### Why were the groynes built to protect the Cape Hatteras lighthouse?

By 1935, erosion was threatening the Cape Hatteras lighthouse so much that the water was actually reaching its base. The groynes, dikes and breakwaters were an attempt to hold back the erosion process. The groynes proved ineffective so the tower was abandoned and a functional light placed on a steel tower further inland from the shore. After a few years, wooden revetments, a more effective method for erosion control, helped reclaim some of the shoreline.

### What is a summary of Cape Hatteras Lighthouse?

The Cape Hatteras lighthouse is a famous lighthouse on Hatteras Island, North Carolina, USA. It is the tallest lighthouse in use in the US. Completed in 1803, the original structure was eventually demolished following the construction of a new and improved lighthouse between 1868 and 1870. The new lighthouse became the tallest lighthouse tower in the US, with the light projecting from 191 feet, or 58 m, above the water. The tower stands 63 metres…

### How was the Lighthouse of Alexandria built?

Alexandria's lighthouse was built using solid blocks of granite and limestone. The Lighthouse took 12 years to construct, and was built between 290-270 BC/BCE. After 1500 yrs. the lighthouse was knocked down after several earthquakes, but some parts of the lighthouse still remain on the shore of the harbor and in the water.

### Is cape hatteras the southern tip of Africa?

No. Cape Hatteras is a cape on the coast of North Carolina. It is the point that protrudes the farthest to the southeast along the northeast-to-southwest line of the Atlantic coast of North America. Two major Atlantic currents collide just off Cape Hatteras, the southerly-flowing cold water Labrador Current and the northerly-flowing warm water Florida Current (Gulf Stream), creating turbulent waters and a large expanse of shallow sandbars extending up to 14 miles offshore. These…

### Why was North Carolina's Cape Hatteras lighthouse moved?

By 1935, erosion had so threatened the Cape Hatteras lighthouse tower that the water was actually reaching its base. After attempts to hold back the erosion process through dikes and breakwaters proved futile, the tower was abandoned and a functional light placed on a steel tower further inland from the shore. Starting in 1936 hundreds of miles of sand fences were erected and beach grasses planted by the Civilian Conservation Corps (CCCs) program created by…

### How do you crank the lighthouse light Big Nate Poptropica?

You find the old photo at the lighthouse, trade it for the scuba diver outfit, and then go back to the lighthouse. Put on the scuba gear, go into the water and and click on "dive". Find the lost lobster cage and give it to the old sailor (Cap'n Salty), who will give you the lobster and the jet ski key. Use the lobster as pliers to turn the lighthouse light.

### A lighthouse that is 125 feet tall casts a 140- foot shadow on the surface of the water what is the distance from the top of the lighthouse to the top of the shadow?

Assuming that the lighthouse is perpendicular to the ground (it does not lean at all), the lighthouse and the ground will form a right angle (90 degrees). For right triangles, when you know the length of two sides of the triangle, you can use the pythagorean theorem to calculate the third side. Pythagorean Theorem = a2 + b2 = c2 Where a and b represent the sides of the triangle adjacent to the right angle…