NTNUJAVA Virtual Physics Laboratory
Enjoy the fun of physics with simulations!
Backup site http://enjoy.phy.ntnu.edu.tw/ntnujava/
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Give me a standpoint and I will move the earth. ...Archimedes (287-212BC)
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Author Topic: Light cone (simulation)  (Read 38834 times)
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Fu-Kwun Hwang
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on: May 28, 2009, 04:55:47 pm » posted from:Taipei,T\'ai-pei,Taiwan

In special relativity, a light cone (or null cone) is the surface describing the temporal evolution of a flash of light in Minkowski spacetime. This can be visualized in 3-space if the two horizontal axes are chosen to be spatial dimensions, while the vertical axis is time.

Image from wiki: http://en.wikipedia.org/wiki/Light_cone


The following simulation was created to help you visualize the light cone (for observer moving with blue dot at the left X-Y panel). Events from three observers are drawed with blue, green and cyan traces.

Embed a running copy of this simulation

Embed a running copy link(show simulation in a popuped window)
Full screen applet or Problem viewing java?Add http://www.phy.ntnu.edu.tw/ to exception site list
Press the Alt key and the left mouse button to drag the applet off the browser and onto the desktop. This work is licensed under a Creative Commons Attribution 2.5 Taiwan License
  • Please feel free to post your ideas about how to use the simulation for better teaching and learning.
  • Post questions to be asked to help students to think, to explore.
  • Upload worksheets as attached files to share with more users.
Let's work together. We can help more users understand physics conceptually and enjoy the fun of learning physics!


* smf_lightcone.gif (39.43 KB, 796x517 - viewed 621 times.)
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ivanvii
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Reply #1 on: December 07, 2010, 07:07:31 pm » posted from:Split,Splitsko-Dalmatinska,Croatia

why alll simulations cant'r work although i got java?
i can play on line chess, alll games but can't wathch those simulations?HuhHuhHuh
too shabby
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ahmedelshfie
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Reply #2 on: December 07, 2010, 07:43:34 pm » posted from:SAO PAULO,SAO PAULO,BRAZIL

You have to be sure that already have java in your PC to be able run all simulation,
Try again and use more than one browser.

« Last Edit: December 07, 2010, 07:49:41 pm by ahmedelshfie » Logged
amanda87
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Reply #3 on: November 16, 2011, 03:22:52 pm » posted from:-,-,-

why alll simulations cant'r work although i got java?
i can play on line chess, alll games but can't wathch those simulations?HuhHuhHuh
too shabby


I can't run the simulation too. Is there any other way to watch it?
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ahmedelshfie
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Reply #4 on: November 16, 2011, 04:20:16 pm » posted from:SAO PAULO,SAO PAULO,BRAZIL

To you can watch simulations at you PC you should be already install JDK(Java run time) you can found at Java SE Development Kit 7 Downloads
Later when finish download you have too install and Enjoy the physics applets.
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amanda87
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Reply #5 on: November 18, 2011, 04:03:28 am » posted from:-,-,-

Now everything is OK, thank you!!!
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Give me a standpoint and I will move the earth. ...Archimedes (287-212BC)
 
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