Introduction & Brief Review of The Structure Of Earth

 

The Structure of Earth

3.1 Introduction

  • Brief overview of the topic

Earth is the only known planet that supports life in the universe. It is a complex structure that consists of many components that combine to form an inhabitable environment for living beings.

Layers of Earth: There are three main layers of the Earth. They are:

Crust

The crust is the outermost layer of the Earth. It is the thinnest layer and ranges from 5 to 70 kilometers thick. This layer is divided into two major types, continental crust, and oceanic crust. The continental crust is thicker and has higher levels of silica and aluminum compared to the oceanic crust.


 

Mantle

The mantle is the second layer of the Earth that lies below the crust. It is the thickest layer and accounts for approximately 84% of the Earth's volume. The mantle is further divided into two parts - the upper mantle and the lower mantle.


 

Core

The core is the innermost layer of the Earth. It is divided into two parts - the outer core and the inner core.


 

Outer Core

The outer core is liquid and is composed mainly of iron and nickel. It lies between the mantle and the inner core. The movement of the outer core generates Earth's magnetic field.

Inner Core

The inner core is solid and is composed mainly of iron. It lies at the center of the Earth.

Conclusion

The structure of Earth is essential to our understanding of the planet. The layers of the Earth combine to make a dynamic and ever-changing planet that supports life. Understanding the Earth's structure is important to understanding natural disasters such as earthquakes, volcanic eruptions, and landslides. As we continue to study the Earth's structure, we can better predict and prepare for these events.

Chapter-3 The Structure of Earth: What Lies Beneath Our Feet

 

Chapter-3

The Structure of Earth: What Lies Beneath Our Feet

3.1 Introduction

  • Brief overview of the topic
  • Importance of understanding Earth's structure

Layers of Earth

Crust

  • Composition of crust      

  • Types of crust
  • Thickness of crust

Mantle

  • Composition of mantle
  • Upper and lower mantle
  • Physical properties of mantle

Core

  • Composition of core
  • Outer and inner core
  • Physical properties and conditions in core

Plate Tectonics

Theory of Plate Tectonics

  • Historical background
  • Evidence supporting the theory
  • Key concepts and terminology

Plate Boundaries

  • Divergent plate boundaries
  • Convergent plate boundaries
  • Transform plate boundaries
  • Hotspots

 

Effects of Plate Tectonics

  • Volcanoes
  • Earthquakes
  • Mountain building
  • Oceanic and continental crust formation

Earthquake Seismology

What are Earthquakes?

  • Causes of earthquakes
  • Types of earthquakes
  • Earthquake waves

Studying Earthquakes

  • Seismometers and seismographs
  • Earthquake magnitude and intensity
  • Plate motion and earthquakes

Prediction and Mitigation of Earthquakes

  • Earthquake-prone regions
  • Early warning systems
  • Earthquake drills and safety measures

Conclusion

  • Recap of key points
  • Importance of studying Earth's structure and processes

FAQs

  1. What is the thickest layer of Earth?
  2. How does plate tectonics influence the formation of mountains?
  3. What is a seismo-meter and how does it work?
  4. Can we predict when and where an earthquake will occur?
  5. How can we prepare for an earthquake?

Title: The Birth of Great Karna: A Tale of Destiny in the Mahabharata. An epic child born without any intercourse in a normal and moral sense (post marital etc) and with congenital problems which turned out to be boon to him, when grown up

 

Title: The Birth of Great Karna: A Tale of Destiny in the Mahabharata. An epic child born without any intercourse in a normal and moral sense (post marital etc) and with congenital problems which turned out to be boon to him, when grown up.

The Indian epic, the Mahabharata, is an encyclopedic coverage of ancient history (?).

Whatever is here, may be found elsewhere; what is not, cannot be found anywhere    else,”

The Epilogue to the Mahabharata exclaims with pride (18:56-33).

As we all might agree that The Mahabharata, one of the greatest epic narratives of all time, unfolds a multitude of fascinating characters and intricate story lines. Among these characters, Great Warrior Mahamati Karna stands out as a figure of profound complexity and unwavering loyalty. Karna's birth is shrouded in mystery and carries an undeniable sense of destiny. Let us delve into the captivating story of the birth of Karna and understand the circumstances that shaped his extraordinary life.

The Divine Origins: Karna's story begins with the princess Kunti, the mother of the Pandavas, who received a boon (in a form of mantra, which is to be chanted by her, to call upon the desired God) from the sage Durvasa.The boon bestowed upon Kunti enabled her to invoke any deity of her choosing and bear a child with their blessings. Getting child from her chosen Deity just by blessings? The God has just to say “putraya bhava” as a blessings and Kunti will get that child into her womb? Is this a shear miracle or magic? Or it is altogether a different methodology, different science which is yet to be found to be by us? It is undoubtedly sure, as on date, there are huge portion of couples all over the planet, who curve for a child of their own (can’t expect a child from a God), yet they do not have any such blessings or boons for them to fulfill their long standing desires and dreams. We have however achieved to have child through in-vitro fertilization, induction of ovulation etc. But these special technologies are also not full proof. The health of both new born and mother remain at risk till the pregnancy matures successfully. 

 


                                           SUN GOD GIVES BLESSINGS TO KUNTI

Overwhelmed with curiosity, Kunti tested the boon and called upon the Sun God, Surya. As a result, she conceived a radiant and divine child. The word conceive is much interesting phrase in the line. In our customary practices, the blessings given either by touching the head, forehead or at best chin. Then how the blessings of The Sun God got into the virgin and unpracticed womb of Kunti? In Mahabharata, nowhere it is mentioned that after receiving the child as blessing from The Sun God, Kunti Devi had restricted her daily chores of life. She was unmarried princess, staying with her father in her palace. Nobody in the palace (out of hundred people at least, other than her parents, personal servants, friends) could observe her pregnancy growth and body deformation! Or, was it instant, then and there? If it is so, which might be the possible and plausible case, in her case, then it was the marvel of science, first time experienced by a Earthling. Pritha was originally the daughter of Surashena and Marisha of Kunti Kingdom. During that time, Jarasandha, king of Magadah, was the most powerful king of Bharat. Surashena and Marish left their kingdom in his fear and given their child Kunti to King of Bhoja who was named as KuntiBhoja.He re-named Pritha as Kunti.   

                                                             KARNA

 Vaisampayana told King Janmenjaya (fourth generation after King Yudhisthir) that Karna came in Kunti's womb in Shukla paksha of the tenth month of the year. "Vaisampayana said, 'O Lord of the earth! In Shukla paksha of the tenth month, like the Lord of the stars in the sky, a child was conceived in Pritha's womb. "I personally emphasize upon the time period of tenth month (i.e. in a normal pregnancy of any human, the gestation period is Nine months nine days since conceiving, which is definitely falls in the tenth month). So the period of 289-290 days time span, during Princess Kunti’s pregnancy, passed away as a few hours or may be as few moments?     

So according to the epic, the age of Karna was around 100 when he died at Kurukhestra battle field on 17 th day of the war. He was killed by third Pandava Arjun.

Although Karna  was a portion of Surya, but he was the rebirth of Dambhodbhava (demon)

It is high time; we must process in our thinking, with scientific knowhow to corroborate the stories / histories/ myths or something real extra ordinary, in this great Epic written by Rishi Veda Vyas. But, how? Recently National Institutes of Health, 2016 has attempted the magical births of major character’s of the Epic, through Reproductive Endocrinology studies and its effects on the new born.     

We approach the Mahabharata through the prism of reproductive endocrinology, searching for examples of reproductive health and related disease in this voluminous text. We limit ourselves to endocrine episodes described in the Mahabharata as published by Tirumala Tirupati Devasthanams. Descriptions of episodes related to reproduction are listed here, to provide fodder for the endo-crinologically minded brain. Through this, we hope to stimulate interest in ancient Indian literature and encourage a literary “forensic endocrine” analysis of events relevant to our specialty.

In the Mahabharata, it is clearly mentioned that Karna, son of Kunti and Surya, the sun god, was born with natural armor and earrings. This phenomenon suggests a congenital anomaly. However, Karna grew up to into a handsome and capable prince warrior, with no suggestion of any of the disabilities associated with most congenital syndromes. Rishi Ved Vyasa, the author of the Mahabharata, has provided detailed word pictures of events and personalities. It is hard to believe, therefore, that he would have confused “natural armor” with a congenital ichthyosis. Was it not a Precocious Growth? Which might have been developed on the child due to unhealthy copulation? Karna was not responsible for his abnormality!  ” Plausible abnormality include thick vernix caseosa, ichthyosis vulgaris, and external earlobe anomalies.[15] (courtesy Dr. V Srinagesh, Dr. Mudita Dhingra).

Adjective: precocious

1.            (of a child) having developed certain abilities or inclinations at an earlier age than is usual or expected.  Inclinations measures a person's natural tendency or urge to act or feel in a particular way; a disposition. [Dictionary Definitions from Oxford Languages]

                       2.                Vernix caseosa is a white, creamy, naturally occurring bio-film     covering the skin of the fetus during the last trimester of pregnancy. Vernix coating on the neonatal skin protects the newborn skin and facilitates extra-uterine adaptation of skin in the first postnatal week if not washed away after birth.

 For premature babies today even, a congenital disease is mostly associated called as Autosomal Recessive Congenital Ichthyosis (ARCI). The mythological “Kavach-Kundala” of Mahavir Karna might be a result of this disease. We actually do not know from the Epic, how much month’s matured baby was Karna, at his birth moment?  How an ignorant virgin girl either know this? Especially when she was afraid of social backlash! Question on her princess hood? Her father’s stature? She was just got time to abandon her unwanted child at the earliest. 

 

                                                   PRINCESS KUNTI 

Children with ARCI are often born prematurely encased in a collodion membrane, a taut, shiny, transparent membrane formed by the thickened cornified layers of the skin, resembling plastic wrap. In the rarest form of ARCI, harlequin ichthyosis, babies are born prematurely covered in thick, hard, armor-like plates of cornified skin separated by deep fissures. The taut skin results in deformation of facial features, microcephaly, lack of eyelashes and eyebrows, and sometimes alopecia.

Microcephaly is a condition where a baby's head is much smaller than expected. During pregnancy, a baby's head grows because the baby's brain grows. Microcephaly can occur because a baby's brain has not developed properly during pregnancy or has stopped growing after birth, which results in a smaller head size.
Centers for Disease Control and Prevention (.gov)

https://www.cdc.gov › ncbddd › birthdefects › microcep...

 In the methodical search to the Epical fact of Great Warrior Karna, I have reached to the point of understanding that the illegal child of Princess Kunti, Karna was a congenital sufferer due to his mother’s improper pregnancy. He was probably be a harlequin ichthyosis patient, but could able to survive with that, after his abandonment, till the charioteer Adhirath had picked him up from the river flow. Observing the ornaments and dress materials, Adhirath understood, this is an child from the higher status of the then society. They had no children of their own. So, it is absolutely natural, he had not made any hue and cry. Accepted and made the child as bonafide son being his father. A relatively common man and not that educated, Adhirath could not identify the child’s congenital problems possibly.   

This line of thought through the angle of endocrinology related to pregnancy, while extending to understand the very uncommon birth marks or birth possessions of Karna might generate, out of box thinking, amongst my ardent readers.

There is a more intrigue unknown things still looms overhead- I will write about it soon.  

Till then Chow……   

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