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This brief interactive activity, by Electromechanical Digital Library and Wisconsin Technical College System faculty members Terry Bartelt and Stephen Schneider, introduces air leaks in pneumatic systems. The lesson, full of illustrations and animations, walks students through the cost and cause of...

This learning object examines pneumatic directional control valves in two-way, three-way, and four-way valves. The presentation is interactive, as it allows the user to focus of certain valve types and cater their learning towards those. The site employs flash based animations, and also many other...

This interactive lesson, by Electromechanical Digital Library and Wisconsin Technical College System faculty member Terry Bartelt, discusses the three types of air preparation processes for pneumatic systems: filtering, regulating, and lubricating. Each method is discussed in detail, with...

This brief interactive activity, by Electromechanical Digital Library and Wisconsin Technical College System faculty member Terry Bartelt, begins with a discussion of the three basic components of a pneumatic power system, the prime mover, compressor, and receiver tank. Visitors can learn about each...

Polymerase chain reaction (PCR) enables researchers to produce millions of copies of a specific DNA sequence in approximately two hours. This automated process bypasses the need to use bacteria for amplifying DNA. This animation from Cold Spring Harbor Laboratory's Dolan DNA Learning Center presents...

"Powers of Ten", the film made by Charles and Ray Eames in 1977, takes the viewer from the core of an atom to the edge of the universe, moving 10 times further every 10 seconds. The film is about scale and how we view the universe and our place in it. Powers of Ten is an extremely valuable tool for...

The North Carolina Community College System BioNetwork offers a number of interactive eLearning tools (IETs), online learning modules designed to enhance (not replace) hands-on training. This particular IET, entitled Preparing for the Professional Interview, provides guidance for job interview...

The Protein Purification Lab is a interactive computer simulation of protein purification. This program is extremely helpful for beginners in the art of protein purification. It gives students a chance to get beyond the details of individual techniques and get a sense of the overall process of a...

This free downloadable DOS program teaches hands-on PLC (programmable logic controller) programming and functions as a Allen Bradley PLC emulator. This PLC training package is three distinct programs combined into one. There is a PLC ladder logic (function chart) editor for creating and editing PLC...

This E-textbook, written by statisticians Garrett Grolemund and Hadly Wickham, teaches learners how to use R to transform data, change its structure, visualize it, and model the data. The material has been designed for those with a data science background and focuses on using R to put data science...