51, Past Events

Old Yao had lived his entire life being accustomed to all sorts of turmoil, yet he had never seen the Water Solidification technique.

Above, a crow looked on for a long time before it couldn't help but fly to the counter to take a closer look.

When Wu Yun tried to take advantage of the situation to pounce on it, the crow effortlessly brushed it away with a wave of its wings.

Old Yao looked up at Chen Ji, "What is the principle behind this?"

Chen Ji was in a dilemma.

When the temperature of a saturated solution decreases, the solubility lowers, and crystals precipitate out.

It was a simple statement for him but explaining it to someone from the Ning Dynasty would require starting from a distant beginning.

Old Yao fiddled with the small crystal, wondering how a bowl of water could boil and boil yet eventually turn into ice—it didn't even feel cold.

"What is this thing, lad?" Old Yao asked in confusion.