Reporting broken links
This page is for reporting broken links. If you only want to send a message about a link, e.g. because it seems to be inappropriate etc, then use the contact form here.
Before you click the Report Link As Broken button below, remember that 9 out of every 10 links that are reported as broken by users aren't broken at all! The reason they appear to be broken is that the user often has not got the correct "plug-in" (a free piece of software designed to help you see a picture or play a game) installed on their computer. Here are links to the plug-ins you'll need if you want to enjoy the majority of the super sites we link to.
Shockwave
Powerpoint Viewer
Java
Flash
Transparent, Opaque and translucent
Our description: A virtual demonstration of the differences between Transparent, Translucent and Opaque. You can make a material change its properties so that you can see a ball behind it depending on the transparency setting. There is also a simple animation that shows how the light passes through a transparent material or gets reflected back by an Opaque material.
Clicking the button alerts the TopicBox staff to check the external site. Only click it if you are confident that the site is no longer working.