Stranger's Handbook - Chapter 142: Returning Home for a Short Time

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.

Science and Technology Library: The supreme state of science is theology; an accidental rescue, let Chen Mo get a technology library that collects endless technology, the story begins…

- Description from xbiquge translation

Shocking! The Tyrant's Group Pampered Baby Is Heavenly Dao's Own Daughter【New Book “Exile? Extinguish the Kingdom? She Empties the Treasury and Rebel with Her Baby” Released】【1V1, Sweet Pampering, No Abuse】Bai Xilie, the tyrant who founded Great Chu, accidentally lost his only daughter during the chaos of war! After finding her again like a madman, he instantly transformed into a daughter slave, showering her with love!Unfortunately, not long after Great Chu was founded, the national treasury was empty, and rebellions broke out everywhere, with remnants of the former dynasty surfacing one after another!Bai Zhi'er, as the own daughter of Heavenly Dao, was utterly fearless: “Father, don't be afraid, I've got this!”Natural disasters and human calamities? All resolved with Jinli's fortune!Fake princess vying for favor? Slap her face swollen!People's literacy is low? Establish the Wen Mansion to bring about an era of flourishing scholarly contention!However, Bai Zhi'er always remembered Heavenly Dao mother’s advice: transform five major villains to stabilize her father's throne!…Not long after, each villain more ruthless than the last joined the team of the great tyrant, pampering the little princess Bai Zhi'er to high heaven!The Princely Heir skilled in both poison and medicine: “Saying Zhi'er is a fake princess? Do you not want your eyes for my medicine?”The temperamental Third Brother: “Who bullied my sister? I'll lead troops to flatten your whole family!”The reborn chief minister of nobility: “Bai Zhi'er is my sworn sister, she must not cry, or I'll have you die!”The Emperor from an enemy kingdom as the godfather: “If you are wronged in the Chu Kingdom, we from Great Qin will exact double return for you.”Four villains are all settled, only the last one remains, and he doesn't want anything, leaving the little one at her wit's end!The handsome, paranoid Demon Lord youth smiled unrestrainedly: “Zhi'er, the world is vast, yet aside from my embrace, you're not allowed to go anywhere, come here for a hug.”

Freak Xie Ao Yu originally had no way of cultivating battle qi but, by accident, he got a mysterious godly pellet and he received a supreme emperor blade. That changed his destiny and from then on, he felt the real meaning of life and he made original time and space related battle skills and decisively battled ancient, huge clans and hundreds of continental clans in the Qi Ao continent.

Clouds formed with a flip of a hand and rain formed with another flip. He left the strongest mark in tens of thousands of years of history and created glorious chapters about a tyrant’s anger, blood shed for thousands of miles, the skies hissing from mad blades, and the allegiance acknowledgement of all times.

- Description from Novelupdates