Pediatric patients with sympathomimetic toxicity present with the same signs and symptoms observed in adults. One study noted that some pediatric patients with sympathomimetic toxicity initially presented with inconsolable crying, vomiting, and abdominal pain.
For the next 24 years, they drilled on and off into the Earthâs crust. The result was the Kola Superdeep Borehole and a drill-depth of more than 7.5 miles (12 kilometers). To put that in perspective, Kola descends further than the deepest point of the ocean, which lies at nearly 6.8 miles (11 kilometers). The borehole is located on the Kola Peninsula of Russia.
Kimberley Diamond Mine, South Africa. The Kimberley Diamond Mine (also known as the Big Hole) holds the (disputed) title of being the largest hand-dug hole in the world. From 1866 to 1914 50,000 miners dug the hole with picks and shovels, yielding 2,722 kg of diamonds. Attempts are being made to have it registered as a world heritage site.