At present, our lives become more and more dependent and reliable on smart phones. However, the price of a smartphone is often a prohibitive factor. But, now the ability to get completely free phones without having to sign an agreement is emerging. This article will explore this possibility.

Cooling systems are a very common part of many process pipelines and have been on the rise. Industrial air-cooled and water chillers are the higher-end devices and serve a paramount functions in this aspect. This article highlights their key features.