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).
April 20 was a triumphant evening for British Petroleum and the crew of Transocean's Deepwater Horizon. Floating 52 miles off the coast of Louisiana in 5000 feet of water, the oil rig was close to completing a well 13,000 feet beneath the ocean floorâan operation so complex it's often compared to flying to the moon.