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.
The new dam had originally been called the Gilbertsville Dam, but the TVA renamed it Kentucky Dam. At one and a half miles long and 206 feet high, Kentucky Dam is the largest dam built by the TVA. Kentucky Lake has 160,000 acres with a canal that connects it to Lake Barkley. It is the largest man-made lake in the eastern United States. Kentucky Lake and Lake Barkley creates one of the largest waterways in the world. The lake has a beach and a full service marina with both covered and uncovered slips. Anglers can find bass, bluegill, catfish, crappie, and rockfish.