Tihomir Čuljak
Landing ships have the ability to run aground without damage on sea or river shores, but they cannot go ashore. This problem can be solved by adding the ability to move on the ground to the ship. The...
A snow blower is a machine that has a bucket at the front with rotating blades that throw snow towards the middle of the bucket. This crushed mass of snow is picked up by a spiral screw that lifts the...
There are several ways to generate energy from waves. Most of these devices float on the surface of the water at sea, lakes, or rivers, and energy is generated by moving up and down. Inside most of th...
Hipersonic rockets travel from 6 to ten times faster than sound. And anti-missile missiles consisting of so-called "missile shields" can shoot down enemy missiles traveling up to three times the speed...
Розмінування зазвичай відбувається тільки в мирний час. У бою їх прибирають тільки в тому випадку, якщо потрібно зробити прорив через мінне поле. Для швидкого розмінування полів у бою використовується...
Metal shipping containers are used to transport most consumer goods that are shipped by ship or on rail. Their use brought a very large reduction in transport costs and increased the speed of transpor...
Tanks are weapons of war that are used for defense and attack. These are heavily armored vehicles that carry cannons, machine guns and other weapons with which they can open fire on enemy tanks, bunke...
When the vehicle encounters deep snow, the wheels sink into the snow, and the car cannot go any further. In order to be able to continue driving, chains have to be put on the wheels, but if the snow i...
With wind turbines installed in the deep sea, the problem is strong winds and big waves. Large waves can tilt the floating base, and the entire wind turbine tilts with it, which is bad for their safet...
The price of electricity produced using wind energy depends on the cost of building the turbine, on the lifetime of the turbine, on servicing costs, and on the amount of energy produced. The biggest c...
Solar cells produce energy in a quantity that mostly depends on the power of solar radiation, the length of the day, and the surface of the solar cells. The problem is that in cloudy weather the amoun...
Minefields are cleared in various ways. After the war, they are cleaned manually, or with special vehicles for cleaning mines. During battles, they can be cleaned with explosions. For this, special ty...
When working in the garden, orchard and vineyard, one often has to bend down. Also, in the thicket, when cutting bushes, the woodcutter must bend down to the ground. Bending over is difficult for many...
Drones are a new, very cheap reconnaissance and offensive weapon that is difficult to defend against. Most often, they are so small that radars cannot notice them, and even people from the ground cann...
All over the world there are melioration canals that drain excess water from agricultural areas during periods of increased rainfall, or that serve to irrigate agricultural areas during the dry part o...
Modern protective vests made of kelver are most often used by police officers, solders, security guards and important persons. These vests protect very well against pistol ammunition. Military protect...
Although today most of the traffic takes place on asphalt roads, or macadam roads, many people have to drive on ordinary dirt roads during their work. This is especially true for those who work in agr...
Solar cells are used to convert the energy of sunlight into electrical energy. This energy can be consumed immediately, it can be delivered to the electricity grid if it exists at the location, or it...
Pontoon bridges usually consist of floating parts over which small bridges are placed. They usually serve as temporary bridges, and are most often used in war. Such floating bridges must be portable a...
Many people made a floating raft of plastic bottles. Empty plastic bottles are placed in nylon sacks, or nets. Wooden pallets are placed on this floating structure. This raft has a large load capacity...
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Tihomir Čuljak
