The Lucky Heiress - Chapter 38 - : Chapter 38 Duel Results__1

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.

The former top engineering student Wei San transmigrated into an interstellar child who was deprived of education. By picking up garbage and turning waste into treasure, she finally saved a sum of money before the opening season of school and immediately signed up.She planned to become a Mecha Engineer in the future. It was said that it can make a lot of money and was closely related to her own original specialization. Plan pass √Unexpectedly, because of her greed for cheap tuition fees, Wei San reported to the wrong major and became a mecha individual fighter——those violent maniacs who licks blood all dayWei·Gentle & Quiet·Impoverished·Engineer: “……”However, the environment could not make her give in, and Wei San decided to learn by herself in her spare time.During the training period of a certain competition, the media interviewed and photographed the individual fighters of each school in turn, which was broadcast live on the whole interstellar network. The audience could see that everyone was training desperately, such as gravity pressurization, close combat, long-distance entanglement and so on.【YY’s melee is too strong. Who dares to melee when the light saber is out!】【ww’s whipping skills are too superb, NB(F****** great)! ! !】Then Wei San was recorded sitting cross legged in the training hall, looking down and concentrating on reading a book.【What’s that Wei San looking at?】As the camera zoomed in, the cover of the book in Wei San’s hand was immediately seen clearly by the whole star network: “Qing Fei teaches you to become a mecha master in 21 days”Audience：……As long as one hears the title of the novel, they could tell it wasn’t read by serious people.The next day, the star net headline: A military academy student was overwhelmed and mentally disordered during training, trying to change careers.

In the far future humanity is threatened by monstrous beings called kaiju now humans have expanded across the galaxy with the development of new techniques and fleets of mechs.Alto a young boy with dreams of becoming a great mech pilot is forced to be a mech designer. He finds a strange technology that opens his eyes to the vast secrets of the galaxy, now with a new purpose Alto must become something the world has never seen before.A/N: Just wanna do a good sci-fi book

Civilization is destroyed and records lost. Only Dudian survives in a cryogenic sleep. Three hundred years later, Dudian wakes up and must become Dean to survive. Who can he trust in this world overrun by monsters without and within?

- Description from Novelupdates