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...
Around a billion people in the world have some form of disability. That’s about 15% of the world’s population. There are also many temporary invalids as a result of illness, injury or old age. Disable...
NASA has plans to resend people to the moon, but this time on a more permanent mission. They have to solve a lot of problems for this project. The most important problems are around the distribution,...
To date, several space stations have been built for the permanent residence of humans. They are made of solid material and in one piece taken into space to a location where they are placed at a certai...
Today, most mobile communication devices transmit data either through numerous repeaters located on taller buildings and poles. The new mobile 5G network will have to have repeaters every few hundred...
Astronauts also have the physical need to go to the toilet in space. Sometimes when they are sick they have to vomit. In space, all this is a problem because there is no gravity so bodily secretions f...
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...
Snipers are rifles with an optical sight aimed at destroying enemies over long distances, and can also be used for hunting. Snipers are used by specially trained soldiers, snipers trained to observe e...
The first cars on compressed air used in the 19th century, mostly in mines. Compressed air also powered trams and locomotives. Various pneumatic tools are also started today with compressed air. Compr...
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Tihomir Čuljak
