The next strike was on a raised spot at the edge of the concave surface. After repeating this a few times, he flipped the stone axe over and repeated the step.
By chipping away at both sides, countless small indentations overlapped, creating a sharp, jagged edge.
"I'm not sure if this method exists in other countries, but in our ancient Great Xia, it was known as the Acheulean technique. Back then, people would strike stones against each other this way to create a thin edge, allowing it to function as an axe."
"But we're in the modern era. We can process it further with other methods to make the axe even sharper."
He stood up. Instead of lingering by the creek, he headed toward the beach.
This was his first time down at the shore. From a distance, he could see a large, strangely shaped Mangrove Forest growing at the edge of the river valley. It looked like countless tree spirits had hiked up their pant legs to stand guard on the coast.
