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  2. Wikipedia, the free encyclopedia

    en.wikipedia.org/wiki/Main_Page

    After undergoing important upgrades between 2011 and 2016 (during which LIGO made the first detection of gravitational waves), Virgo made its first detection on 14 August 2017. This was followed by the detection of GW170817, the only gravitational wave also observed with classical methods (optical, gamma-ray, X-ray and radio telescopes) as of 2024.

  3. Spiritist basic works - Wikipedia

    en.wikipedia.org/wiki/Spiritist_basic_works

    The Basic Works consist of five books, starting with The Spirits' Book, the most comprehensive one, composed of a lengthy introduction presenting Spiritism and 1019 questions addressed to the spirits, whose answers were codified (analyzed, summarized, and organized) by Allan Kardec.

  4. Elitzur–Vaidman bomb tester - Wikipedia

    en.wikipedia.org/wiki/Elitzur–Vaidman_bomb_tester

    Detector D is the key to confirming that the bomb is live. The two detectors and the second half-silvered mirror are precisely aligned with one another. Detector C is positioned to detect the particle if the bomb is a dud and the particle traveled both paths in its superposition and then constructively interfered with itself.

  5. Spirit photography - Wikipedia

    en.wikipedia.org/wiki/Spirit_photography

    Paranormal investigator Joe Nickell makes a distinction between spirit photography and ghost photography in his book The Science of Ghosts: Searching for Spirits of the Dead, stating that spirit photography began in studios and eventually included ghosts photographed in séance rooms, whereas ghost photographs were taken in places that were ...

  6. Obsession (Spiritism) - Wikipedia

    en.wikipedia.org/wiki/Obsession_(Spiritism)

    Subjugation: The spirit overcomes the medium's will to the extent of controlling their body as the spirit's own. During the obsession crisis, the victim will not act as themself and will pursue whatever agenda the obsessing spirit has in mind. After the crisis, the victim may not remember anything, or may remember everything with great regret.

  7. NASA spin-off technologies - Wikipedia

    en.wikipedia.org/wiki/NASA_spin-off_technologies

    This ice-free airplane wing uses Thermawing's Aircraft Anti-Icing System, a NASA spin-off. NASA funding under the SBIR program and work with NASA scientists advanced the development of a thermoelectric deicing system called Thermawing , a DC-powered air conditioner for single-engine aircraft called Thermacool, and high-output alternators to run ...

  8. The Phenomenology of Spirit - Wikipedia

    en.wikipedia.org/wiki/The_Phenomenology_of_Spirit

    The Phenomenology of Spirit (German: Phänomenologie des Geistes) is the most widely discussed philosophical work of Georg Wilhelm Friedrich Hegel; its German title can be translated as either The Phenomenology of Spirit or The Phenomenology of Mind. Hegel described the work, published in 1807, as an "exposition of the coming to be of knowledge ...

  9. Jagadish Chandra Bose - Wikipedia

    en.wikipedia.org/wiki/Jagadish_Chandra_Bose

    Jagadish Chandra Bose was born on 30 November 1858 to a Bengali Kayastha family of Brahmos in Mymensingh, Bengal Presidency (now part of Bangladesh). [3] [9] His family were originally from the village of Rarhikhal in Munshiganj, Dacca district. [10]