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19 hours ago · Richard Phillips Feynman (/ ˈ f aɪ n m ə n /; May 11, 1918 – February 15, 1988) was an American theoretical physicist, known for his work in the path integral formulation of quantum mechanics, the theory of quantum electrodynamics, the physics of the superfluidity of supercooled liquid helium, as well as his work in particle physics for which he proposed the parton model.
19 hours ago · Zero-point energy ( ZPE) is the lowest possible energy that a quantum mechanical system may have. Unlike in classical mechanics, quantum systems constantly fluctuate in their lowest energy state as described by the Heisenberg uncertainty principle. [1] Therefore, even at absolute zero, atoms and molecules retain some vibrational motion.
19 hours ago · The problems of consciousness, Chalmers argues, are of two kinds: the easy problems and the hard problem.. Easy problems. The easy problems are amenable to reductive inquiry. They are a logical consequence of lower-level facts about the world, similar to how a clock's ability to tell time is a logical consequence of its clockwork and structure, or a hurricane a logical consequence of the ...
19 hours ago · See my English edition, Eugen Dühring, The Jewish Question as a racial, moral and cultural question, with a world-historical answer (Ostara Publications, 2019). Isaiah 49:23: ‘And kings shall be thy nursing fathers, and their queens thy nursing mothers: they shall bow down to thee with their face toward the earth, and lick up the dust of thy feet; and thou shalt know that I am the Lord: for ...
19 hours ago · Lorenz cipher machine, used in World War II to encrypt communications of the German High Command Cryptography, or cryptology (from Ancient Greek: κρυπτός, romanized: kryptós "hidden, secret"; and γράφειν graphein, "to write", or -λογία -logia, "study", respectively), is the practice and study of techniques for secure communication in the presence of adversarial behavior ...
19 hours ago · RNA world. A comparison of RNA ( left) with DNA ( right ), showing the helices and nucleobases each employs. The RNA world is a hypothetical stage in the evolutionary history of life on Earth, in which self-replicating RNA molecules proliferated before the evolution of DNA and proteins. [1] The term also refers to the hypothesis that posits the ...
19 hours ago · Moreover, these memory cells induce apoptosis in tumour-derived organoids indicating that they possess cytotoxic ability. We will also shed light on the discovery of a novel T cell subset with an immune-epithelial phenotype. Harnessing the power of TRMs could guide the design of novel vaccination strategies to prevent ovarian cancer.
