About a kilometer from our house there is a railway line, along which trains pass every half hour. How do I know about this? Very low-frequency “thunderous” peals with the addition of infrasounds are well listened to. And it occurred to me that these trains were going too “loud”, there was probably some kind of resonator that amplifies these rumblings at the lower limit of audibility with the transition to infrasound.

What is this resonator?

Possibly, there is a huge karst cave located under the city, a cavern in the earth’s crust, close to the surface, and it serves as a resonator.

And this means that at one far from happiness moment, the entire city of New Haven, Connecticut, may suddenly fall into this hollow cave of crust!

I think geologists should check this assumption and, if it is correct, fill the cavity with at least water or a clay solution used in oil production in order to ensure its stability for at least decades (if, of course, it has walls INSOLUBLE in water. If it is a salt, limestone, gypsum, dolomite (water-soluble) cavity, then it is necessary, on the contrary, to somehow isolate it from groundwater. Maybe concrete supports should be made through the boreholes?

After all, Venice for centures stands on millions of piles driven into the bottom of the Venetian lagoon…

Faciant meliora potentes.

26 VI 2026