Christians begin their day, activities and prayers with the Sign of the Cross. It strengthens us in temptations and difficulties. In the name of the Father, and of the Son, and of the Holy Spirit.

Graphene is a two-dimensional material consisting of a single layer of carbon atoms arranged in a honeycomb structure. Its properties include high strength and good conductivity of heat and ...

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...