Ten World's Largest Waterfalls

Waterfalls are commonly formed when a river is young. When the river courses over resistant bedrock, erosion happens slowly, while downstream the erosion occurs more rapidly. As the watercourse increases its velocity at the edge of the waterfall, it plucks material from the riverbed. Whirlpools created in the turbulence as well as sand and stones carried by the watercourse increase the erosion capacity. This causes the waterfall to carve deeper into the bed and to recede upstream. Often over time, the waterfall will recede back to form a canyon or gorge downstream as it recedes upstream, and it will carve deeper into the ridge above it.

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Posted in: Nature,Waterfalls

Bottomless Cave In Vietnam

This is the world’s largest mammoth cave and the bottom is out of sight. There are jungles inside it. The roof of the cave fell in and let sunlight in and all kinds of vegetation soon followed. It is one of twenty caves that have been found in Vietnam. A local farmer discovered the cave and led the joint British and Vietnamese exploration team in their April expedition. The team mapping the cave got as far as a 46 foot high wall before they were stymied.

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Posted in: Caves,Nature