ITI (Dresden, Germany, www.iti.de/simulation) has its ITI-SIM Version 3.3 engineering simulation software available for on-line tryouts. No need to register either—the package can be tried anonymously for a two-hour shakedown. The session can include loading sample model files, changing parameters, running simulations, and viewing the results. The viewer can also create his or her own models. For help there is a Getting Started tutorial as well as two test choices: Hydraulic Cylinder Drive and Automotive Powertrain and Vehicle Simulation. Once registered, the user can save models, parameters, and results in a free evaluation period for upwards of four weeks. The simulation models are graphic-interactive featuring practical tested models compiled from physical oriented application libraries.
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.