PHYSICA

ActionScript 3.0 with Flex is cool. Tested with Monte Carlo algorithm.

2007-04-09T07:50:00.000-07:00

I have not posted anything for along time because I am so busy.

By the way, after heard about new technology from Adobe and I have enough time to test. And I have tested it now. I write actionscript 3.0 in flex application to calculate pi value by Monte Carlo Method. I didn't use Flex Builder, but I used Flex SDK with FlashDevelop.

The result of testing is very cool. The calculation performed by actionscript 3.0 is very fast (let try it yourself with N around 1000000)

This is it. Let try => http://physica.thai.googlepages.com/MonteCarloAS3.swf
This is a source code => http://physica.thai.googlepages.com/MonteCarloAS3.mxml

Have Fun. :)

Physica

Wolfram Tones

2006-11-04T20:53:00.000-08:00

I have found this thing from the guy who view and leave comment at this blog. This cool thing name is Wolfram Tones. This is a tool that used to generate the unique style musics. You can generate your own musics at Wolfram Tones' site. This is my own musics ->

Click at the image to play the music.

The wolfram Tones are generated from the Mathematica algorithms. (Follow this link to see how it work) And Mathematica is also my favorite computational tool.

You can generate your own musics and save it to your computer. Is it cool ?
Don't forget to generate your own musics.

Statistical Mechanics Text Book - Free !!!

2006-10-23T06:43:00.000-07:00

Today, I have found this cool book available from the author's site.

This is the link -> http://www.physics.cornell.edu/sethna/StatMech/
Let's check it as fast as possible !!! Don't forget to check another resources from this site. Because this site has another cool stuffs such as Java Applet, and Lecture notes.

Flag waving 3D Improved and Source Code

2006-10-20T05:44:00.000-07:00

I have improve the equations, and add some features. This is it - >

Click at the image to view. (or click here)

I use some calculus and linear interpolation knowledge in this applet. This is source code

wavingflag.as

This is the source file (230.7 kB)

Feel free to use it.

All comments are welcomed.

3D Flag Waving Effect - BitmapData Experiment

2006-10-18T04:38:00.000-07:00

I have just done the second experiment on BitmapData class in actionscript. You can't adjust anything because this is an experiment version. I will use it in some of my physics simulations. Principle behind this is basic physics and mathematics. I just make it move.

Click at the image to view the waving flag.

Is it cool? I will clean the code up and pose in this blog (may be in one or two days).

My first experiment on BitmapData

2006-10-17T05:38:00.000-07:00

In Flash Actionscript, one of the interesting class is BitmapData. This class can control and read bitmapdata using only a short code.

This is my first experiment on BitmapData.

Click at the image to view.

Or Click here! If you have some problems to open file.

Free Materials on Computational Physics using C++

2006-10-16T05:52:00.000-07:00

Today I plan to start reading computational physics. Before I start, I have looked around for the materials. Surely, internet still be my best book store (Free book store). In a short time, I found a lot of cool materails. (I use google search.) And the best that I found is this free book
http://www.physics.ohio-state.edu/~ntg/780/readings/hjorth-jensen_notes2005.pdf
This is a computational physics book (using Fortran and C++). The author is M. Hjorth-Jensen.

If you interest in this field, these link may be (I can say "will be" not "may be") helpful.
http://www.fys.uio.no/~mhjensen/
http://dmoz.org/Science/Physics/Computational/
http://www.physics.ohio-state.edu/~ntg/780/
http://www.physics.utah.edu/~detar/lessons/c++/

My favorite picture from M. Hjorth-Jensen's book

But if you are a newbie, and don't have any programming experience. I would like to introduce you to start with Python, because "Python is a modern object oriented programming language which is freely available. Python has a short learning curve and with the specified modules has powerful facilities for numerical calculation and visualisation." (from http://www.phy.uct.ac.za/courses/phy321f/compphy.htm)
All of these links will be helpful.

http://www-teaching.physics.ox.ac.uk/computing/ProgrammingResources/programming.html
http://www.phy.uct.ac.za/courses/phy321f/compphy.htm

And I have one more nice material which I forget it for now. I promise, I will find it and tell you soon.

Funny Science Shows from Steve Spangler

2006-10-15T04:40:00.000-07:00

If you want to encourage your students or your children to think that science is fun (not a boring stuff), I would like to introduce this website http://www.stevespanglerscience.com/video/.

Steve have done many interesting show, and you can do some of them at home.

By the way, this may be helpful when you have to do some shows at the party.

This is one of my favorite show.

Have a funny science time!!! +_+

Flickr is cool!

2006-10-15T03:39:00.000-07:00

I have found that Flickr is a cool picture storage website. I can store my images, edit them, share them, view them as a slide show, and blog them.

Flickr also have the funny stuffs such as what I have done with my harmonography experiment photos (you can see it in my side bar).

You can find a lot of beautiful and useful images from this site. (I thing, it is more useful than google image search.) And this is one I have found

If you like it, you can try it for free (with your yahoo account).

Harmonograph (I have told you, how beautiful physics are.)

2006-10-14T04:07:00.001-07:00

Harmonograph is a tool that used to create a beautiful pattern. The principle behide this tool is simple harmonic motion.

In this applet, you can change 8 parameters. By changing these 8 parameters, you can create a lot of beautiful patterns. Don't forget to show me your works.

Click at the image to view the applet.

If your screen is too small to view full size click here -_-
You can see the real harmonograph at this site.

This is not the most beautiful picture. You can see all of my experiments at

http://www.flickr.com/photos/coolphysica/sets/72157594327542159/

If you want source code, I can post for you. Just tell me (as a comment).

Free Vibration of a Linear Triatomic Molecule

2006-10-08T01:04:00.000-07:00

Free vibration of a linear triatomic molecule can be easy approximated use mass-spring model.
Each atom is replaced by mass, and chemical bond replaced by spring.

This work tells you that all of vibration style can be explained by linear combination of normal mode.

You can change the amplitude of each normal mode by sliding the sliderbars.

Click at the image to view.

If there are some problems (I found some problems while using IE.). Go to direct link
http://physica.thai.googlepages.com/massspring.html

About This Blog

2006-10-08T00:29:00.000-07:00

Physica is a blog which shows some of works in my project. My project name is Physica. Physica themes are changing the ways that thai students learn physics, and changing their thought about physics. More than 80% of Thai student don't like physics, they think that this subject is very boring, this is a course that has only fomula, formula, and formula. But in my opinion physics is a cool thing, it can move, it's alives.(and my friends always tell me that"You fake, mad,... so I don't believe you.")

Because all of story that I have told you, I also go to find the way which can make my dream real. After along time, I have found that Flash can make my dream real. I can use Flash to make Physics alive. Now, I am have started my project. And I want to show you what I am doing.

Theme of my Flash works are

They are easy to learn.
They are interactive flash (and that what I call alive - learners can ask them "What happen if ..., and what if... ").
All of people can use them.
They are free.

After I finished all of works about Flash, I will create website that allow all of the students come to learn physics in the new way the way the they haven't seen before, the way that Physics is alive !!!

If you have any comments, please let me know.

Physica

Hello World!

2006-10-07T06:01:00.000-07:00

This is my first post. Just test