‎Let ${X_{alpha}:alphainLambda}$ be a collection of topological spaces‎, ‎and $mathcal {G}_{alpha}$ be a grill on $X_{alpha}$ for each $alphainLambda$‎. ‎We consider Tychonoffrq{}s type Theorem for $X=prod_{alphainLambda}X_{alpha}$ via the above grills and a natural grill on $X$ ‎related to these grills, and present a simple proof to this theorem‎. ‎This immediately yields the classical theorem...

Grill-specific footprints for common fuel/grill types in the USA have been estimated from public information and data a major grill manufacturer. In 2022, grill-specific vary by ratio of 9:1. A typical gas has highest footprint; wood-pellet is lowest; charcoal briquettes, electricity super-efficient grills come in-between those two. Efficiency varies greatly (natural or propane) grills: twice f...