Witcher: I Can Extract Everything - Chapter 214 - Sword Wind

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.

After Song Juyao died and emerged from the virtual world, she learned that her entire life had just been a reality show which was led and controlled by others.

One billion viewers watched this live broadcast, all of them pointing fingers at her and ridiculing her life whilst the director team thought up every possible method to design setbacks for her, pulling her into the mud over and over again.

Then, Song Juyao was reborn. This time, her memory was not suppressed.

This was a crazy world. People were discontent and bored of their lives. They had also lost their enthusiasm for various kinds of entertainment, falling to the point of seeking all sorts of thrills in order to arouse their emotions.

Later, they found a precious treasure. She was perfect. They held her in the palm of their hands and went wild for her. They even regarded her as a God and worshipped her fanatically.

- Description from Novelupdates

Facing bankruptcy, a beekeeper crosses over into a magical fantasy world, gaining the ability to control bee swarms. Leveraging magic, he cultivates diverse mutant bee species: efficient honey-collecting bees, formidable combat bees, and entirely new bee species with extraordinary abilities.He explores this fantastical world, bringing back various nectar-bearing flora for cultivation, creating magical honey imbued with enchanting effects, and distributing it to all corners of both worlds. While he becomes renowned as the Honey King of his original world and an elite beekeeper, his fame also spreads in the magical world, where he’s known as the Bee Whisperer of the Black Forest.The latest edition of the “Black Forest Adventure Guide” specifically warns: “Never attempt to provoke him, or his bee swarms will not spare you! Don’t ask me how I know!”

This is the story of how I became the greatest genius in the history of humanity, destined to go down in the annals of history for all eternity!This is the story of how I made humanity what it is today.It all began on a fateful night in New York. With a certain peculiar dream.The Universe is grand and mysterious. What's important remains hidden...