Video Definition and 724 Threads

Video is an electronic medium for the recording, copying, playback, broadcasting, and display of moving visual media. Video was first developed for mechanical television systems, which were quickly replaced by cathode ray tube (CRT) systems which were later replaced by flat panel displays of several types.
Video systems vary in display resolution, aspect ratio, refresh rate, color capabilities and other qualities. Analog and digital variants exist and can be carried on a variety of media, including radio broadcast, magnetic tape, optical discs, computer files, and network streaming.

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  1. Puma

    Sinusoidal path of light video

    Can you explain the sort of sinusoidal path here: http://i.imgur.com/vN7PJCu.gif
  2. Newtonfalls

    How Does the Ruler and Hammer Balance Trick Defy Physics?

    Hi, yesterday i saw this video on discovery channel. <link to video deleted> in the documentation it was said that this trick with the three hammers and three rulers doesn´t match with actual laws of physics! does anyone can give more information about this?
  3. E

    Troubleshooting Low Ping in Online Video Games

    My ping is not visible on the in-game scoreboard in games like battlefield 4 and battlefield hardline. And sometimes the server auto-admin kicks me because of a sever rule against not having a ping. I've tried troubleshooting this problem with no success. Please help me out!
  4. L

    Fortran Can Fortran be used to create a video of changing arrays?

    Hi, using Fortran that writes a large amount of arrays to a text/dat file. Is there some kind of software where I can create a video of these arrays changing from beginning to end? I've tried using VMD, but cannot get dat/text files working on it. Any input will be appreciated.
  5. D

    30FPS displayed on a 200Hz monitor

    Hello! I have a PAL TV, and that means it is best for footage of 25fps and 50fps The TV's refresh rate is 200Hz Well, my questions are: What happens if I play an NTSC file on the TV? (≈30fps), since it doesn't go well with 200Hz much (isn't a multiple)... I thought about how would the TV...
  6. R

    Speed Time Estimation from a video

    Homework Statement Watch the crash test video , and determine the following: 1. How fast is one of the crash test dummies thrown forward (the crash at :34 seconds) ? Pick either one, and be clear how you estimate this. 2. Assuming the speed you got from part (1), how high would a different...
  7. Spinnor

    NASA Rock ignites at 45,000mph over PA, NASA video, why flare up?

    From Google news, http://www.theregister.co.uk/2015/02/18/meteor_explodes_over_Earth's_beaver_in_hot_nasa_video/ Simple question, if you play the video in the link above the light from the meteor flairs up into a very large ball of light. Why don't we continue to see a relatively small point...
  8. Y

    Best textbook or video or device for understanding QM

    As the title says I am looking for some book to read and understand this world. I know many people say its impossible and that we can learn it by learning the math bluh bluh.. But i have passed 4 quantum courses and i know the math. I just can't get the touchable concepts ( i don't really know...
  9. OmCheeto

    NASA NASA's Solar Dynamics Observatory, 5 year video

    I didn't know where to post this, but, this video makes my eyes water.
  10. Greg Bernhardt

    Quantum Mechanics Video Lectures

    Cambridge University: Quantum Field Theory This is part of 14 in a series. Click the youtube link to view other videos on the series.
  11. Fizz1cks

    Frame rate of a video: Calculating velocity of liquid

    Homework Statement The problem I have is not actually so much a physics problem but more of a logical problem. When we look at rulers and any kind of measuring tools, we start from zero. We count the number of intervals instead of the divisions. Suppose we have a video with 7 frames per...
  12. Greg Bernhardt

    What topics are covered in the University of Arizona's Cosmology Video Lectures?

    Series of Lectures on Astrophysics and Cosmology This is part 1 of 12 in the series. Click the youtube link to select another video in the series.
  13. Greg Bernhardt

    Classical physics Video Lectures

    MIT: Thermodynamics (2008) This is part 1 of 36 in the video series. Click the youtube link to find the playlist to select another video in the series.
  14. Greg Bernhardt

    What is the A Grand Tour of the Universe video series about?

    Introduction to the University of Edinburgh's "Astrobiology and the Search for Extraterrestrial Life" (ASTROBIO) open online course. This is part 1 of 33 of the series. Click to the youtube link for the playlist to view the other videos
  15. terryds

    Best physics video channel for Olympiad students?

    Hi.. I take a high school physics Olympiad. Could you please tell me what the best physics video channel on YouTube or other sites ? I'm looking for videos that gives an overview to an advanced problem (It can be IPhO level) and guide to the solution step by step..
  16. arist

    UK pilots landing sideways in Leeds - Video

    UK pilots make a good crosswind landing, or "crab landing " despite winds in Leeds, the highest UK airport (208 m): Landing sideways in Leeds - Video. Winter 2015 Imagine, how passengers from Scotland felt... Such a relief that they make it on the first attempt... )
  17. Andy Resnick

    Have you seen this astronaut's view of spacecraft re-entry?

    Wasn't sure where I should post this link: astronaut view of re-entry- http://spaceref.com/missions-and-programs/nasa/video-nasa-provides-an-astronauts-eye-view-of-orions-re-entry.html
  18. Ahmed Abdullah

    Is there video recordings of "Feynman Lectures on physics"?

    I have the books and audios. But I have yet to find the videos. I am wondering whether they exist.
  19. P

    Where Can You Explore the Universe from Planck Scale to Cosmic Scale?

    Hi. I wasn't sure where to post this, but wanted to share this amazing video. From the smallest to the biggest thing in the universe:
  20. Greg Bernhardt

    Has Anyone Played Space Engineers?

    Kerbal Space Program has been successful, but I wonder if anyone has messed with a game called "Space Engineers". It's a sandbox space engineering game. http://store.steampowered.com/app/244850/ @collinsmark
  21. J

    What does this line of Isaac Newton's rap video mean?

    Go to 1:24 of this video: He recalls some integral he wrote at a young age: " ... times the sixty-fourth power of ... what?" and looks confused. At 1:44 Neil Degrasse Tyson says, "By the way, the answer to your little calculation is i." Can someone explain the historical reference to me...
  22. xortan

    How can I stream video over USB from an analog camera to a Windows 8 tablet?

    Hello everyone, So first I'll give an overview of the project that I am working on. We have a camera system that we wish to control on a Windows 8 tablet. The program on the tablet will need to display the video signal and also be able to issue commands to the camera (currently, just change the...
  23. I_am_learning

    Misc. Explain this trending science DIY video

    My take is: The magnets are conductive and complete an electric circuit composed of the battery and a section of the coil (toroid) thereby forming a solenoid. The battery-magnet assembly is in the center of the solenoid. The magnetic field of the solenoid is maximum at the center and decreases...
  24. Wes Tausend

    Excellent Lorentz Transformation educational video?

    My local PBS station broadcasts a physics series on a sub-channel. They call it The Mechanical Universe locally. PBS recently broadcast The Lorentz Transformation . It appears that one may view these on line, as the Lorentz Transformation began to load after I allowed it to pop-up. There are...
  25. DaveC426913

    Video of huge burst of light in Russia

    http://www.iflscience.com/space/what-was-weird-flash-over-russia On the evening of Friday, November 14, citizens near Russia’s Sverdlovsk region saw a large orange burst of light. There was not an immediately obvious cause for this giant flash in the sky. Was it another asteroid? A meteor? A...
  26. gracy

    Can Friction Force Balance Normal Force in a Vertical Direction?

    in this video question no 5 actually it is first question of the video but it's number is 5,i didn't understand this question.first i thought The force acting on block A is its weight in vertically downward direction, with no friction with the wall and Condition for equillibrium: Sigma Fx= 0...
  27. D

    Is there any video series on physics laboratories?

    "Laboratory Demonstrations" is the only thing that I could find! Is there anything else? * Level: University, BS. * Types: Fundamental Physics I: Dynamics; Fundamental Physics II: Electricity and Magnetism; Fundamental Physics III: Oscillation and Waves and Geometric Optics
  28. K

    Can a Video Game Teach You Electrostatics Through Gameplay?

    Hey guys, I am working on a video game which is based on electrostatics. You play a charged sphere and you can change its charge to interact with other charged objects, sticking to walls and ceilings and orbiting around other charges etc. I am curious what you think of the concept, and which...
  29. bcrowell

    Educational paper and video, Bertozzi, "The Ultimate Speed"

    I thought others might be interested in an old educational paper and fim demonstrating that you can't accelerate material objects past c. Bertozzi, Speed and kinetic energy of relativistic electrons, Am. J. Phys. 32 (1964) 551 The Ultimate Speed - An Exploration with High Energy Electrons -...
  30. E

    The most beautiful song from a video game

    This (in my opinion) is the most beautiful, relaxing, and soothing song from any video game in history. Video game music has really come a long way. From the game Deus Ex Human Revolution.
  31. S

    Which of these Quantum mechanics video lectures(ocw) is good?

    Yale University: Lectures by Ramamurthy Shankar http://oyc.yale.edu/physics/phys-201/lecture-19 IIT Madras: Lectures by Prof. V. Balakrishnan MIT ocw: Prof. Alan Adams http://ocw.mit.edu/courses/physics/8-04-quantum-physics-i-spring-2013/other/lecture-1/ Oxford University: Prof...
  32. Fredrik

    Laniakea: Our home supercluster (video)

    I just saw this video and wanted to share it. It contains some pretty awesome plots of the motion of galaxies in our neighborhood. Here's a longer video made by the same person:
  33. J

    Can someone explain what Michio Kaku is talking about in this video?

    "This is Your Brain on a Laser Beam" Around the middle of the video he starts talking about shooting consciousness on a laser beam into the heavens. What would be the point of that? I finished watching the video and I'm like "WTF is this guy talking about?"
  34. marcus

    PI video of new QG ideas from Eyo Ita, Chopin Soo, C-Y Chou

    http://pirsa.org/14070033/ Physical Hilbert space for the affine group formulation of 4D, gravity of Lorentzian signature. Eyo Ita The authors have revealed a fundamental structure which has been hidden within the Wheeler-DeWitt (WDW) constraint of four dimensional General Relativity (GR) of...
  35. marcus

    Landmark talk by Steinhardt (28 minute video online)

    Seriously excellent talk given Monday 23 June at the Princeton Strings 2014 conference by Paul Steinhardt: http://physics.princeton.edu/strings2014/videos/talk1h.mp4 You may have to pause it and wait for buffering. I found that after the video had played through I could drag the button back...
  36. T

    Examples of when changing changing aperture in the same video clip?

    Could you please give me example of situations when changing the aperture ( that means the depth of field, and exposure, right? ) is necessary during shooting the same video clip?
  37. Tesladude

    Combining modules to transmit video signal for RC car

    I don't see why not but is there any reason that i could not use these modules http://www.ebay.com/itm/121370353437?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649 to make a wireless link between this camera and screen...
  38. Tesladude

    How to transmit composite video

    Can I use a 315MHz transmitter module to send a composite video signal to another reciever module?
  39. hxtasy

    ESD training video, can i get a good recommendation?

    trying to find a good esd or assembly craftsmanship video for employees in a small business, I've seen some in the past, one i saw had R Lee Ermey (from full metal jacket) in it, it was pretty convincing. obviously, a lot of people don't take esd seriously. i saw another one with a good...
  40. G

    Maximizing Critical Hits in DDO: Keen Edge vs Exploit Weakness

    Hi I play a video game (DDO to be specific). In this game I can chose one of 2 options the first (Keen Edge) increases my Critical hit rate by 10% permanently, the second option (Exploit Weakness) increases my critical hit rate by 10% each time I do not make a critical hit (e.g. Attack 1 crits...
  41. F

    Plane on conveyer belt question (with video)

    My initial thought was that the plane wouldn't be able to take off. If the conveyor is moving in the opposite direction as the plane, at the same speed, then the plane wouldn't move relative to the ground (as if you're running on a treadmill, you're not actually changing position relative to the...
  42. R

    How do phase values are able to capture motion from video?

    hi everyone,i know that the phase spectrum contains most of the structural information about the image.But i want to know more about importance of phase spectrum related to video signals. I have read that temporal variations of phase values are able to capture most of the dynamical...
  43. F

    How Does IBM Manipulate Atoms and What Are the Implications for Data Storage?

    I have a number of questions about the above video: What are they using to move the atoms? What are the wave-like lines around the shape/atoms? Why can't we see the atoms of the material that the video was filmed on (i.e. the background)? Side question - What do atoms have to do with data...
  44. Greg Bernhardt

    Where Can I Find Free Math Video Tutorials with No Ads?

    Mathispower4u Tutorials This site provides over 3,500 free mini-lessons and example videos with no ads. The videos are organized by course and topic. Looks like most links send you to the video hosted on YouTube. The format is similar to Khan Academy. http://mathispower4u.yolasite.com/...
  45. Tesladude

    Use 433MHz transmitter for video rca?

    Hi I want to transmitt a video rca signal with dome of the 433mhz transmitter and receiver modules you can get on ebay for cheap. I have used them a lot and have accomplished transmitting data through picaxe microcontrollers successfully. But could I use it to transmitt a video rca signal...
  46. Y

    Looking for free video editing software for .MOV files.

    My camera only produce .MOV files. I want to record some demo video that needed higher quality audio than the camera can record. I have AudioBox USB with Studio One software for recording and editing the audio. I need to find a free software that can edit the video by removing the original audio...
  47. Borek

    Watch Glaciers Split in Half: Incredible Video

    It could go here, or in the General Discussion. Amazing: http://www.wimp.com/glaciersplit/
  48. Borek

    Native English Speakers: Can You Understand Video Commentary?

    I can't do much about the crappy pronunciation, but if anything acts on your nerves, please tell. And in general, if you think something is wrong about the idea/approach/execution - fire away. Note: it is about video, not about the software. That is, I have nothing against comments about the...
  49. N

    What Makes the Metric System Essential for NASA's Mars Mission?

    6 minute video. Long on visuals, short of science details... but I found myself watching to the end. Lots of explosions. https://www.youtube.com/watch?v=XRCIzZHpFtY
  50. N

    Music What makes this physicist musician's performance so extraordinary?

    I have a Bs degree in physics from the best university of turkey. however, I am an expert on traditoinal ottoman turkish music. this is an example of my musical performance: http://youtu.be/qjHW3yak9T8
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