Mechanical Engineering Professor Alan McGaughey of Carnegie Mellon University recently coordinated the Phonon Olympics, ...

Sometimes external forces in the economy throw the supply and demand for a product or service out of whack. Trade quotas are a common and powerful example of one such external force. One way ...

Learn how DROP, REDUCE, LAMBDA, and STACK make Excel arrays update automatically, split text, and stack filtered results ...

(11/4/25) The energy price index fell 3.7% in October, driven by a 5.1% decline in crude oil prices, partially offset by a 7.5% rise in U.S. natural gas prices. The non-energy price index changed ...