Five things that are banned in San Francisco, USA

San Francisco

The USA has 50 different states. Each of these administrative districts has the right to establish laws. In two neighboring states, the same requirements for local residents and guests can be completely different from each other. Usually, state laws seem quite natural. But there are some extraordinary restrictions that most other states do not follow. …

Silicon-based chain polymers

Have we ever thought about what is included in the enamels, varnishes for painting the fronts? What elements do anticorrosion coatings, resins, sealing gaskets contain? Certainly, we never take into consideration their composition. However, without all these products life on Earth would be a nightmare, i.e. different kinds of equipment would suffer a lack of …