Things we have done today in my office:
Stolen two cups of dirt from a construction site.
Made a pot of mud with one cup of dirt.
Microwaved the second cup of dirt in the faculty lounge.
Measured the the sensor output of totally dry dirt versus a soaking wet pot of mud.
Used the point-slope form of linear algebra to determine the formula for the line between dry and wet. In a journalism school. And it worked.
More about this later, including what it’s all about and code.