"Cold in three nines, hot in three volts".

Now it has entered the dormitory, and many places have high temperature and long standby time.

Many people choose to stay in the room, blowing the air conditioner and eating watermelon.

But in ancient times, there were no fans and no air conditioners. How did they relieve the heat?

Quickly poke the video to see the ancients' "artifacts" for reducing the heat, and praise the wisdom of the ancients↓↓↓ Netizens: Calm and naturally cool, I also believe you old 6!

Responsible editor: [Li Ji]