City: Santa Cruz State/Province: CA Country: USA Area of science: Astronomy ID: 890459810.As. the observer really does measure an infinite time for the clock to reach the event horizon, while the clock measures a finite time. Event Horizon – Am Rande des Universums ist ein Science-Fiction- und Horrorfilm aus dem Jahr 1997 von Regisseur Paul W. S. Anderson. PS- A black hole can be used only for time travel into the future! Just outside the event horizon you could hover in a craft capable of just under light speed. Hauptdarsteller sind … Just hang out close to the event horizon for a while and then return. Let's consider the light path from an object accelerating TO light speed. Slowing Time to a Standstill with Relativity. That situation is analogous to one in where you are inside a uniformly (constantly) accelerating spaceship (ignoring tidal forces) also finding the light to take more 'time'. The river of space-time flows into a black-hole at light speed. This effect is known as time dilation and was one of the earliest predictions of relativity. At the event horizon, assuming you being there measuring outwards into space, gravity should bend the 'path taken' as observed by you, making it take more 'time' for your measurement, all locally perceived. By Andrew Zimmerman Jones, Daniel Robbins . Please correct me if I am wrong: time does not actually decrease, but it appears to be slowed down due to red shift or blue shift. The differences in the time experienced by the observer and the falling clock are not illusory. Zimbabwean dollars- your clock seems to stop entirely, from the point of view of someone far from the black hole, even though things seem just fine from your own point of view. Date: Fri Mar 20 23:56:50 1998 Posted by Carl Vuosalo Grade level: nonaligned School: No school entered. At the event horizon you could not. I think people can have different perspectives on appearance vs. reality, Manraj. Subject: Doesn't time appear to stop at the event horizon of a black hole? In physics, time travel is closely linked to Einstein’s theory of relativity, which allows motion in space to actually alter the flow of time.