If your PC has the trouble "Java: Application blocked by Security Setting",
http://www5d.biglobe.ne.jp/
http://jars.geogebra.org/
Please Add above 2 sites to the Exception list of Java Control Panel in Control Panel. (or Down the security level to Medium.)
http://www.java.com/en/download/help/jcp_security.xml
http://www.java.com/en/download/faq/exception_sitelist.xml
I apology for this inconvenience. (Java environment is foolish, I think so.)
c. 2014/01/16 java Version 7 Update 51 has bug. using local Disk applet is denied. very odd. --- bug.


-----------------------

Chebyshev Linkage Wheel --- DEMO


Please drag the red bullet point ●  C.
cf. Explanation page. (written in English)
In real apparatus, there is a partition (= stopper) between point B and P to prevent to cross over.

cf. Related: The Chebyshev Walking Machine (Copyright © 2013 GeoGebra Institute of Metro Manila )

このアプレットは GeoGebra (www.geogebra.org) を用いて作成されました - Java がインストールされていないようです。www.java.com へ行ってみて下さい。

Fumio Imai, 2013/11/02, Created with GeoGebra