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¿Stephen Hawking se equivocó en postulados sobre origen del Universo? eluniversal.com.mx - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from eluniversal.com.mx Daily Mail and Mail on Sunday newspapers.
Ciencia y sociedad más allá de la pandemia, ejes del Festival Puerto de Ideas quepasanoticias.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from quepasanoticias.com Daily Mail and Mail on Sunday newspapers.
AP Feed I have always been fascinated by gravity, mainly because I never understood it. Richard Feynman, who gave us the heuristic diagrams of quantum interactions, famously observed that “Nobody understands quantum mechanics”; the same is true of gravity. Like everyone, I know it as a tugging force, dragging you back as you climb a hill, pulling you forward as you descend a force needing to be fought, to struggle against going up or coming down. Seeing images of astronauts floating in their space capsules was a reconciling factor; at least we were grounded, a relief not to find oneself in a condition of permanent levitation. Yet it remains a mystery defying resolution and comprehension. ....
By John (not verified) on 27 Sep 2017 #permalink So inflation is a field that appears by itself when energy density is above a certain threshold in a region, and later it causes that region to expand exponentially fast, and later it disappears by itself when energy density is below a certain threshold? Why we could still have Black Holes then? We think energy density can become arbitrarily high in the center of BH, but somehow inflation never gets triggered? By Frank (not verified) on 28 Sep 2017 #permalink @ Frank Why we could still have Black Holes then? We think energy density can become arbitrarily high in the center of BH, but somehow inflation never gets triggered? ....