Tihomir Čuljak
On earth, many materials are used in construction. Some materials like wood are simply taken from the environment, while some materials are produced in large cement, brick, or iron factories. There ar...
In the exploitation of metal and mineral mines, the raw material is usually in the form of sand. These sands contain valuable minerals that are important minerals in the production of many products ar...
For renewables, and especially for wind, the biggest problem is that energy is produced at one point and consumed at another time when consumers need it most. Therefore, there must be spare capacity i...
Many places around the world are planning to build floating tunnels. These are tunnels placed in water at a certain depth below the surface, or at the bottom of the sea. Typically, such tunnels are in...
Skis are tools that people put on their feet to move through the snow more easily and faster. The sleds have the same function, but one can sit on them while someone else is pulling or pushing them. O...
Boats are intended for navigation, but sometimes they must go out to dry. Smaller vessels are brought out to dry when they are repaired, while larger vessels are brought to the docks for water extract...
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...
Shepherds are people who have to go where sheep, goats, cattle and other animals they keep go. In this movement, they must spend days outside populated areas, moving through bushes, forests and karst....
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The world is changing at a rapid pace. Knowledge though important is not the only factor that helps in career success. To set oneself apart it is vital to gain expertise as well. Students have a great...
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...
Mobile toilets that are quick and easy to place in places where there is no sewerage are increasingly used. Most often they are placed at excursions, big concerts, parking lots and similar places. The...
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Tihomir Čuljak
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