When the user is presented with a periodic table such as the representation in Figures 4 and 5, clicking on an element will take the user to a file containing data for that element. Trend in covalent radius as displayed by WebElements on the WWW Figure 5. The user fills in a simple on-screen box with a chemical formula and the browser program then requests that the server program executes the calculation. All the work is hidden from the user. Figure 6 also demonstrates NCSA Mosaic's support for subscript characters.
Chemistry is a very visual subject.
The WWW makes an ideal interface for providing gathered information to interested individuals on given topics. The University of York's Department of Chemistry NMR service maintains a useful WWW site. Some of the information is special to local users but external users will find a good list of NMR-related software and information. The only way to discover more about the WWW is to browse the WWW for a while. One useful and sophisticated feature of the WWW is the ability to search the WWW for documents whose names or content contain specific text.