Pendulum may reveal gravity’s secrets

I have been obsessed with gravity since my teenage. It looks like another thing that we, as human, can’t wrap our head around. We need more and more “observations” and less “theorising”. We desperately need more ways to observe and “out of our head”, so to speak.

“The pendulum itself is not a quantum object. But it’s operating at the interface where gravity and quantum mechanics can play together.”