This membrane consists of all the matter that would have gone into the black hole and exists right outside the event horizon because this is where all the would-be infalling matter aggregates according to a distant observer's perspective.
(This also assumes that the black hole is sufficiently massive that tidal forces aren't an issue at the horizon.) A distant observer (someone sufficiently far away from the black hole), on the other hand, would observe the camera (well, its energy and information) getting absorbed by and dissipated throughout a membrane just outside the event horizon of the black hole. More specifically, the camera would observe-or actually, an observer in the infalling frame with the camera would observe-that it passes the event horizon without any drama. This is called black hole complementarity it's the conjecture that two distinct events will be observed, depending on the observer's reference frame. The direct answer to your question is that yes, a camera can pass through a black hole just like any other piece of matter.Įven this answer though depends on the reference frame of the observer witnessing the camera going into the black hole. The implications of Smolin's concept are amazing. And that mother appeared the same way, each cosmos spawning billions of new ones, with Black Holes serving as eggs-or fetuses. My own story "What Continues." is a thought experiment in which two women scientists drop cameras through a black hole to spy on the "daughter universe" within.Īccording to physicist Lee Smolin, our own cosmos might have erupted that way, from a black hole created within a previous, mother universe. Hence, in Christopher Nolan's film Interstellar, one astronaut finds a realm just within the event horizon-a place where time is fluid and navigable, where distant human descendants offer him glimpses, revelations and opportunities. An opportunity to explore, even if only via literature of the imagination. Yet, something within us deems every "horizon" to be a challenge.
You ask the classic question-if anything lies beyond the event horizon of a black hole, might we ever discover what it is? Our contemporary physics suggest the answer is 'no.' That even in theory, information cannot pass outward across that horizon. The inner event horizon, however, is still a one-way trip- you can drop the camera in, but won't get any information out. A spinning black hole has two different event horizons, an inner one and an outer one, and if you are clever enough, you can still send information out even after you pass the outer event horizon. If the black hole is spinning, it's more complicated. but from the point of view of an observer watching from outside the black hole, the radio link receiving the pictures from the camera will be shifting to lower and lower frequencies, and the pictures will be slower and slower to receive, until the very final picture takes literally an infinite time to come down, and comes down at a radio frequency that is stretched to an infinitely long wavelength. From the camera's point of view, nothing exciting happens as it passes the event horizon. The camera will experience tidal forces, which will try to stretch it out, but if the black hole is large enough-thousands of solar masses, say-the camera should easily survive. Up until it crosses the event horizon, you could use a radio link to send images. You can send a camera into a black hole, but, according to the classical theory of general relativity, you will only get information back from it until it passes through the event horizon.
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