'Unique' Cave Pearls Containing Ancient Artifacts Discovered in Tunnel
The collection of "very rare" cave pearls includes examples that were found to contain archaeological artifacts—a world first ...
Which are the 5 longest caves in the world?
Courageous cave explorers continue to uncover hidden treasures beneath the Earth's surface. From Mammoth Cave in the USA to ...
Mystery surrounds ancient pearls found in a cave for the first time ever
The research team had not been searching for cave pearls – but came across an opening to a sealed segment of the tunnel while ...
Injured Caver Who Was Trapped Underground for Over 3 Days Is Freed: 'She's Exhausted'
An injured caver who was trapped underground for over three days in a cave in Northern Italy was freed on Wednesday, Dec. 18, ...
Phys.org23 天
Study finds first cave pearls containing archaeological artifacts in ancient Jerusalem tunnel
Yechezkel. "Our initial research focused on mapping and surveying for archaeological artifacts within the spring tunnel. Cave pearls, a rare type of speleothem, were not the primary objective of ...
朝日新聞社1 年
Work to start to extract ‘fortress’ rock face from Gunma tunnel
ANNAKA, Gunma Prefecture--Work will start here in May to remove a towering fortress-like rock face that poses a threat to the Kitanomaki Tunnel below, East Nippon Expressway Co. said. The ...