What exactly is caviar? In general, the delicacy is salted eggs from female fish. For this purpose, the roe, i.e. all the eggs, are removed from the fish, then degreased, sieved, washed, and salted. The individual eggs are also called grai…

Top floor dwellings, or attics, often have some problems with natural lighting. The same applies to the upper floor of single-family houses. This is especially true if the roof is not straight but gabled. In this type of roof, the height o…