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      • Radio, which had evolved from advances in telegraph and telephone technology, was a revolutionary step forward in communications because, unlike its predecessors, it did not require wires. Discoveries in science and technology during the 1900s were shared internationally.
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  2. Jan 1, 2023 · In the mid-1900s, a guy named Norman Bourlag helped to pioneer an agricultural revolution in Mexico. This agricultural revolution was dubbed the Green Revolution by the USAID, as it helped promote better methods of agriculture. The Green Revolution helped introduce: new synthetic fertilizers, especially nitrogen-based fertilizers

  3. Dec 31, 2022 · Other computer events in 1900 Nikola Tesla develops frequency hopping, now known as spread spectrum. The remains of the Antikythera mechanism were recovered from the shipwreck of a Greek vessel that sunk sometime between 75 and 50 BC. The wreck was discovered accidentally by divers in 1900 off the coast of Antikythera.

  4. Jan 10, 2023 · history of photography, method of recording the image of an object through the action of light, or related radiation, on a light-sensitive material. The word, derived from the Greek photos (“light”) and graphein (“to draw”), was first used in the 1830s. This article treats the historical and aesthetic aspects of still photography. For a discussion of the technical aspects of the medium ...

    • Naomi Rosenblum
  5. 3 days ago · 1400 - 1200 BC: Concrete in Tiryns (Mycenaean Greece). [167] [168] Waterproof concrete was later developed by the Assyrians in 688 BC, [169] and the Romans developed concretes that could set underwater. [170] The Romans later used concrete extensively for construction from 300 BC to 476 AD. [171] Iron Age [ edit]

  6. Jan 26, 2023 · Between 1890 and 1920, technological advances and economic policy changes began to change society’s view: children should be educated, rather than work. This allowed emphasis to be placed on the exclusive education of children during their childhood in America. A prominent system that stemmed from this new attitude was the “common school” movement.

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