In his opulent chambers, Satyaki sat cross-legged on his lavish bed. His room was filled with the aroma of incense and the soft rustling of parchment as he meticulously studied human anatomy and nerves. The prince furrowed his brows in thought, occasionally marking important details with a quill.

Suddenly, the curious and carefree Satyashree with his fair skin glowing in the soft dawn glow, crawled towards Satyaki, his eyes wide with wonder. Satyaki, momentarily distracted from his studies, looked down at his little brother with a gentle smile. With nimble movements, Satyashree clambered onto his brother's lap, his small palms of a reddish hue, reaching out to grab the parchment that intrigued his elder brother.

Satyaki embraced his brother, allowing him a closer look at the intricate diagrams. Satyashree's eyes widened in wonder as he gazed at the depictions, trying to make sense of the unfamiliar shapes. Amused by his little brother's curiosity, Satyaki chuckled softly, thinking the concepts were beyond the child's comprehension. As Satyashree looked up at Satyaki with a puzzled expression, Yuyudhaan couldn't help but playfully pinch his brother's cheek.

"Ek din tumhe bhi padha dunga yeh shalya-chikitsa, Yuyudhawan. Kintu abhi tum khelne mei dhyaan lagao." Satyaki said as he gently put Satyashree down on the bed. (Shalya-chikitsa - Surgery)

He picks up a few colorful wooden toys scattered nearby and places them in Satyashree's tiny hands. With a playful twinkle in his eye, Satyaki gestures towards the toys, encouraging Satyashree to explore and play with them instead.

Satyashree's eyes light up with excitement as he reaches for the toys, his tiny fingers grasping onto them as he explores each one with curiosity. The room fills with the sounds of his soft cooing. Meanwhile, Satyaki returns to his studies, his mind focused on the intricate details of human anatomy.

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It was a tranquil day, the Pandavas and Kauravas sat on mats arranged on the lush green ground. The gentle winds whispered through the leaves, carrying the scent of blooming flowers. Kulguru Kripacharya occupied a high seat under the shade of a majestic tree, imparting his teachings with authority.

Yudhishthir, as the eldest prince among all, naturally sat in the foremost position closest to Kripacharya, displaying reverence and discipline. Arjun's curious gaze towards Kripacharya was filled with his thirst for knowledge and understanding. Bheem on the other hand, had an intellect so sharp that he'd quickly grasp the teachings even before Kripacharya finished speaking. Even the twins, Nakul and Sahadev, despite being youngest, effortlessly absorbed the concepts.

Meanwhile, the Kauravas sat with disdain, casting envious glances at the Pandavas who seemed to excel in their comprehension. They watched their cousins with jealousy and skepticism. Observing the discord, Kripacharya, with a commanding presence, snapped his fingers, drawing the attention of the Kauravas.

"Duryodhan," He posed a question from the lesson being taught, "Ped se fal katt ke prithvi par kyu girta hai ?"

"Um.. Acharya woh...." Duryodhan, caught off guard, faltered and fell into silence, unable to respond.

Disappointment shadowed Kripacharya's face as he shook his head at Duryodhan's failing attempt. Turning away from Duryodhan, Kripacharya's gaze fell upon Yudhishthir, "Tum batao vats."

"Kyuki prithvi ke paas sabko swayam ki oor akarshit karne ki shakti hoti hai." Yudhishthir answered the question flawlessly, earning a nod of approval from the revered guru.

Then, in a stern tone, Kripacharya chastised Duryodhan, "Pandav swayam par dhyaan dete hai. Unki chhod, tum apna dekho. Abhi padhaya tha maine, kintu tum sabka dhyaan kahi aur hai."

The weight of his teacher's words hung heavy in the air as the young prince grappled with his emotions, humbled by the public display of his shortcomings. Duryodhan lowered his gaze, his face red with anger. His jaw clenched as he tried to regain his composure, his pride wounded.

As Kripacharya continued his lesson on the planetary sciences, Arjun raised a question, seeking clarification, "Acharya, kya yeh akarshan shakti keval dhara tak seemit hai ?"

The Kauravas groaned audibly, visibly annoyed at the prospect of the lesson being prolonged. They exchanged exasperated glances, eager to be done with the teachings.

With a patient smile, Kripacharya answered, "Nahi Arjun. Iss akarshan shakti se prithvi Chandra ko bhi apni oor khichti hai. Iss hi karan Chandra sadev prithvi ke chakkar kata karte hai."

Arjuna, undeterred by the Kauravas' impatience, posed his question with earnest curiosity, "Kya Chandra ke paas bhi yeh akarshan shakti hai ?"

Kripacharya nodded, "Ha hai."

"Yadi Chandra ke paas bhi yeh akarshan shakti hai, toh woh prithvi ko apni oor kyu nahi khichta ? Prithvi hi kyu khichti hai ?" Arjun asked again.

"Kitne prashn puchoge !?" Dushashan grunted in frustration.

Arjun, noticing the Kauravas' impatience, frowned but remained undeterred.

But Kripacharya was not ready to have any of it, "Tum paramgyaani ho na Dushashan ? Kadachit iss liye kabhi koi prashn nahi puchte. Aisa hai toh O mahagyaani, swayam Arjun ke prashn ka uttar dedo."

The Kaurava prince's eyes widened in surprise as he was put on the spot. Yudhishthir observed silently, while Bheem smirked at Dushashan's inability to answer. Nakul and Sahadev exchanged amused glances, enjoying the unfolding drama.

Scratching his head nervously, Dushashan struggled to come up with a response, feeling the pressure of the moment, "Iska uttar.... Umm.... Chandra akarshit nahi karta kyuki prithvi hi akarshit karti hai...."

Disappointed, Kripacharya shook his head and proceeded to answer Arjun's question with clarity and wisdom, "Aisa iss liye hota hai kyuki prithvi Chandra se aakar mei badi aur bhaari hai. Jo grah bhaari hota hai, uske paas utni adhik akarshan shakti hoti hai."

"Samajh gaya acharya." Arjun smiled and nodded in understanding.

Bheem asked, "Toh kya iss hi karan se sabhi grah Surya ke chakkar lagate hai ? Kyuki suryamandal mei Ravi hi sabse vishaal aur bhaari hai ?"

"Satyavachan Bheem. Mai aage yahi sikhaane wala tha." Kripacharya smiled, "Vayu jaisi buddhi hai tumhari."

The Kauravas grudgingly acknowledged the Pandavas' knowledge and wisdom, feeling a mix of jealousy and resentment.

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A/N

The concept of gravity has existed since Vedic era, where many places it is written that the earth has the tendency to attract objects towards itself. And how the sun attracts other planets towards itself.

However this phenomenon was named गुरुत्वाकर्षण much later by Brahmagupta in the 7th century.

And as per Shalya-chikitsa/ Shalya tantra, which is surgery, it was one of the eight branches of Ayurveda -

It is said that in Mahabharat, Satyaki had the knowledge of surgery. Since ancient times, Ayurveda has been very effective and advanced. Unfortunately, in the present only 4 branches are in practice.

And although it is said that Sushruta, the father of surgery, lived around 800 BCE.....  In his text Sushruta samhita he is mentioned to be born in the Vishwamitra lineage. When I checked Mahabharat, his name is listed in the middle among all the descendants of Vishwamitra.

So Sushrutra could've possibly existed before Pandavas, easily before 3500-3800 BCE and not around 800 BCE.