Measurement, Instrumentation & Display of Information - Sometimes, older, analog instruments obtain better information from the world around us than all the new, automated tools. I appreciate both. I collect classic instruments capable of measuring in orthogonal domains, and tools to process the information. I appreciate slide rules as well as my more modern HP-48. Even my Palm Pilot can be an practical data acquisition tool.  If you're familiar with algorithms to generate nomographs, please e-mail me. What do you do with information after collecting it? Visual Display of Quantitative Information by Edward Tufte gives a clue. If you're interested, take a look at my visual representation of GPS position wander with Selective Availability turned on, or the power output of my gasoline powered electricity generator.