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  2. Primitive Technology - Wikipedia

    en.wikipedia.org/wiki/Primitive_Technology

    Primitive Technology is a YouTube channel run by John Plant. Based in Far North Queensland, Australia, the series demonstrates the process of making tools and buildings using only materials found in the wild. Created in May 2015, the channel has gained over 10.8 million subscribers and over 1.12 billion views as of December 2023.

  3. Hydroponics - Wikipedia

    en.wikipedia.org/wiki/Hydroponics

    A popular variation is the nutrient film technique or NFT, whereby a very shallow stream of water containing all the dissolved nutrients required for plant growth is recirculated in a thin layer past a bare root mat of plants in a watertight channel, with an upper surface exposed to air. As a consequence, an abundant supply of oxygen is ...

  4. Nutrient film technique - Wikipedia

    en.wikipedia.org/wiki/Nutrient_film_technique

    Plants placed into nutrient-rich water channels in an NFT system A home-built NFT hydroponic system. Nutrient film technique (NFT) is a hydroponic technique where in a very shallow stream of water containing all the dissolved nutrients required for plant growth is re-circulated past the bare roots of plants in a watertight gully, also known as channels.

  5. Underground farming - Wikipedia

    en.wikipedia.org/wiki/Underground_farming

    The Lunar greenhouse is an underground farm made by Phil Sadles and Gene Giacomelli of the University of Arizona's Controlled Environment Agriculture Center (CEAC) [4] [5] The urine and exhaled air of the astronauts is reused in the system by the plants. [6] GreenForges is a Canadian startup developing underground farming systems. [7] [8] [9]

  6. List of most-subscribed YouTube channels - Wikipedia

    en.wikipedia.org/wiki/List_of_most-subscribed...

    American YouTube personality MrBeast is the most-subscribed channel on YouTube, with 356 million subscribers as of February 2025.. A subscriber to a channel on the American video-sharing platform YouTube is a user who has chosen to receive the channel's content by clicking on that channel's "Subscribe" button, and each user's subscription feed consists of videos published by channels to which ...

  7. Claude "Bud" Lewis Carlsbad Desalination Plant - Wikipedia

    en.wikipedia.org/wiki/Claude_"Bud"_Lewis_Carlsbad...

    [40] [41] This is equivalent to 43 million gallons per day (mgd), or about 86% of the plant's output. The cost of water from the plant will be $100 to $200 more per acre-foot than recycled water (approximately 0.045 cents per gallon), $1,000 to $1,100 more than reservoir water (approx. 0.32 cents per gallon), but $100 to $200 less than ...

  8. Euryale ferox - Wikipedia

    en.wikipedia.org/wiki/Euryale_ferox

    Euryale ferox, commonly known as prickly waterlily, [3] makhana, or Gorgon plant, is a species of water lily found in southern and eastern Asia, and the only extant member of the genus Euryale. The edible seeds, called fox nuts or makhana , are dried, [ a ] and eaten predominantly in Asia.

  9. Irrigation - Wikipedia

    en.wikipedia.org/wiki/Irrigation

    Irrigation (also referred to as watering of plants) is the practice of applying controlled amounts of water to land to help grow crops, landscape plants, and lawns. Irrigation has been a key aspect of agriculture for over 5,000 years and has been developed by many cultures around the world.