The forums are structured into three levels. The top level is Forums. Within a Forum are one or more Topics. Within a Topic you will find Replies. More detail on each of these is given below.
A forum will relate to a specific subject of discussion. This might be a given Nuclear-21 publication, general nuclear industry discussion, or a similar subject.
Think of topics as individual conversations within the forum’s subject. Several conversations can be occurring at the same time, on different aspects of the subject. When visiting a forum, if you want to say something, try to find a Topic on the subject and respond there. If there is no suitable Topic, or all suitable Topics are very old and have not been active in a long time, you can either create a new Topic by scrolling to the bottom of the list of existing topics, or ask a forum Keymaster (email email@example.com) to create one for you if the forum does not allow new topics.
Replies are individual responses to a topic. They form the individual pieces of speech within the conversation that is the Topic. The majority of the forums are made up of Replies.