What is Pictures: Definition and 172 Discussions

An image (from Latin: imago) is an artifact that depicts visual perception, such as a photograph or other two-dimensional picture, that resembles a subject—usually a physical object—and thus provides a depiction of it. In the context of signal processing, an image is a distributed amplitude of color(s). A pictorial script is a writing system that employs images as symbols for various semantic entities, rather than the abstract signs used by alphabets.

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  1. 6

    Display Pictures: I See What You Did There!

    I see what you did there ...
  2. micromass

    News Funny pictures of politics and world affairs

    Here's a thread to post some funny and sarcastic pictures of politicians and world events. Let's just keep it tasteful and not start any political argument. The pictures are just for fun, so try to laugh even if you disagree with it :smile:
  3. N

    What's wrong with these pictures?

    It took me a while to finally see where the following scenario is wrong. I found it a "fun one" to consider.Scenario Observer A moving at 0.5c compared to observer B. Observer A sends out an idealized light pulse in a perfect circle. Perhaps by using a single light source & through...
  4. F

    Real pictures of black hole eating a star?

    I keep finding articles about the black hole that scientists at Berkeley found eating a star, live. I want to see the photos or video, or what the founders themselves looked at to deduce it was a black hole eating a star. Google is dead to me. Can't find crap.
  5. V

    Transferring Doctuments and Pictures via Flashdrive

    Hello Physics Forums! I just got a new laptop, and I'm trying to transfer a lot of my word documents, powerpoints, spreadsheets and other documents to my new computer through an old flash drive. My concern is that I will accidentally transfer a virus in the process. I replaced my old...
  6. V

    Calculators Using the TI-84 Plus Silver Edition's Buttons as Pictures in MS Word

    When some people explain how to do a certain calculation through a presentation, I sometimes see these presentations use the buttons necessary to press as pictures. For example, I've seen presentations tell me how to graph certain functions and, instead of saying press "Y=," the presentation...
  7. V

    How realistic are the colors that we see in pictures of galaxies/nebulas?

    In pictures that we find of galaxies and nebulas there are usually very bright colors in them. For example, if you look at a picture of the horsehead nebula you typically see pink, purple, red, orange and blue. Are those a real representation of how the nebula would appear to the naked eye...
  8. B

    How long does it take for a cut tree to fall flat to the ground?

    I am trying to work out the time taken for a tree that has been cut at its base to fall flat to the ground. More detailed picture here ...http://i.imgur.com/RYS3D.png" The tree is not experiencing wind resistance, and is pivoting from the centre of the trees base. the tree also starts at zero...
  9. Borek

    Summer pictures, or Boreks in Croatia (and Hungary)

    As promised long ago - pictures from Croatia (and a few from Hungary). There were three parts of the trip. Marzena told me she is not going to sleep in the car or bushes in random places, and that was part of my plan. So I bought her a plane ticket to Split, promised to collect her from the...
  10. I

    A good physics book with pictures to describe.

    Hi all folks. Do any know a good book that describes physics with pictures? I want a standard book, not university, but for the general people. Because now I prepare before I enter the university if I pass the math and physics exam from high school.
  11. G

    Falling object with random pictures taken

    Suppose I drop a rock off a cliff at height h. As it falls, I snap a million photographs at random intervals. On each picture I measure the distance the rock has fallen. Ignoring air resistance: x(t) = 1/2 g t^2 v(t) = g t total flight time = T = Sqrt[ 2 h/g] My confusion is that in...
  12. Z

    What are self-similar pictures of bifurcations and fractals ?

    What are "self-similar pictures of bifurcations and fractals"? The context is: 1.5 Deterministic Chaos Chaos brings to mind many things: butterflies in South America changing world weather; self-similar pictures of bifurcations and fractals; and an inability to describe irregular...
  13. U

    Java Pictures not showing up (Java)

    The error: "Exception in thread "main" java.lang.NullPointerException at javax.swing.ImageIcon.<init>(ImageIcon.java:167) at Buttons.<init>(Windows.java:12) at Buttons.main(Windows.java:38) Java Result: 1" The Windows.java code: _______________________________________ import...
  14. T

    Confused with the principles in Vector Moments - with Pictures

    Please use zoom function for better view. I'd highly appreciate it if you could also add a diagram on your explanation. Thanks!
  15. N

    Identifying the items in the pictures

    Hi, Can anyone pls help me with identifying the items in the pictures, with the following list of options: A) An occupancy sensor B) A smoke detector C) A light level sensor D) A speaker E) A timer control F) A sprinkler head G) A thermal sensor H) An emergency light Thankyou. Nick
  16. Andre

    Thunderstorm pictures and hot pixels

    So the other evening, the last at Mont Cru, nature finally regaled me with a beautiful thunderstorm. So I set myself up and shot lots of 30 sec exposures during an hour of awesome display. Many pixs were useless, between nothing captured and a complete white out, but some dozen seemed very nice...
  17. K

    Software that describes light intensities of pictures

    Hello, I am looking for a software that will allow me to look at the intensity of white light on a picture and display it like a histogram. Any help would be appreciated. Thanks,
  18. G

    My Rs.50 DIY Pulsejet Engine - See Video & Pictures

    this is a small pulsejet designed by me..it produces around 2pounds thrust..This is the cheapest pulsejet engine you could make it costs around Rs.50..i will post the video tomorrow because i forgot to take my cellphone with me..But here is the engine pictures. here is the plan.. here is the...
  19. J

    Pictures of abstractions behind mathematical equations?

    I need to understand physics (and other) concepts but I'm having trouble visualizing what the equations mean. One example would be an applied math thing - I want to understand what about electromagnetism exactly the Maxwell equations are describing exactly so I can gain insight into what math...
  20. Evo

    What are some recent pictures of Chilean volcano eruptions?

    This is from yesterday's volcano activity. http://news.yahoo.com/nphotos/Volcano-erupts-Chile/ss/events/wl/060611chilevolcano
  21. S

    Random particle movement (with pictures)

    I'm trying to understand the movement of particles due to quantum mechanics. I made this image. It is a magical receptor box. Every time an H atom strikes a receptor, the letter associated with that receptor shows up as a read out on a computer. For example if a H atom hits the top receptor, it...
  22. Y

    Was Halton Arp hard done by? Need some clarification. some pictures

    Some time ago Halton Arp made a prediction that big red shifted galaxies are connected to smaller red shifted galaxies. Does anybody know what exactly was his prediction. Anyway so NASA and The Hubble Heritage Team tried to discredit him using this image: But look what happens when...
  23. L

    Pictures of electron etc orbits

    Pictures of "electron etc orbits" http://www.sciencephoto.com/images/download_lo_res.html?id=651380013 Are they photographs and the "orbits" happened at some distance form the lens? Then, how much is that distance? What are the actual sizes of these shapings? I.e. how many milimetres is...
  24. L

    Why do guys like to look at pictures more than women?

    This tendency has always baffled me-- or at least, it is a tendency I have observed-- that men are very interested in looking at pictures of women or videos of women and most women have little to no interest in pictures or videos of men. Is this something others have also observed, or has my...
  25. O

    Funny Physics Pictures - Share Yours!

    I found this picture of Einstein while trolling the web and I thought it was quite funny. Anyone has any funny physics pictures to share as well?
  26. R

    Find plane angle from pictures

    Hi all. I need to get some information about plane position and camera position from a pictures. I have i plane with 3 points (red,green,blue) and then theyre coordinates inside the image. Using circle and string i was able to get the y rotation of the plane where the points are on (the...
  27. B

    Can I see the Earth in X-rays?

    Where can I find pictures of the Earth taken from different frequences of light other than the visible spectrum? There has to be X ray pics of the planet.
  28. K

    Wow Anyone seen these pictures? Could they explain dark matter?

    http://www.nasa.gov/images/content/498884main_DF3_Fermi_bubble_art_labels.jpg http://www.nasa.gov/mission_pages/GLAST/news/new-structure.html Could these structures account for the dark matter, or is the density profile inconsistent with two big blobs of matter/energy on both sides of the...
  29. Andre

    Comet Hartley 2 Flyby: Incredible Images from NASA's Deep Impact Probe

    ..are here Amazing (Credit NASA)
  30. K

    Stargazing Pictures I took at a 2.5m telescope in the Canary Islands

    Hi there, physics nerds! I'm studying astrophysics in Copenhagen, and I had the opportunity to visit a telescope in the Canary Islands (just off the west coast of Africa). It's called the Nordic Optical Telescope, and I was there for a week in August. Among other things, I managed to get 4...
  31. somasimple

    What are the common atomic radii used for chemical pictures?

    Hi all, What are the common atomic radii that are used for drawing chemical pictures? Is it the ionic or calculated or? Thanks.
  32. W

    Old Photos & Deep Psychology: Hilbert's Wiki Article

    I was reading Wiki's article on D. Hilbert, http://en.wikipedia.org/wiki/Hilbert_space, and couldn't help but smile at that photo of Hilbert with the funny hat. Is it for amusing those who can't make out head or tail of the Wiki article? What's the point of having black and white pictures of...
  33. A

    Probability amplitude in Heisenberg e Schrodinger pictures

    Hi, this is my question: suppose that at time t' our system is in the state | \psi(t')\rangle The probability for the system to be in the state | \phi\rangle at the time t'' is the norm of \langle \phi| \psi(t'')\rangle This in the Schrodinger picture. But how i can write the same thing in...
  34. H

    News Pictures of the damage from the BP oil spill

    I think I read a post on this forum about the lack of pictures of damage from the BP oil spill. I found this site today and wanted to share it. Edit by Evo: Sorry, that's not an approriate link. It contains misinformation worded to create fear mongering.
  35. P

    Equipotential surfaces - - Pictures

    Homework Statement Sketch the equipotential surfaces which result from the following charge configurations: (a) a point charge (b) a spherically symmetric charge distribution (c) a very large, plane, uniformly-charged sheet (d) a long, uniformly-charged cylinder (e) an electric dipole...
  36. ~christina~

    Microscope pictures - photomicrographs

    These are some pictures I have taken through the microscope. All of the pictures are of recrystalized ascorbic acid except for the last two. The last two are of NH4 with perchloric acid (clear crystals) and chloroplatinic acid (yellow) respectively...
  37. snoopies622

    Turning equations into pictures

    It looks like the on-line graphing program I've used for years is now down: http://www.walterzorn.com/grapher/grapher_e.htm Any recommendations?
  38. Evo

    Have you seen the incredible pictures of Iceland's Volcano?

    These are incredible. http://www.swisseduc.ch/stromboli/perm/iceland/eyafallajokull_20100416-en.html http://www.examiner.com/x-25803-Natural-Disasters-Examiner~y2010m4d19-Italian-volcano-expert-captures-images-of-lightning-over-Icelands-Eyjafjallajokull-volcano If I can get a link to work.
  39. C

    Maximum/Minimum - hints or pictures?

    Homework Statement 1. A billboard is to made with 100 m2 of printed area, with margins of 2m at the top and bottom, and 4m on each side. Find the outside dimensions of the billboard if its total area is to be a minimum. 2. A cylindrical soft drink can is to have a volume of 500 ml. If...
  40. Borek

    Vacations in Poland - pictures from Białowieża

    OK, so this year we decided to visit Białowieża - small village in the center of the Białowieża Forest, on the border of the National Park. The Forest is what is left of an ancient forest that covered most of the Europe before it was cut down to make place for agriculture. Unfortunately - for...
  41. G

    Tension Vector Explanation: Solving Homework Questions with Pictures

    Homework Statement My books doesn't seem to give a good explanation of tension vectors. I was hoping someone on here could explain them better. I put the picture from the book up. The two questions with pictures are the one's I'm having trouble with. In case you can't read them: The...
  42. marcus

    First pictures of LHC collision events at CMS detector

    http://cmsdoc.cern.ch/cms/performance/FirstBeam/pictures221109/CollisionEvent.png Garrett Lisi has mirrored the official site, in case of any problems with accessibility. http://sifter.org/~aglisi/albums/LHCfirstcollisions.png
  43. Evo

    PF Member Baby Pictures - Share Yours!

    My brother recently sent me a couple of pictures from when we were children. I thought it would be fun for members to post pictures of themselves when they were children. Me and my older brother. I'm sporting my new Easter hat. This one my brother labeled "You and I back in the...
  44. M

    What Would a Picture of Consciousness Look Like?

    I just had a thought what would a picture that did not use words that most people would say represents consiousness look like? Also I was wondering if every concept could be drawn in a way that most people would agree with what its describing? What do you think the drawing for conciousness...
  45. E

    Downloading ALL attached pictures of a forum?

    I need help Downloading ALL attached pictures of a forum, the pictures are posted on the website under \attachments. I have tried using Extremepicturefinder and picture ripper, but both programs have trouble following the links and threads. All of the pics are posted under a single category but...
  46. Saladsamurai

    VBA PowerPoint AnyoneReplace Exisiting Pictures in New Format?

    Okay. Here's a good one: I recently used a PowerPoint pres to organize a bunch of Data from Excel. I have about 100 slides that have 4 Objects on each slide. Each Object is a Copy/Paste Special of a Range from an Excel spreadsheet. Unfortunately, in my haste I Paste Specialed them all...
  47. Greg Bernhardt

    Pictures show soap bubble bursting

    Super slow motion photos of a soap bubble bursting. I'm impressed! http://www.dailymail.co.uk/news/article-1199149/Super-slow-motion-pictures-soap-bubble-bursting-stunning-detail.html
  48. M

    Clever Physics Applications & Problems: Proven with Math, Experiments & Pictures

    Hello everybody... i want a book that talks about some clever applications and problems in the fundamentals of physics >> >> also i want a book that take the famous concepts of physics and prove it or justify it clearly with pictures , mathematical proofs, clever...
  49. JasonRox

    Is It Expensive to Move Out and Furnish an Apartment?

    So here they are... http://stupidbobby.8m.com/apartment.html There is a caption under all the pictures. Pictures of my bedroom aren't up because my room is complete yet. The costs of moving out on your own is high. I need to buy everything. Can opener, cutting board, garbage bins, couch...
  50. O

    How to make my site and pictures

    to not function the "copy" feature if someone want to copy the material on the page Thank you!
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