Java (not to be confused with JavaScript) is developed by Sun Microsystems. It is an object oriented programming language and is an open-source project.
Java enables more complex things to be achieved on the web. You might have noticed Java applets across the WWW. These are usually used when the website requires complex programming support.
For ThinkQuest, although Java (if used as a server-side script) is not supported, it can still be used to create J2ME games for mobile devices.
With new technology offered by Apple and IPIX Corporation, education can be taken to the next level with technologies like Quicktime VR and IPIX. They enable 360 degrees rotation on photographs - It lets your users feel like they are in the location itself.
Here are the links to check out more:
QuickTime VR
IPIX