{"type":"rich","version":"1.0","title":"Cosmic acceleration: the second Friedmann equation","html":"<span class=\"wb-embed wb-embed-math\" data-latex=\"\\frac{\\ddot a}{a} = -\\frac{4\\pi G}{3}\\left(\\rho + \\frac{3p}{c^2}\\right) + \\frac{\\Lambda c^2}{3}\">\\frac{\\ddot a}{a} = -\\frac{4\\pi G}{3}\\left(\\rho + \\frac{3p}{c^2}\\right) + \\frac{\\Lambda c^2}{3}</span>","width":640,"height":320}