I've discovered the blog of Mr. Riley, a web programmer. He has lots of great Twine code examples.
Mr. Riley is a teacher. He has a good starting point example of a combat system for a Twine game called Twine Fray.
I plan to scour his blog for learning purposes.
Lately, I've been reading some articles put out by prominent researchers in the SETI at Home project: Here is an explanation of the Drake Equation. And here is an article of what we might expect from E.T.
For a while now, I've had my desktop PC (which I don't use on a daily basis but do leave running) executing BOINC and assisting the SETI @ Home program to process telescopic data.
BOINC downloads scientific computing jobs to your computer and runs them invisibly in the background. It's easy and safe.
About 30 science projects use BOINC; examples include Einstein@Home, IBM World Community Grid, and SETI@home. These projects investigate diseases, study global warming, discover pulsars, and do many other types of scientific research.