Ancient scientific and technological poems

Half an acre of square pond opened, and the sky was overcast.

Why is the water in the pond so clear? Come for the source of living water!

Last night on the Ross River, the huge warship was as light as a feather.

It used to take a lot of effort to push it, but today it can move in the middle of water.

Su Shi's title Xilin wall;

Seen from the side of the ridge, it becomes a mountain peak.

The distance is different.

I don't know the true face of Lushan Mountain,

Just because I'm in this mountain. -philosophy: the authorities are fascinated, and the onlookers are clear.

Yu Qian s Ode to a Lime;

A thousand hammers cut deep mountains,