The novel is titled After Reincarnating as a Good-for-Nothing Legitimate Daughter, I Conquered the Cultivation World with Science
[One-sentence synopsis + mindless fun + beginner writer, please be kind if it's not your thing]
"When a modern-day genius student becomes a good-for-nothing legitimate daughter, scientific cultivation turns the cultivation world upside down. Wait, why has that aloof ancestor fallen for her first?"
"The cultivation world doesn't believe in science? Then I'll teach them!"
Su Wanhe, a genius physics student from the 21st century, triggers an ancient jade pendant while saving a companion and transmigrates. When she opens her eyes, she's become a good-for-nothing legitimate daughter abandoned by her family, and someone has thrown her off a cliff ten thousand feet high!
"No spiritual root? Then let's use the kinetic energy theorem to break the formation!"
"Alchemy is too hard? How about a little chemistry?"
"The heavenly tribulation is too fierce? Quantum mechanics will teach you how to exploit a bug!"
Just as she uses scientific thinking to crush her opponents, she accidentally breaks into the forbidden grounds of a living relic from the cultivation world.
Mo Xuanqing, the supreme ancestor of the cultivation world, has been cold-hearted for a thousand years, but this strange young woman makes him break his vows.
She calculates heavenly tribulations with calculus, crafts magical treasures with the periodic table, and even... insists that dual cultivation obey the law of conservation of energy?
"Ancestor, dual cultivation violates the first law of thermodynamics."
"...I am the law."