Tihomir Čuljak
There are several ways to purify salt water or dirty water. Distillation processes are most commonly used, as well as osmosis processes in which water passes through semipermeable membranes. Distillat...
Ships are built in shipyards, most often on dry docks that are slightly sloping towards the water surface. On such docks, there are rails on which the ship is built, and after the completion of constr...
There are various types of seawater desalination devices for drinking water and plant irrigation. Most of these devices use a lot of energy to evaporate water and convert it into water vapor which is...
At the bottom of the sea, various works are often performed by divers. Some such works can be done much more easily when a dome is placed at the bottom of the sea under which air is blown. Then worker...
Transport bags are used to carry a large amount of equipment, clothing or other material. They are used by travelers, hikers, and soldiers. Special military units sometimes carry up to 70 kilograms of...
Seafarers have long since begun to use lifejackets to given to crew in the event of a ship crash. Initially, these were rubber belts, and later, with the development of plastics, they would become muc...
Bumpers, or fenders are the ship's equipment that protects the sides shackles of the boat from strokes in the docks while staying in the harbors. Fenders are usually made of solid rubber and are fille...
Extensive breeding of ducks and geese on fishponds requires little investment. The duck and the geese are kept on the water during the day, while closing at night in the canopies. Canopies can be on t...
Hanging and sleeping nets appeared on sailing boats. In them a man can lie or sleep. Today, they are often used by hikers, hikers and soldiers while they are in the woods. They are particularly useful...
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Tihomir Čuljak
