<p>I guess i have learned a lot from YouTube "University"... on the home projects, or work projects, that i have needed to do...&#160;</p> <p>This is the greatest repository of online information...&#160;</p> <p>Last week, i learned several methods to change out the headlamps of a PRIUS... and a year ago, a Mazda 6.... and then completed the tasks on my own.&#160; I have learned how to check my water heater elements and replace them.&#160; Over the semester(s), i have refreshed my memory on Rankine cycle and Bernouli's equations, and even discovered current research and valuable graphics from others on centrifugal pump impeller pressure curves (valuable for troubleshooting).&#160;</p> <p>I am not sure of a greater asynchronous model than YouTube university...&#160;&#160;</p>