Hawking radiation precludes singularity formation?

Laura Mersini-Houghton at the University of North Carolina and Harald Pfeiffer of the University of Toronto have published a paper suggesting that as a collapsing star emits Hawking radiation, it must also shed mass at a rate that would necessarily prevent it from achieving the density necessary to form a singularity. This doesn’t mean they are claiming black holes don’t exist, they’re Online shopping calls for caution, and only websites that are genuine and offer the right medicines are visited and used for online online levitra amerikabulteni.com purchasing. These are usually also http://amerikabulteni.com/2015/09/17/cumhuriyetci-aday-adaylarinin-2-acikoturumu-kazananlar-kaybedenler/ cheapest brand viagra referred to as yeast infection, Candida infection, Candidasis, Moniliasis or Oidiomycosis. Necessarily, these pills meant to improve buy levitra no prescription sexual drive in men and women. It is also noticed that levitra 60 mg these pharmacies sell drugs only to overseas consumers as by doing this they avoid their country’s jurisdiction. saying that if Hawking radiation is real (and so far it’s entirely theoretical) a black hole singularity cannot be formed by the implosion of a star.

Of course if a mass is high enough to create an information paradox, would we ever be able to tell if that mass is a point singularity or not? I don’t know, but the non-mathematical parts of the paper are surprisingly readable.

A big week in science…

I didn’t believe in black holes until very recently. But my friends and relatives in the space telescope biz kept seeing things I couldn’t explain any other way, so despite my deep misgivings about Stephen Hawking’s attempts to explain how such things must work, and despite Einstein’s suspicions that their predicted existence was really simply a place where physics formulae break down (a “mathematical singularity” not necessarily corresponding to any real object), I eventually gave in.

So, now that I’ve grudgingly admitted black holes really do seem to exist, Hawking publishes a paper saying “The absence of event horizons mean that there are no black holes – in the sense of regimes from which light can’t escape to infinity. There are however apparent horizons which persist for a period of time. This suggests that black holes should be redefined as metastable bound states of the gravitational field.” Arrgh! Now I have to find time to read more physics.

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Finally and most importantly, a team of scientists working in the USA and Japan announced a breakthrough in stem-cell creation that potentially obviates all the kerfuffle about existing medical markets for aborted fetus cells.