Power mechanics is an entry level course for students grades 9-12 who are interested in topics of power and transportation.  Class topics are the hans on study of the internal combustion engine , the electric motor, lighter than air flight, and the principles of aviation. -Brief engine history , these are the must know facts about early internal combustion engines History Francois Issac de Rivaz built the first internal-combustion engine in 1807. However his engine was impractical for many uses because it lacked power and relied upon a mixture of hydrogen and oxygen for fuel. In 1858, Jean Lenoir invented the first practical internal-combustion engine. It relied upon coal gas that was sucked into the cylinder at the beginning of each stroke and then ignited to push the piston to the other end of the cylinder. This process was then repeated at the other end of the cylinder making the engine double-acting. In 1867, Nikolaus Otto built the first four-stroke internal-combustion engine. This engine proved more efficient than Lenoir's design and was successfully marketed for industrial purposes. The design was later improved by Gottlieb Daimler who focused on making the technology practical for use in automobiles most notably by incorporating a gasoline carburettor. In 1890, Wilhelm Maybach built the first four-cylinder internal-combustion engine. Both Maybach and Daimler were originally employees of Otto's company but left in 1882 to form their own company. Over the same time period the two-stroke internal-combustion engine was being perfected. In 1867, Sir Dougald Clerk invented the first two-stroke internal-combustion engine. The design was later simplified by Joseph Day in 1891. -The four stroke cycle explained.   Click here! -Check out these animated engines!  Click here! -Learn more about various types of engines (Click on these links and enjoy) How Engines Work - How engines work -Animated engines -Basic automotive engines -The 2-stroke diesel -Diesel history and facts -Look at the evolution of cylinder head an dvalve locations. -"Click here" to see a flathead V-8   Note valves in block -Click and see  the "F" head (intake valve in head exhaust valve in block) -Click here to see the modern "I" head (with both valves in head!) -Hemi heads and what the fuss is all about                 Your Honda Engines                       -Click here to view Hodna GC160 engine parts How to: Plastigage main and rod bearings How to read a micrometer -What's a Flymo? -Subaru Justy 3 cylinder with a CVT? [Link]Tool Box [Link] Otto Cycle 4 stroke diesel          Two stroke diesel -Basic Electricity Links- -ELEMENTARY ELECTRICITY -VOM basics (using a volt, ohm, milliamp meter) -American Wire Gauge (AWG): Diameter in Inches -Ohm's Law explained -Ohm's Law: Calculators  "Easy to use" -Electric Motor Basics Period B Exam Home