• The History, Evolution and Rise of AI

    https://medium.com/@lmpo/a-brief-history-of-ai-with-deep-learning-26f7948bc87b

    ๐Ÿ”น 1943: ๐— ๐—ฐ๐—–๐˜‚๐—น๐—น๐—ผ๐—ฐ๐—ต & ๐—ฃ๐—ถ๐˜๐˜๐˜€ create the first artificial neuron.
    ๐Ÿ”น 1950: ๐—”๐—น๐—ฎ๐—ป ๐—ง๐˜‚๐—ฟ๐—ถ๐—ป๐—ด introduces the Turing Test, forever changing the way we view intelligence.
    ๐Ÿ”น 1956: ๐—๐—ผ๐—ต๐—ป ๐— ๐—ฐ๐—–๐—ฎ๐—ฟ๐˜๐—ต๐˜† coins the term โ€œArtificial Intelligence,โ€ marking the official birth of the field.
    ๐Ÿ”น 1957: ๐—™๐—ฟ๐—ฎ๐—ป๐—ธ ๐—ฅ๐—ผ๐˜€๐—ฒ๐—ป๐—ฏ๐—น๐—ฎ๐˜๐˜ invents the Perceptron, one of the first neural networks.
    ๐Ÿ”น 1959: ๐—•๐—ฒ๐—ฟ๐—ป๐—ฎ๐—ฟ๐—ฑ ๐—ช๐—ถ๐—ฑ๐—ฟ๐—ผ๐˜„ and ๐—ง๐—ฒ๐—ฑ ๐—›๐—ผ๐—ณ๐—ณ create ADALINE, a model that would shape neural networks.
    ๐Ÿ”น 1969: ๐— ๐—ถ๐—ป๐˜€๐—ธ๐˜† & ๐—ฃ๐—ฎ๐—ฝ๐—ฒ๐—ฟ๐˜ solve the XOR problem, but also mark the beginning of the “first AI winter.”
    ๐Ÿ”น 1980: ๐—ž๐˜‚๐—ป๐—ถ๐—ต๐—ถ๐—ธ๐—ผ ๐—™๐˜‚๐—ธ๐˜‚๐˜€๐—ต๐—ถ๐—บ๐—ฎ introduces Neocognitron, laying the groundwork for deep learning.
    ๐Ÿ”น 1986: ๐—š๐—ฒ๐—ผ๐—ณ๐—ณ๐—ฟ๐—ฒ๐˜† ๐—›๐—ถ๐—ป๐˜๐—ผ๐—ป and ๐——๐—ฎ๐˜ƒ๐—ถ๐—ฑ ๐—ฅ๐˜‚๐—บ๐—ฒ๐—น๐—ต๐—ฎ๐—ฟ๐˜ introduce backpropagation, making neural networks viable again.
    ๐Ÿ”น 1989: ๐—๐˜‚๐—ฑ๐—ฒ๐—ฎ ๐—ฃ๐—ฒ๐—ฎ๐—ฟ๐—น advances UAT (Understanding and Reasoning), building a foundation for AI’s logical abilities.
    ๐Ÿ”น 1995: ๐—ฉ๐—น๐—ฎ๐—ฑ๐—ถ๐—บ๐—ถ๐—ฟ ๐—ฉ๐—ฎ๐—ฝ๐—ป๐—ถ๐—ธ and ๐—–๐—ผ๐—ฟ๐—ถ๐—ป๐—ป๐—ฎ ๐—–๐—ผ๐—ฟ๐˜๐—ฒ๐˜€ develop Support Vector Machines (SVMs), a breakthrough in machine learning.
    ๐Ÿ”น 1998: ๐—ฌ๐—ฎ๐—ป๐—ป ๐—Ÿ๐—ฒ๐—–๐˜‚๐—ป popularizes Convolutional Neural Networks (CNNs), revolutionizing image recognition.
    ๐Ÿ”น 2006: ๐—š๐—ฒ๐—ผ๐—ณ๐—ณ๐—ฟ๐—ฒ๐˜† ๐—›๐—ถ๐—ป๐˜๐—ผ๐—ป and ๐—ฅ๐˜‚๐˜€๐—น๐—ฎ๐—ป ๐—ฆ๐—ฎ๐—น๐—ฎ๐—ธ๐—ต๐˜‚๐˜๐—ฑ๐—ถ๐—ป๐—ผ๐˜ƒ introduce deep belief networks, reigniting interest in deep learning.
    ๐Ÿ”น 2012: ๐—”๐—น๐—ฒ๐˜… ๐—ž๐—ฟ๐—ถ๐˜‡๐—ต๐—ฒ๐˜ƒ๐˜€๐—ธ๐˜† and ๐—š๐—ฒ๐—ผ๐—ณ๐—ณ๐—ฟ๐—ฒ๐˜† ๐—›๐—ถ๐—ป๐˜๐—ผ๐—ป launch AlexNet, sparking the modern AI revolution in deep learning.
    ๐Ÿ”น 2014: ๐—œ๐—ฎ๐—ป ๐—š๐—ผ๐—ผ๐—ฑ๐—ณ๐—ฒ๐—น๐—น๐—ผ๐˜„ introduces Generative Adversarial Networks (GANs), opening new doors for AI creativity.
    ๐Ÿ”น 2017: ๐—”๐˜€๐—ต๐—ถ๐˜€๐—ต ๐—ฉ๐—ฎ๐˜€๐˜„๐—ฎ๐—ป๐—ถ and team introduce Transformers, redefining natural language processing (NLP).
    ๐Ÿ”น 2020: OpenAI unveils GPT-3, setting a new standard for language models and AIโ€™s capabilities.
    ๐Ÿ”น 2022: OpenAI releases ChatGPT, democratizing conversational AI and bringing it to the masses.


  • Sun cone angle (angular diameter) as perceived by earth viewers

    , ,

    Also see:

    https://www.pixelsham.com/2020/08/01/solid-angle-measures/

     

    The cone angle of the sun refers to the angular diameter of the sun as observed from Earth, which is related to the apparent size of the sun in the sky.

     

    The angular diameter of the sun, or the cone angle of the sunlight as perceived from Earth, is approximately 0.53 degrees on average. This value can vary slightly due to the elliptical nature of Earth’s orbit around the sun, but it generally stays within a narrow range.

     

    Here’s a more precise breakdown:

      • Average Angular Diameter: About 0.53 degrees (31 arcminutes)
      • Minimum Angular Diameter: Approximately 0.52 degrees (when Earth is at aphelion, the farthest point from the sun)
      • Maximum Angular Diameter: Approximately 0.54 degrees (when Earth is at perihelion, the closest point to the sun)

     

    This angular diameter remains relatively constant throughout the day because the sun’s distance from Earth does not change significantly over a single day.

    To summarize, the cone angle of the sun’s light, or its angular diameter, is typically around 0.53 degrees, regardless of the time of day.

     

    https://en.wikipedia.org/wiki/Angular_diameter