What is Lost: Definition and 575 Discussions

"Lost!" is a song by the British rock band Coldplay. It was co-produced with Brian Eno and Markus Dravs for the band's fourth album, Viva la Vida or Death and All His Friends. The song was released on 10 November 2008 as the third official single from the album to generally positive critical reviews. A live version was released via download following a performance of the band and Jay-Z at the 2009 Grammy Awards, spurring high digital sales and giving "Lost!" a new peak at number 40 in the United States.
Several official versions of the song exist, including vocalist Chris Martin's separate recording with a piano accompaniment (known as "Lost?") which appears as a B-side for "Violet Hill", and a rap rock version that features Jay-Z (known as "Lost+") which appears on their 2008 EP Prospekt's March. The accompanying music video to the single features a live performance of the band in the United States. Coldplay launched a contest through their website, in which fans submitted self-made music videos. The winning entries were posted on the band's website.
The song was used in the 2010 film The Way, and was also included in NBA 2K14.

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  1. B

    Really,reall need your help-I'm totally lost

    hello The following is really giving me troubles *What is needed for an object to circle around the earth? Let me rephrase this...what conditions need to be met for an Earth's gravity force to act as centripetal force instead of just pulling an object towards its center? *When you...
  2. K

    What is the energy lost to friction?

    The question is: A 15.7 kg block is dragged over a horizontal surface by a 68.7N force acting 17 degrees to the horizontal. The block is displaced 4.65m, and the kinetic friction coefficient is 0.3. What is the energy lost to friction? My thinking is that it would be equal to the negative...
  3. S

    Rotary vane compressor lost motion?

    In a rotary vane compressor, the vanes constantly move in and out. Does the work required to accelerate the vanes radially outward and then inward cancel out or is the kinetic energy of the vanes lost and completely converted to heat?
  4. benorin

    Understanding Hilbert Space to Bilinear and Quadratic Forms

    OK, so I've been there before, Hilbert Space that is. You know, infinite dimensional function space. At least I thought I had, that is until I started reading A Hilbert Space Problem Book by Halmos. So operator theory, right. What's are bilinear, sesquilinear, conjugate linear, ect. -...
  5. L

    Help, any way to recover lost password for Winace?

    Yeah, so I am not too smart as I encrypted a file in Winace and now have forgotten the password for it. Are there any programs out there to get the pass or get through it, or any other way in which to access the files now that I forgot my password? Thanks in advance for any help you can...
  6. V

    I was so lost on this limits question. help please

    I just had a midterm for my calc class and there was this one question that I spent a good 20 minutes on and could not figure out. can someone help me with the solution please? lim x→0 (sin x²)/sin²x I can do it using L'Hopitals rule, but that wasn't allowed :rolleyes:
  7. X

    Solving a Basic Physics Problem: Helping the Lost and Confused!

    Basic Physics...?? Hey Everyone, I just started the course and the first problem I come to, so very confused me! I don't need an answer just a basic response on exactly HOW I can approach this problem because I am just totally blown away by it . Two trains, each having a speed of 30...
  8. M

    Lost all of the signals after stripping, WESTERN BLOTTING

    After I have stripped the filters then one of my filters lost all the signals even the signals of the MW marker. What is wrong? The protocol for stripping is this: Warm the stripping buffer (62,5mM Tris-HCl pH 6.7 and 2% SDS) to 50C and put the filter in it for 30min at Room Temp (RT). Wash...
  9. P

    Totally Lost (Free Fall Distance)

    Hi, its me...AGAIN! You people should start CHARGING for your services! I have a conceptual problem more than just a homework problem this time. It regards free fall distance and the formula applied. Okey dokey...the formula to find out how far an object falls from rest is: d=1/2 gt^2...
  10. A

    Factoring a Quadratic Expression

    sorry this is such a stupid question...but i have been sitting her for half an hour trying to solve it. what does a^2-4a-12 factorise to?
  11. P

    Kinetic Energy Lost in Crumple Zones

    Hi guys, i am working on a problem involving crumple zones, and i was wondering which formula would be best suited to discover the amount of energy lost due to heat and sound, during a collision between a car and a wall
  12. U

    Expanding Universe + Rotation - Lost it somewhere

    I am quite confused... I'll state that up front to make it simple. ^_^ Here is my question, though: Assuming that the universe at some point started from a singularity, err... or even that, assuming that the universe is expanding at a rate that has varied over time... I assume that it's...
  13. B

    Many people seem to view lives lost to terrorism

    Many people seem to view lives lost to terrorism as far more important than lives lost to causes such as obesity and cancer. This poll is to determine out in the open how many deaths by obesity or cancer are enough to equal one death by other causes. The question: How many deaths to cancer...
  14. T

    My sister lost a newt in the house

    My sister lost a newt in the house. Is there anything we could use to track it's body heat? Like goggles or something that would show it's body heat? Is there anything else like that we could do? Just a quesiton. I guess it wouldn't give off that much body heat though I mean I read this...
  15. marcus

    LOST theorem found (important result for LQG)

    http://arxiv.org/abs/gr-qc/0504147 this has been promised for a couple of years now. here at PF we studied the papers leading up to it there was one paper we discussed here by Lewandowski and Okolow (LO) and several by Sahlmann and Thiemann (ST) or by Hanno Sahlmann solo. The four of...
  16. Astronuc

    Lost file recovery utilities - just in case

    Some months ago, I lost (or perhaps Windows lost) about 1.5 GB of data. Actually, the files were still there, but the FAT got hosed. I did not realize it at the time and unfortunately had saved some stuff to the HD. Once I realized what had happened I got a copy of "File Scavenger" -...
  17. Loren Booda

    God: more easily found than lost?

    Why does it seem that more people eventually achieve theism than atheism? Is there any reliable test of religious belief other than the word of the individual? How do we determine the faith of young children regarding whether or not there exists a God?
  18. O

    Is the Pursuit of Perfection Leading to Disillusionment in Modern Life?

    Im extremely intelligent, and the good amount of german in me always had me trying and trying until what i was after was perfect or nearly so. This included school projects, personal projects, just riding a single speed bike very far to hang with friends. I am a freshman now in college...
  19. H

    How Does Friction Impact Mechanical Energy on an Incline?

    A crate of mass 10.0 kg is pulled up a rough incline with an initial speed of 1.50 m/s. The pulling force is 100 N parallel to the incline, which makes an angle of 20 degrees with the horizontal. The coefficient of kinetic friction is 0.400, and the crate is pulled 5.00 m. How much mechanical...
  20. M

    Urgent: Help Needed on Ampere's Law Probolem (Totally Lost)

    The question is: Between two long parallel cylinders of radius "a" and "b" (non-coaxial) and an axal separation of "c", a steady current of "I" flows. (See attachment below) Show that the inner cylinder (radius "a") has a constant magnetic field. Use Ampere's Law. [Hint: 0 = 1 + (-1)]...
  21. maverick280857

    Retrieve Lost "Show Desktop" Icon on Windows 2000

    Hi friends I have this tiny little problem on my Windows 2000 box: the show desktop icon has disappeared/accidentally been deleted from the quicklaunch bar (the taskbar). If you have any idea as to how I can get it back please do let me know. Thanks and cheers Vivek
  22. F

    Collision (kinetic energy lost)

    Ok, I'm really lost here. I guess I do not understand the equations well enough to think on my own in this question :) So the question is as follows: Two simple pendulums of equal length are suspended from the same point. The pendulum bobs are point like masses. m1 > m2. The more massive bob...
  23. T

    What point is the entanglement lost

    Soppuse Alice have two particles A and C that are in a partly entangled state |Y(A,C)>. We also have another person Bob (ofcourse) with whom Alice share a pair of entangled particles D and E in the singlet state. Now suppose Alice make a measurement on her two particles C and D, she...
  24. N

    Lost on rotational motion problems

    We have recently started studying rotational and rolling motion, I've struggled with this more than anything, I am pretty lost on these problems: 1) Consider a thin rod of mass 3.4 kg, length 6.8m, and uniform density. The rod is pivoted at one end on a frictionless horizontal pin. The rod...
  25. wasteofo2

    Ayudame por favor: getting a laptop, totally lost

    I'm going to be getting a laptop soon, and I'm really ignorant about Computers in general, so I'd be really appreciative if I could get some help narrowing down the chioces of what'd be best for me from some of the computer geniuses here. I don't play any sorts of computer games like...
  26. G

    Searching for Lost Money and Wallet in My Room

    So, i got back from vacation today, and my mum helped me bring some stuff up to my room. Hugs, kisses, blah blah, and she slips me a 20. I pocket it. Then I'm sitting at the computer in my room, and I'm like, "hmm, you know, I'm so forgetful, i'd better not leave this 20 in my pocket, elsewise...
  27. T

    Lost Keys: Where Did I Leave Them Last?

    anyone remember where I lost them last time?
  28. T

    Thanks for the present, I almost lost my eye.

    I got a airbrush for my birthday. I've never even held one before so I probably should have read the instructions. I don't have a compressor so I got a can of Propel, which appears to be full of butane. Anyway, I hooked the hose up to the can first, instead of to the airbrush first. As soon as I...
  29. Ivan Seeking

    Long Lost Star Catalog Found in Plain Sight

    http://space.com/scienceastronomy/hipparchus_catalogue_050124.html
  30. kat

    News Paradise Lost: Restoring the Marsh Arabs' Way of Life

    What should--or can--be done about "the environmental crime of the century"? by Christopher Reed http://www.harvardmagazine.com/on-line/010538.html With genocidal intent, Saddam Hussein decimated the Marsh Arabs and their unique environment. Can a place and a people's way of life be...
  31. G

    Exploring the Paradox of Lost Energy in Sound Waves

    This is a simple question, but i can't seem to get my bearings right on it. Consider two speakers at essentially the same point emitting sound waves that are half a cycle out of phase but otherwise identical. Interference dictates that these two waves should cancel out. The resultant wave, now...
  32. J

    Calculate the fraction of power generated that is lost in the lines

    If 30 MW of power at 45kV (rms) arrives at a town from a generator via 4-ohm transmission lines, calculate the fraction of power generated that is lost in the lines. okay I think I'm not completely understanding what I'm supposed to do in this question, or I'm missing something as from my...
  33. A

    Solving Homework Q: Bullet & Block Impact Velocity

    Having missed most of this material, I am finding myself at odds wih the last question of a homework assignment: A bullet of mass 4.0 g moving horizontally with a velocity of 500 m/s strikes a wooden block, initially at rest, on a rough wooden surface. The bullet passes through the block in a...
  34. M

    Help! Lost in Electrons & Protons: Solving My Homework Puzzle

    :blushing: I am getting confused. electrons, protons, which finger goes where in the left hand rule... agh! lol, I am muddling myself all up. i understand the rule (well i hope i do by now as that means the rest of my homework is wrong) but the last question of my h/w is almost killing me...
  35. C

    Solve X'+2X'+(\lambda-\alpha)X=0 | Chris Struggling

    I'm having trouble getting started on this problem... I just really don't understand what to do. Solve X'+2X'+(\lambda-\alpha)X=0, 0<x<1 X(0)=0 X'(1)=0 a. Is \lambda=1+\alpha an eigenvalue? What is the corresponding eigenfunction? b. Find the equation that the other eigenvalues...
  36. S

    I'm so lost Volume and tension?

    If a ball of styrofoam ( p=100kg/m^3) is totally submerged in water. the ball has a mass of 300g. How can i find the volume? and if it is being held by a string how do i find the tension of this string? :rolleyes: I don't know where to start! I've tried using the denisty equation but i still...
  37. K

    Quantum Computing Career Choices: Money, Classes, Colleges, and Languages

    I have a love for building computers...I also have a love for the concepts of physics. I have been thinking about Quantum Computing. I am a strong math student. I am also a Junior in-high school. What would be good Career choices, either in quantum physics in general, or in Quantum...
  38. U

    Really lost, pulling ball through water

    I need to calculate thr force required to pull a copper ball of radius 2cm upwards through a fluid at the costant speed of 9 cm/s. The drag force is porportional to the speed with porportionality constant 0.950 kg/s. Ignoring the buoyant force, I need to caluate the force. I fould out the...
  39. M

    News Kerry Lost: 18yo, Emotionally Fragile - Where Do I Go From Here?

    18 years old, emotionally fragile, and Kerry lost... Should I go jump off a bridge now?
  40. K

    Help! Lost in Beginner Physics Class - Test Tomorrow!

    Well, I avoided this class as long as I could... and now I am stuck with it! I am in a beginner class, but the course is way too fast, and I can't figure out what the teacher is talking about. We are dealing with graphs and 'Straight Line Motion' right now, and I am so lost. I have a test...
  41. M

    Constructing Overflow Detection Circuit with Logic Works

    My teacher assigned this problem for homework and I'm completely lost in what exactly I'm supposed to do. Btw "logic works" is a program we use to implement the circuits. Using Logic Works, construct a circuit to detect overflow in 4-bit signed-2’s complement addition. Connect your circuit...
  42. K

    How to Calculate Force and Acceleration: Elevator, Car, and Sailboat Examples

    A person weighting 0.6kN rides in an elevator that has a downward acceleration of 1.4m/s^2. The acceleration of gravity is 9.8 m/s^2. What is the magnitude of the force of the elevator floor on the person? Answer in units of kN. -- A 1317.9 kg car is coasting along a level road of 33 m/s...
  43. Werdatothewise

    Are you out there somewhere? Who is lost?

    Are you out there somewhere? Who is lost? Are you out there somewhere? I seemed to have misplaced you and a few others... A little shout now and then is good - 'specially for people like me who have this need to keep track of others. Now! Where is everyone else, and what have you all...
  44. C

    Solve Math Word Problems: 2 Examples & Help Appreciated

    I am totally lost! :cry: I am taking this math class and we are now doing these statics problems and I have no clue what is going on, as I have never taken a physics class. I was hoping if someone could just explain on how I can put these two word problems into a equation because I have no...
  45. M

    Projectile Motion - A little Lost

    I've been trying to figure this problem out and I'm a little confused. Here is the problem. A quarterback is set up to throw the football to a receiver who is running with a constant velocity Vr directly away from the quarterback and is now a distance D away from the quarterback. The...
  46. 7

    Where Does Lost Energy Go When Lifting and Lowering Objects?

    When we lift a heavy box to a higher position, energy from our bodies(chemical energy) is lost and there is energy gain(potential energy) in the box. After, when we release the box from that position to the original one(lower position), there is P.E. lost in the box. So where does lost energy...
  47. Andre

    Update on the lost Cuban City

    Update on the lost Cuban "City" We have discussed the http://www.medioambiente.cu/museo/exmari.htm, discovered by Paulina Zelitski and Paul Weinzweig a few times here. Many near pefect symmetrical stone structures on the bottom of the sea, resembling old Mexican inca like structures Is it...
  48. BobG

    I lost my calculator batteries in a flood .

    I lost my calculator batteries in a flood... What's this equal? \left(\frac{256^{16}-1}{256^{16}}\right)^{256^{16}} a) 2.178 b) 1.000 c) .3679 d) 0.000
  49. P

    Lost in Cyberspace: Can't Find HyperSpace Posts

    OK, I give up. Categories seem to have been moved. I cannot find where the postings from hyperspace in cyberspace have been moved to. Can someone clue me in?
  50. S

    Totally lost on magnetic flux question

    A uniform magnetic field of 0.0300T points vertically upward. Find the magnitude of the magnetic flux through each of the 5 sides of the open topped rectangular box, given the dimensions of the box are, length = 0.335m width = 0.12m, and Height = .10m. Find Wb through long side, short side...
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