A DIFFICULT problem has been attacked by Mr. E. A. Martin in this book. He defines a dew-pond as “one situated on the higher grounds, generally on the chalk downs of the south of England ...

This is simply a picture of a jet fighter travelling close to the speed of sound. The combination of the shape and speed of the airplane produces zones in which the pressure and temperature are ...

PITTSBURGH (KDKA) — Oftentimes in weathercasts, you'll hear KDKA-TV's First Alert meteorologists mention the relative humidity and dew point, but what are these two terms and what do they mean?