After confirming gravity as the anchor point, the only problem was how to convert the gravitational digits into length.
Moreover, it would be best if the results remained unchanged, regardless of the weight of the vessels used for measurement.
The Engineering Priests gradually stopped their lively discussion. They scratched their heads and wrinkled their noses, writing and drawing on the ground, but still couldn't figure it out.
Horn smiled and interrupted the Engineering Priests' discussion: "In fact, there are natural phenomena that are not interfered with by measuring instruments."
"What is it?"
Horn did not speak but pointed his finger to the corner of the small office building not far in front of him.
There, on a floor paved with stone and wood, stood silently a large pendulum clock, more than one person high, leaning against the corner.
"Ah, I understand." After the confusion and contemplation, a former clockmaker suddenly slapped his head, "It's the pendulum!"
