Curious divers on South Australia's Limestone Coast are hoping to one day be able to dive into one cave and come out another, ...

often a fragment of rock or piece of mud. A study recently published in Archaeometry, reports that 50 cave pearls have been found in an ancient tunnel in the Jerusalem Hills of Israel. What makes ...

Hyderabad: At least eight persons are feared trapped as a section of the SLBC tunnel behind Srisailam dam ... The machinery and rock cutters are so advanced that they can cut huge rocks and ...