Let's have some mechanics

In a world of computers and technology, the most of peoples doesn't even know how to change a wheel in his own car, and that is unacceptable.
I’m here today to talk about engines, first off all, Diesel Engines one of the worst, terrifing, polluting and tottaly wrong wonder of modern mechanical engineering.
So, ready?

Wow it's mooving! - Image under CC0 licensing

I can see it moving!!!

Yea! Exactly! Engines can move things, or maybe, they can create a mechanical movement that you can count as "Rotations per minute", but how?
That simple, if you want to move something, you have to burn it, and make it explode, that’s probably the best explanation of major scientific and mechanics rules of the entire world story.
So Diesel Engine is a type of “Internal Combustion Engine”, thats because the fuel is burned inside the engine, producing power.
The main difference between a petrol engine and a diesel engine is that the former needs a third element of shock that creates an explosion like the spark of a candle, the second one didn't need anything else that gasoil, high compression and air.
How it works
Easy!! There is a place inside the main engine, called cylinder, is a fantastic place, where one piston, driven from a connecting rod, start moving up and down, creating compression.
Just imagine your arm, moving inside a pringles tube with your fist closed thigth by 3 or four bracelets.

• Pringles tube = Cylinder
• Your arm = Connecting rod
• Your fist = Piston
• bracelets = Piston rings

Now imagine having your tight wristbands around your fist, and the function of these bracelets is to almost completely remove the distance between your fist and the walls of the pringles tube, what happens now, is that if you start pushing the arm in the pringles tube, you will create a compression.
this is basically what happens when a piston starts its "compression cycle" as shown in that wonderful gif downhere.

4 Stroke engine fases - Image under CC0 licensing

And Now? How can I make everything explode?

As said before, in a diesel engine we need 3 fundamentals: compression, gasoil and air, as shown in the pic, we have a valve that opens only when the piston in going down in the cylinder liner, that valve let the air come inside the "combustion chamber". And Now we have 2 of 3, You ready for the boom?
What we need now is to create compression with our new fresh air inside the combustion chamber, so we have to immediately close the air valve and start moving the piston upwards, when we are almost 3 quarters of travel, with a small nozzle placed in the upper part of our cylinder in the "cylinder head" we begin to nebulize the diesel inside the chamber.
the reaction is something of poetic, everything is now possible, we can move mountains thanks to... pollution.... pollution everywhere...

Thats ok, thats fine, this is all for now, i will go over for the complete cycles in the next article, and only if you all post a picture of you arm locked in the pringles tube... i deserve it...
See you all and thanks for reading
Bye!

Believe me I am really a mechanic, so I quote myself