A BUNCH OF MOLECULES TRANSPORTS US

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Can you believe that a handful of gas molecules carry and transports us? yes, that is true.

We know the air is filled at high pressure in vehicle tires. High pressure means; a very large number of molecules bang the walls of the Tyre with great force. The force given by these molecules bear our weight; the vehicles' weight and carry us.

In the engine, a set of cylinders and pistons arrangement is present. Inside the cylinder, the mixture of air (oxygen) and petrol vapor is ignited by an electrical spark. It then explodes. Explosion means Sudden expansion of gases; gas molecules gain energy; move faster. These molecules push the piston. A visible mechanical movement is created by invisible molecules.

These movements of pistons are converted into rotational motion which will then power and drive the wheels. The rotations of wheels transport us. Hence, just a collection of molecules is responsible for our journey.

The steam engine which propelled the trains of easter years also works on the same principle. Here vaporized water molecules powers the engine.

In the case of the rocket; liquid oxygen and liquid hydrogen (an example) burn providing very hot gases. These gas molecules escape through the nozzle at the back with great force. This force creates the reaction force which propels the rocket forwards. Hence gas molecules landed men on the moon.

Air molecules flying under the wings of the plane lifts it up. Helicopter, Drones, air balloon, glider manipulates air molecules and flies.

When we drink fruit juice using a straw, the air molecules push the liquid into the straw. Air molecules can push heavy mercury liquid into an evacuated glass tube up to 76.4 cm. That is the power of moving air molecules. That is what we call standard atmospheric pressure.

The invisible power of gas molecules is great.
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