Event Horizon

Ascenxion

According to an outside observer, an object slows down as it approaches the event horizon but never reaches it. Why does it slow down?

Thanks.

robphy

It appears to slow down because (due to the arrangement of light cones near the horizon) it takes successively longer for the information from the infalling object to reach the outside observer.

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robphy Blog Entries: 47 Recognitions: Gold Member Homework Help Science Advisor	It appears to slow down because (due to the arrangement of light cones near the horizon) it takes successively longer for the information from the infalling object to reach the outside observer.