USING SENSORS WITH DATA LOGGERS
Data logging is the automatic collection and saving of information. Having the ability to automatically log a string of measurements and save them for later study and analysis can help transform you from an experimenter into a scientist.
Trees are natural data loggers, and I described how to analyze their annual growth rings in MAKE Volume 19. So are layers of snow (Volume 21). And you can log sunlight intensity for entire days using blueprint paper (Volume 26).
Electronic data logging provides an enormous range of opportunities for amateur scientists. ...