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The term "vertical farming" was coined by Gilbert Ellis Bailey in 1915 in his book Vertical Farming.His use of the term differs from the current meaning—he wrote about farming with a special interest in soil origin, its nutrient content and the view of plant life as "vertical" life forms, specifically relating to their underground root structures. [16]
A tenant farmer on his front porch, south of Muskogee, Oklahoma (1939). A tenant farmer is a farmer or farmworker who resides and works on land owned by a landlord, while tenant farming is an agricultural production system in which landowners contribute their land and often a measure of operating capital and management, while tenant farmers contribute their labor along with at times varying ...
The US has large resources of minerals, energy resources, metals, and timber, a large and modernized farming industry and a large industrial base. The United States dollar is the dominant world reserve currency. US systems were rooted in capitalist economic theory based on supply and demand, that is, production determined by customers' demands.
In 2012, Valve announced Steam for Schools, a free function-limited version of the Steam client for schools. [144] It was part of Valve's initiative to support gamification of learning. It was released alongside free versions of Portal 2 and a standalone program called "Puzzle Maker" that allowed teachers and students to create and manipulate ...
Meat is obtained through a variety of methods, including organic farming, free-range farming, intensive livestock production, and subsistence agriculture. The livestock sector also includes wool, egg and dairy production, the livestock used for tillage, and fish farming. Animal agriculture is a significant contributor to greenhouse gas emissions.
Various Homestead Acts distributed land nearly for free in return for improvements such as building a house, farming, or planting trees. Between 1862 and 1934, the federal government granted 1.6 million homesteads and distributed 270,000,000 acres (420,000 sq mi) of federal land for private ownership.
On 20 April 2021, [255] Venmo added support to its platform to enable customers to buy, hold and sell cryptocurrencies. [ 256 ] In October 2021, financial services company Mastercard announced it is working with digital asset manager Bakkt on a platform that would allow any bank or merchant on the Mastercard network to offer cryptocurrency ...