An overdose of numbing medications can cause fatal side effects if too much of the medicine is absorbed through your skin or gums and into your blood. This is more likely to occur when using a numbing medicine without the advice of a medical doctor (such as during a cosmetic procedure like laser hair removal).
Largest Beaver Dam Seen From Space. The dam in northern Canada spans 2,800 feet and has likely been under beavers' construction since the mid-1970s. A Canadian ecologist has discovered the world's largest beaver dam in a remote area of northern Alberta, an animal-made structure so large it is visible from space. Researcher Jean Thie said Wednesday he used satellite imagery and Google Earth software to locate the dam, which is about 850 meters (2,800 feet) long on the southern edge of Wood Buffalo National Park.
Guri Dam in Venezuela has the fifth biggest reservoir in the world. Aswan high dam, the third biggest in the world, impounds the River Nile and creates Lake Nasser. W.A.C Bennett Dam, constructed on the Peace River, creates the Williston Lake. Krasnoyarsk Dam in Russia is the eighth biggest dam by reservoir capacity.uri Dam, Venezuela. Guri, the world's fifth biggest dam, has a storage capacity of 135 billion cubic metres and creates the Guri Lake covering 4,000km 2. The concrete gravity and embankment dam measures 1,300m in length and 16m in height, and provides for 70% of the country's electricity needs.