam was found dead after her hook broke while she was climbing up the mountain. Although most of the people were convinced that Pam died of an accident, ONE person was assured that it was a planned murder. Who is that...
  50. B

    The Mystery of Consciousness: Electrical Impulses in the Brain

    how can a seires of electical imoulses in the brain generate consiusness
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