“ Will use video in class Thanks Erica, I am old school with Allen Bradley PLC's that cost thousands of dollars and take hundreds of hours to... (read full comment) ” 

Posted on March 5, 2011 at 3:40 PM EST

“ Could you explain the valve tech My son put a turbo charger on a 1995 Camaro,,, yes old technology. But now he has to reprogram his cars new... (read full comment) ” 

Posted on August 19, 2010 at 12:08 PM EDT

“ Information is the important Energy I have articles from 100 years ago about attempts to harness wave and tidal power. The real energy at this... (read full comment) ” 

Posted on December 2, 2009 at 9:27 AM EST