A famous saying of lighthouse is as follows:

1. Famous saying

1. Dream is a lighthouse on the way forward. No matter how big the storm is, follow its light and you won't get lost; The lighthouse shines far and far, but it never shines on its own tower foot; As long as the beacon of faith is flashing, the course of life will not be lost; In the voyage of our life, we must always have a bright lighthouse in our hearts.

2. The lighthouse is often shrouded in dense fog, but it does not extinguish the burning heart; Lighthouses don't run around the island looking for ships that need to be rescued, but just stand there and shine; Don't learn noisy waves, be a silent lighthouse; The sunken ship on the beach is a lighthouse at sea; Like those fishing boats that travel at night, everyone actually needs a lighthouse to guide him home.

3. Perseverance is the grass on the cliff, warning us to have tenacious will; Persistence is the north star in the sky, which lights up the light of our souls; Persistence is the beacon of the sea, shining our way forward; Perseverance is a small compass, guiding us in the direction of struggle.

2. Lighthouse

1. Lighthouse is a high-tower building. Lighting equipment should be installed at the top of the tower, and the position should be prominent. Note that it should have a specific architectural shape, which is easy for ships to distinguish and become one of the highest points in the port. Because the surface of the earth is curved, the tower must have sufficient height to make the lights visible to distant ships, and the general sight distance is 15-25 nautical miles.

2. However, the lighting should not be too high, so as not to be covered by high clouds. According to the size of the lighthouse and the characteristics of the location, the lighthouse can be guarded or unattended, and important lighthouses should be guarded. A lighthouse is a building located on the coast, port or river to guide the direction of ships.

3. Most lighthouses are similar in shape to towers. Through the lens system at the top of the tower, the light shines on the sea surface for illumination. Before electricity appeared, fire was often used as the light source.

III. Structure

1. Tower: The lighthouse consists of lamps and towers. The tower can be constructed of various building materials, mainly to adapt to and resist harsh natural conditions such as wind and waves, so as to maintain its own stability and durability. The height of the tower should meet the requirements of light range; Lamps and lanterns: lamps and lanterns are composed of two basic parts: light emitter and light radiator.

2. The luminous energy of modern lighthouses mainly uses electricity. The luminous center of the light emitter is located at the focus of the condenser lens, and the spherical light radiated by the light source becomes a parallel beam with a certain diffusion angle through the condenser lens. The range of the lighthouse can reach about 3 nautical miles, and the intensity of light can reach hundreds of millions of candles. There are flashing lights, fixed lights and bright and dark lights.