At least 12 countries have issued at least 80 recalls or warnings about toys and craft kits made with sand that regulators ...

MORE than 100 children’s toys have been recalled over the risk of asbestos contamination – including several big brands.

Polar Night Energy’s sand battery in Pornainen, Finland, endured the country’s harshest winter in years, maintaining low heating costs and emissions despite extreme cold and volatile electricity ...

Abstract: This paper shows the modeling and simulation of spiral tube solar water heater by using concrete absorber. In this paper, the performance of a domestic hot water heating system with solar ...