Author Topic: Mirage! you can see it but you can not touch it!  (Read 37601 times)

Fu-Kwun Hwang

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Mirage! you can see it but you can not touch it!
« on: June 08, 2005, 11:29:39 am »
This applet simulate a popular physics toy: Mirage
Here is the Youtube Movie http://www.youtube.com/watch?v=HPWbP1zvsxA



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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!

lookang

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Re: Mirage! you can see it but you can not touch it!
« Reply #1 on: December 26, 2008, 10:10:38 pm »
this is so cool! i also play with this toy before so i am familar with the light reflect to make a virtual image at the top of the hole.

thanks prof!

by the way, how do i make sense of this particular light direction as shown in the picture?


Fu-Kwun Hwang

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Re: Mirage! you can see it but you can not touch it!
« Reply #2 on: December 26, 2008, 11:29:21 pm »
I am sorry. There should be  images in the simulation. I forgot to upload image to the server.
I just did. You should be able to find the image when you view it next time.
You can change the arrow to change the initial direction of the light ray.

Please check out the attached files

lookang

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Re: Mirage! you can see it but you can not touch it!
« Reply #3 on: June 20, 2009, 08:42:30 pm »
think the image is missing. ???
 

Fu-Kwun Hwang

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Re: Mirage! you can see it but you can not touch it!
« Reply #4 on: June 20, 2009, 10:30:05 pm »
It might be due to some bug when switching from EJS 3 to EJS4.
I just re-compiled it. It should work fine now.
Thank you!

desertrose3

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Re: Mirage! you can see it but you can not touch it!
« Reply #5 on: January 20, 2012, 07:06:27 am »
this is so comprehensive! thank you again.

1001obiavi

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Re: Mirage! you can see it but you can not touch it!
« Reply #6 on: January 28, 2012, 07:07:25 pm »
This is very impressive. Thanks you!

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