Ingrown toenail. An ingrown toenail occurs when the edge of the nail grows down and into the skin of the toe. Causes. An ingrown toenail can result from a number of things. Poorly fitting shoes and toenails that are not properly trimmed are the most common causes. The skin along the edge of a toenail may become red and infected.
Best Answer: It depends on your height above the surface of the water. where h is the height above ground or sea level (in meters) of the eye of the observer. For an observer standing at sea level with h = 1.70 metres (5 ft 7 in) (average eye-level height), the horizon is at a distance of 4.7 kilometres (2.9 mi).
For observers standing on a hill or tower 100 feet (30 m) in height, the horizon is at a distance of 12.25 miles (19.71 km). If the US Navy ever said the horizon was 14 miles away, it must have been from the masthead of a large ship - about 130 feet (39.82 meters) above the water. Of the 244 feet between keel and masthead of a Nimitz-class carrier, about 38 is below the waterline, and about 150 feet is the island superstructure.