Lady Lin’s First-ever Journey to Immortality - Chapter 487 - Teaching Thee the Holy Spell

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 a seven-day slumber, Chen Yun discovers that his body is undergoing inexplicable metamorphoses that cannot be explained by science.Evolving flesh, unimaginable abilities, mystical secrets...All his previous pursuits now seem trivial, including money and career.The existence of a mythical realm in fantasy also doesn't seem too far off.

Lu Chen transmigrated to the Great Sum Dynasty, becoming the Ninth Prince of the dynasty.

Unlike the transmigrators in novels, Lu Chen didn’t have extensive engineering knowledge, nor did he remember much classical poetry.

In order to avoid getting involved in the succession struggle, Lu Chen could only lie low, planning to enjoy a quiet life of splendor and wealth.

Due to his mother’s status, Lu Chen was eventually granted a marriage by the Emperor and was assigned to be Prince over a bitterly cold territory in the north.

Just when Lu Chen thought he was going to decay in such a manner for the rest of his life, he activated a system on his wedding night.

As long as he sired a heir, Lu Chen would be able to receive rewards and even enhance his own power.

Years later.

Lu Chen marched into the capital with a million-strong army to support the Emperor, and everyone was dumbfounded.

“Wasn’t this guy a useless Prince? Where did he get a million-strong army from!”

“What’s happening, how could he possibly be a Grandmaster?”

“Turns out the Ninth Prince’s decadence was all an act!”

……………………………………………………………

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“What? The wild chickens I raised are pure blood phoenixes? ““What? The carp I raised are true dragons?”With a wave of hand, the river was cut off; with a slight stamp of foot, the mountain collapsed.A group of incredibly powerful cultivators knelt in front, worshipping and calling ‘senior’.“What the hell wrong with this world?”Li Fan shouted,” Oh no, that’s impossible!”“How could I possibly be a Supreme Master?!”