Rare thunderstorm near the north pole: A sign of a warming arctic?
Peer-Reviewed Publication
Updates every hour. Last Updated: 8-Sep-2025 21:11 ET (9-Sep-2025 01:11 GMT/UTC)
Water molecules flip their orientation before splitting into hydrogen and oxygen. These acrobatics require significant energy, leading to the reaction’s inefficiency. Researchers quantified the precise energy costs of flipping. Efficiency is significantly affected by the water’s pH levels.
Researchers from Drexel University, the University of Pennsylvania, City University of New York and Monell Chemical Senses Center recently reported that American pallets are likely to accept pearl millet — a hardy, gluten-free grain that has been cultivated for centuries in rugged, drought conditions in Africa and India — as an acceptable substitute in recipes that use wheat flour.
In AIP Advances, researchers share a model that identifies the optimal location for bowling ball placement. Employing a system of six differential equations derived from Euler’s equations for a rotating rigid body, their model creates a plot that shows the best conditions for a strike. The model accounts for a variety factors, including the thin layer of oil applied to bowling lanes, the motion of the subtly asymmetric bowling ball, and a “miss-room” to allow for human inaccuracies.