[plt-scheme] behaviour of void?

Arthur Nunes-Harwit wrote:

> I see a lot of projects that are video games. 

Part of what I (and many others) would like to see are ways of 
attracting students to CS who might be turned off by the gaming 
stereotypes fostered in pre-secondary settings (many of them, in our 
setting, will have strong math skills). So suggestions for projects that 
are not games would also be appreciated. --PR