![]() ![]() In an infinite time, the star will have collapsed into an infinitely small point: a singularity – or to give it another name, a black hole. The matter collapses and no force in nature is known to be able to stop that collapse, ever. When a very big star explodes at the end of its lifetime, its innermost part will collapse under its own gravity, since there is no longer enough fuel to sustain the pressure working against the force of gravity (yes, gravity feels like a force after all, doesn't it!). And perhaps it simply does not fit the standard model of particle physics. Einstein described it as a consequence of the deformation of spacetime. The force of gravity rules the universe, but it may not even be a force in the traditional sense. Imagine that the entire drama of the physical world unfolds in the theatre of spacetime, but gravity is the only 'force' that actually modifies the theatre in which it plays. There's just one issue – nobody has ever actually 'seen' a black hole. At least in theory.īut there is once place in the universe where we could actually witness this problem occurring in real life and perhaps even solve it: the edge of a black hole. Only when you get to very small scales and extreme gravity, do the two theories collide, and somehow, one of them gets it wrong. They both live in distinct worlds, where quantum physics describes the very small, and general relativity describes the very largest scales. And for the most part this isn't a problem. The two theories are seemingly incompatible. the theory of general relativity) – clash head on. Gravity is where fundamental physics and astronomy meet, and where the two most fundamental theories describing our world-quantum theory and Einstein's theory of spacetime and gravity (aka. Still, imagine the epitaph – ‘Here lies – – killed by a black hole’.Of all the forces in physics there is one that we still do not understand at all: Gravity. All of your internal organs will become distorted as the black hole warps the very fabric of space in which they reside. Although the black hole is only 1,000 times wider than an atom, it comes with its famous brand of intense gravity.Īccording to Prof Avi Loeb, the esteemed theoretical physicist from Harvard University, it’s enough to shrink your body by a couple of inches. The primordial black hole will only be in your body for 10 microseconds, but will be travelling at 160km/s (0.05 per cent of the speed of light). That said, you’re in for a torrid time should you be fortune’s fool. For it to pass through the narrow one-metre corridor that coincides with where you are is off-the-scale unlikely. For one to pass through the Earth during your lifetime is almost impossible. According to Prof Sohrab Rahvar, an astrophysicist and cosmologist from Sharif University of Technology in Iran, Earth has only been hit by a maximum of four primordial black holes in its entire 4.54-billion-year existence. Well, first off, you’d probably be the unluckiest person in human history. What would happen if you were hit by a primordial black hole?
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