Note: the short video clips below have been superceded by an instuctional video in 3 parts that I made for my students but also uploade onto YouTube. The introduction is here http://youtube.com/watch?v=1Xsk3HHoB_4
These are very short: only 5 seconds long. If you don't know how to play them, see the instructions at the bottom of the page.
Here you can see one my students showing how pulling the string (tendon) flexes the finger on a just-completed Robot Hand.
In this movie my son pulls the tendons for two fingers and the thumb, forming the "peace sign."
Go to the Robot Hand introduction page
Build the Robot Hand
Back to the Science Toy Maker homepage.
If you have a fast internet connection, you should be able to simply point and click to play the short MPEG movie. If the picture is halting the first time through, click play on your media player and it ought to play smoothly the second time.
You will almost certainly have to hit play a second time if you have a dial-up internet connection. If you still can't get it to run smoothly, you will have to right-click, then "save file as..." or something similar to that. Take note of where you are saving it. They are short and highly compressed, so they won't take long to load. Even with a fast connection, save the file like that if the picture is jerky. To play the file, find it and double-click on it. It will play in the default media player.