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Made by Manish Kumar.
"Look down at the veins tracing their way up your fingers. They are made of stardust. This is a truth rooted purely in science, one of the many that make the subject beautiful to me. However, it is a shame most science students will not realise this during the course of their studies. What could have been a passion for astrophysics becomes instead distaste for formulae of elliptical orbits students are unable to fully comprehend. Were I to change the way science is taught in institutes, I would encourage appreciation for the implicit over memorisation of the explicit, nurture understanding and curiosity for derivations over worship of formulae, and demonstrate practical applications to clarify ambiguous theory." - Sahr Jalil 2011
My friend Sahr, wrote this for our team's evaluation form to LUMS PSIFI 2012. The question was, "How would you change the way science is being taught in institutes?"
Science cannot be taught just based on theory, but it needs to be taught based on observation, something formula and rote-learning cannot teach. And this example, is perfect to reflect over this thesis.
Step 1: Definition
The Bernoulli's Principle was a physics principle formulated by Daniel Bernoulli that an increase in the speed of a fluid produces a decrease in pressure and that a decrease in the speed of a fluid produces an increase in pressure. The principle states that the total energy of a moving fluid remains constant at all times. Therefore fluid pressure is inversely proportional to fluid velocity.
An Aeroplane relies on Bernoulli's Principle to generate lift on its wings.
A Helicopter uses the same method to generate lift on its wings.
A Race-car uses Bernoulli's principle to stay on the ground (down force).
An Insecticide Spray also uses Bernoulli's Principle to spread out the spray over a larger area.
A Bunsen Burner
Ping Pong Ball Experiments
Lets first look over one practical application and then demonstrations and then more practical applications. :)