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 ...

Does string theory—the controversial “theory of everything” from physics—tell us anything about consciousness and the human ...

Steve Nix is a member of the Society of American Foresters and a former forest resources analyst for the state of Alabama. Leaves are the food factories of the tree. Powered by sunlight, the green ...

Every year, a 20-metre Christmas tree from Norway is erected in Trafalgar Square. Image: iStock/stockcam "Trafalgar Square is changed as never before. A 48-ft Christmas tree has sprung up on the west ...

Bryan Nelson is a science writer and award-winning documentary filmmaker with over a decade of experience covering technology, astronomy, medicine, animals, and more. Until 2013, Methuselah, an ...