There's Something Wrong With This Account - Chapter 494 - : 494, [Mystery of the Green Pearl]

A scientific genius named Thomas Harrier was transmigrated to an imperial prince body after a car accident that took his life. He found out that he is in a world similar to our own with a timeline akin to early twentieth century. The body that he is occupying was the imperial prince of a failing empire who suddenly rose to power after a successful assassination attempt of his father. Unaware that the attack is just the beginning of what is to come. He faces many challenges throughout. Will Thomas Harrier be able to live his second life in peace while running an empire and getting it back to its former glory? Or will he succumb into a conspiracy lurking within the country's borders?

Expect some:

Cold war era techs.

Super battleship with advanced electronics, propulsion, and fire control systems?
Helicopters?
Missiles?
Modern medicines and equipment?
AC-130?
A nuke?
Challenger or Abrams or Leopard?
F-4 Phantom or MIG-21?
Colored TV's.

Everything!!!

PS. Cover not mine, I just found it on google.

Just as nuclear weapons are merely a by-product of science, immortality is but a small gift in the pursuit of the Dao.The patriarch of the new method, the great sage and virtuous teacher, Zhen Fa Zhenren, the strongest cultivator in ten thousand years, is recruiting personal disciples. The reference books are as follows:“Topology in Talismans—Starting with the Little Rain Talisman”“Artificial Intelligence Research in Magical Artifacts: A Preliminary Exploration of Artifact Spirits”“Elemental Decomposition of the Nine-turn Golden Elixir”“Basics of Formation Pathways”Note: Preference will be given to those who have published papers in the Journal of Immortal Dao.

Shock! The Eye-Candy of the Entertainment Industry is Reborn as a Top Student!The niece of the Zhang family is said to be the reincarnation of the God of Literature. From childhood to adulthood, she has never scored second place in any exam. Even on the day of a test, when she had a fever of 39.9 degrees, she still effortlessly wrote like a supernatural being—truly amazing.When neighbors talked about this girl, their envy and astonishment were indescribable.This girl was nothing short of a Tsinghua or Peking University candidate; the Zhang family’s ancestors must be smiling from their graves.“Have you heard? That Zhang family girl topped the citywide high school entrance exam again. City No. 1 High School and Experimental High School nearly fought at the Zhang family’s door to recruit her...”“What’s that? The principal of Lanya Noble High School even came with a million yuan to visit her…”The world of a top student is beyond our understanding!——The world of a top student is very lonely!——When one possesses unparalleled beauty but lacks status and power to match it, this becomes the root of all suffering.In her past life, Shen You'an refused to compromise with the hidden rules of the entertainment industry. Her life was one of hardship and destitution, ultimately ending in her dying alone on a snowy winter's night on the streets.Once celebrated as the stunning but talentless beauty of the entertainment world, she left quietly and tragically, without drawing attention from anyone.When Shen You'an opened her eyes again, her firefighter father had just passed away in the line of duty.“Ding.” Your System for Top Students has arrived. Please sign for it.She cut her long hair, put on glasses, and concealed her beauty. Thus, she began her journey to becoming a top student.Until she gains the strength to protect her unrivaled beauty, she would rather let her brilliance be hidden than become a target of envy and harm.

Ethan Millers was just an ordinary man with an ordinary job — until one unplanned act reset his karma to zero. In a universe built on balance, this was not a miracle... it was an error.Erased from the world, Ethan awakens in a place without time or space — the No-Where. With nothing but his thoughts, he spirals into madness, invention, and eventually, creation itself.He imagines powers, technologies, divine systems, and worlds beyond comprehension — until the void bends to his will.Now, known as Zane Creed, the strongest existence in the cosmos, he descends into a new world with overwhelming knowledge and unimaginable power.And what does he choose to do with it?Become a teacher.After all, what better way to reshape a world… than to teach it?