Thermos: How a 19th-Century Invention Still Keeps Drinks Hot
How a Simple Invention Revolutionized Daily Life The Thermos flask, often overlooked in favor of flashy gadgets, remains one of the most reliable tools for maintaining beverage temperature. Invented in 1892 by Scottish physicist James Dewar, the vacuum flask was originally designed for scientific purposes. However, its practical applications quickly extended far beyond laboratories. Over…