The Earth's attraction force
by Giuliana Rossi, Ist Naz Ocean Geof Sper -OGS, Trieste, Italy
A sinkhole, in the Classic Karst (near Trieste, close to the border with Slovenia), in a rare walk in the Covid-19 lockdown period. The sense of attraction toward the bottom of the sinkhole is given by the grass, probably below the heavy snow until a few days before...
Giuliana Rossi (distributed via imaggeo.egu.eu)