• Holla@feddit.org
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    1 个月前

    Technically all objects have an event horizon, the special feature of black holes is just that they are actually smaller than their event horizon

    • Successful_Try543@feddit.org
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      1 个月前

      Every object has a Schwarzschild radius, but only if objects are an object is smaller than their its own Schwarzschild radius (black holes) it defines an event horizon, i.e. by all means of physics, we cannot “see” what is going on inside.