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  1. Há 3 dias · The delta function was introduced by physicist Paul Dirac, and has since been applied routinely in physics and engineering to model point masses and instantaneous impulses.

  2. Há 3 dias · Through the works of Born, Heisenberg, and Pascual Jordan in 1925–1926, a quantum theory of the free electromagnetic field (one with no interactions with matter) was developed via canonical quantization by treating the electromagnetic field as a set of quantum harmonic oscillators.

  3. Há 5 dias · A calculadora de taxa metabólica basal (equação de Harris-Benedict) usa uma das três fórmulas da TMB mais populares. Conhecer sua TMB pode ajudar você a tomar decisões importantes sobre sua dieta e estilo de vida.

  4. Há 2 dias · Distâncias, posições relativas, equação da reta, retas paralelas, retas perpendiculares, equação da circunferência, vetores, elipses, hipérboles, parábolas etc.

  5. Há 1 dia · The Standard Model of particle physics is the theory describing three of the four known fundamental forces ( electromagnetic, weak and strong interactions – excluding gravity) in the universe and classifying all known elementary particles.

  6. Add your thoughts and get the conversation going. 2.5M subscribers in the sciencememes community.

  7. Há 4 dias · Legendre's equation comes up in many physical situations involving spherical symmetry. Legendre Polynomials. Legendre's polynomial can be defined explicitly: Pn(x) = 1 2n ⌊ n / 2 ⌋ ∑ k = 0 ( − 1)k(n k)(2n − 2k n)xn − 2k, where ⌊ · ⌋ is the floor function, and (n k) = n! k!(n − k)! = nk _ k! is the binomial coefficient.