MTL - After Retiring the Engagement, Master Si Chased His Wife To the Crematorium! (Turns Out, I'm from a Real Aristocratic Family!) - Chapter 759 fetching water from bamboo basket

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.

Yang Yi crossed over the world with a storage space with him. He ended up in some desolate wilderness populated by flying beasts and dangerous predators and also crawling poisonous bugs and snakes. To prevent getting bitten in the ass by venomous bugs when going to the toilet, let the great infrastructure begins –
Our goals are:
Eat well till full stomach.
Having clothes to wear but also being good looking.
To have a house that could cover all seasons.
Roads that leads to every place; develop agriculture, industry and commerce together.
No shortage of both material and spiritual needs.
He was DETERMINED to build a safe, comfortable and prosperous modern city in the wild world together with the native tribe with max efforts.

- Description from Novelupdates

Seth Zephyr is the prodigy of the Zephyr Noble Household, who will one day be regarded as the strongest Mage in the entire world.Compared to him, his twin brother Ashfelt Zephyr is completely unimpressive.He is untalented, mediocre at best, and is merely riding on his brother’s coattails as they both manage to get into the Akashic Magus Academy. However, what many don’t know is that Ashfelt is hiding a little secret of his own.… He was reincarnated from Earth into a Fantasy Novel, and now he must see this story to its perfect end if he is ever to return home.How is an Extra supposed to do all of that when he is a completely useless character in a world that cares only about talent and power?It’s simple!“I will use all of my knowledge of this world to the fullest… and make sure you fulfill your destiny, Seth! No matter what!”Tags: Transmigration. Extra. Action. Adventure. Magic. Academy. Antihero. WeaktoStrong. Overpowered. Romance. Superpowers. Strongactingweak. Mystery. BeastTaming.

"Your bed is cold," spoke a voice in the room that had her eyes go wide in fear. Nervously, she turned around, gulping softly to see a shadow on her bed as if someone laid down there. The man who had been lying down sat up emerging out from the shadows where he had been waiting for her.