Coffee is the second largest traded commodity in the world, next to crude oil. It’s also one of the oldest commodities, with over 2.25 billion cups of coffee consumed worldwide daily.
metamaterial (plural metamaterials)
(engineering, physics) any material that obtains its electromagnetic properties from its structure rather than from its chemical composition; especially a material engineered to have features of a size less than that of the wavelength of a class of electromagnetic radiation
Source: Wiktionary
10 June 2025
(noun) the discipline that studies the principles of transmiting information and the methods by which it is delivered (as print or radio or television etc.); “communications is his major field of study”
Coffee is the second largest traded commodity in the world, next to crude oil. It’s also one of the oldest commodities, with over 2.25 billion cups of coffee consumed worldwide daily.