Physics is Influencing Your Life: Know How!

Did you know that we are surrounded by science everywhere in this universe? Chemistry, Physics and Biology, everything arose from the nature. Actually, science isn’t an alien subject that we as students have a misconception about. Science is the study of our very own nature! Among these, Physics is the most diversified field of all sciences. Physics is the science of assumption, which man recollects and gives it the form of instruments, machines and other varied disguises.

Let me lead you to one of the most amazing fact:
Can you recall the most famous dialogue of the Bollywood movie, Om Shanti Om?

“Itni shiddat se……..  ki saazish ki hai…..
Kehte hain agar ……….  koshish mein lag jaati hai…..”

Does it surprise you after knowing that this age old famed dialogue actually expresses the law of thermodynamics?

Now, let me introduce to you some of the most astonishing acts of science on which our everyday life is based.

The Science Behind Making Chapatis:

You must be accustomed to thesecond law ofThermodynamics. The law states as such,

” The two quarantined systems placed initially in separate but nearby areas of the universe, each in thermodynamic equilibrium with itself, but not inevitably with each other, are when  allowed to interact with each other, both the systems eventually reach a mutual thermodynamic equilibrium.”

When you prepare a dough, the kneaded flour contains a lot of water. After rolling the dough into a Chapati, it is placed on the hot pan. Soon, the sides of Chapati, touching the pan harden due to the heat, while the water in the dough converts to vapor. The bubbles in the dough continuously coalesce together as per the second law of Thermodynamics.

As you turn over the flat dough forming into a Chapati, the other softer side becomes hard too, due to heat. If this flipping is not carried out, the bubble inside due to immense pressure will break out from the upper side, forming holes in the Chapati. The bubble stays in building up in surface area, unable to break out since both sides turn hard. Finally, when the Chapati is thrown over the naked flame, the water vapor formed inside pressurize on the walls, filling the Chapati with hot air. This leads to the fluffiness of the finally prepared Chapati.

What Makes the Boomerang Return Back After Throwing it in the Air?

The great phenomenon known as gyroscopicprecession is the answer to your curiosity.

When you spin the boomerang in the air, you tend to move one wing of the instrument through the air faster than the other, relative to the air. As the boomerang hoard forward as a whole, an invisible lifting force on the upper wing which was made to spin faster is greater and thus results in an unbalanced force that eventually turns the boomerang. The conflict between the lift forces among the two sides is such that it tends to produce a consistent torque on the boomerang. This result in the turning of the boomerang, making it soar higher cutting through the air and gradually loops back around to the owner in a circle.

Do You Know Why is a New- born Baby Made to Make its First Cry Hard?

You must be aware of the renowned LaPlace’slaw. Isn’t it? The law states that:

“Wall tension is proportional to the multiple times of pressure and the radius of thin-walled or elastic spheres or cylinders.”

A new- born baby essentially needs to cry to initiate its process of first breath. In a newborn, the alveoli of the lungs are collapsed, which requires inflation to carry out the process of inhalation or breathing in air. When you blow up a balloon, a certain pressure applied to overwhelm the elasticity of a balloon in the process of blowing causes it to expand further. Therefore, when you blow a completely inflated balloon, it takes twice as much pressure and energy initially to expand. Thus, when an infant undergoes the traditional spanking on the bottom, it makes the baby ill at ease enough, making the effort for the first breath. The hard cry clears the tract at a common junction of breathing and voice box. This crying makes the child take its first breath in the world. Before birth, the alveoli were coated with fluid which has a higher surface tension than that of any normal surfactants.

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