After Entering the Tang Dynasty, I Relied on Physics and Chemistry to Dominate the Court

When he woke up, Lin Chang'an, a college student, became a failed scholar with the same name during the Zhenguan period of the Tang Dynasty. Faced with the impoverished family and Li Zheng who was urging him to pay taxes, he silently took out his lighter. The next day, a "Fairy Glass Shop" appeared in Chang'an West City, and its transparent cups shocked the whole city. Lin Chang'an thought he could be a wealthy man safely, until the Turkic envoys presented the "magic iron", which no one in the civil and military dynasties could stop. He sighed and picked up the crucible and bellows: "This is high carbon steel. The quenching temperature is wrong." Hearing this, Li Shimin knocked on his door incognito late at night.