What do you need VPN for?

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All Internet providers control the activity of their users and know what websites you have seen. The thing is that it is necessary to use VPN services not only to get necessary information without any boundaries, but also it could help during the investigation. It could help to take off suspicions and responsibilities from user’s actions. (more…)

A look on the role of ultrasound: from theories to practice

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The first experiments on the use of ultrasound in electroplating led to some disappointment. But the subsequent theoretical studies confirmed the correctness of the basic principles of ultrasonic methods. Now, it is obvious that ultrasonic irradiation promotes electrolytic deposition, removing bubbles, which tends to accumulate on the coated metal surface by cleaning and possibly even by releasing the formed grains of deposited metal. (more…)