Tuesday, November 18, 2008
My presentation is about the new technologies coming up on the market to replace gasoline powered cars by greener technologies. The three main technologies that are actually dominating are: hybrid cars, all-electric vehicles and hydrogen-powered fuel cells cars. For each of those, I will explain you the basics on how they work, show you some examples of cars using those technologies and finally compare the advantages vs. disadvantages. At the end of the presentation you should have a better idea of what are those technologies and why they are so important for us.
Sunday, November 16, 2008
Fundamental science affects our lives in many ways. Every object we touch has been through the hands of an engineer, who uses the results of fundamental science research to create safe and useful designs. Aerodynamics is no exception in the use of fundamental science, which led to the source, sink and point vortex assumptions, developed at the turn of the century and still useful today.
Monday, November 3, 2008
Geometric dimensioning and tolerancing respects the function and the relationship of one part, saving money by giving tolerance bonuse in some situations. It fits better sophisticated engineering techniques than older tolerancing methods as it provides interchangeability of a part. Fourteen symbols, expressed in a feature control frame, define the various possibilities to control a feature.
Posted by Ghislain at 11:38 AM
Sunday, November 2, 2008
Remote controlled aircraft, which were at first heavy and unreliable, have evolved to become lighter, safer machines with incredible power, offering endless possibilities. If money is not an issue, one can get anything ranging from an indoor electric helicopter to a 30 pound turbine powered jet! Anyone can learn to build and fly an RC aircraft once they know the basics...