"Measuring Pump Efficiency: Uncertainty Considerations"—a free research symposium webcast to be given at 11 a.m. CST on May 6—will analyze the reasonable confidence intervals for pump efficiency measurements. Authored by Noah Manring, University of Missouri-Columbia, the research will also present a method for calculating this confidence interval. To register, go to www.nfpa.com/default.asp?pid=389.
A make-your-own Star Wars Sith Lightsaber hilt is heftier and better-looking than most others out there, according to its maker, Sean Charlesworth. You can 3D print it from free source files, and there's even a hardware kit available -- not free -- so you can build one just in time for Halloween.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies.
You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived.
So if you can't attend live, attend at your convenience.