A new 3D material can guide heat around complex objects while shielding them from extreme temperatures and infrared detection. On an infrared camera, a warm object normally stands out clearly against cooler surroundings. Researchers have now built a three-dimensional cloak that bends heat around an object, erasing its thermal outline while protecting the space inside [...]

The U.S. national debt stands at $40 trillion, with Federal Reserve liabilities at $6.8 trillion, stemming mainly from credit creation since the 2008 financial crisis. Historical analysis shows substantial increases in debt during major wars, suggesting that contemporary conflicts may lead to unprecedented levels of war and debt, impacting the economy and society.

New York wants the machine itself to say no. A first-of-its-kind state law could require 3D printers sold