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Re: A black hole cannot pull light backward
Posted:
Nov 15, 2011 5:50 PM
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porky_pig_jr@my-deja.com wrote:
> On Nov 14, 4:57 pm, Tom Roberts <tjrob...@sbcglobal.net> wrote:
>> On 11/13/11 11/13/11 - 3:34 PM, james thomas wrote:
>>
>> > [... uninformed nonsense]
>>
>> Replying to the subject: In GR a black hole DOES "pull light backward".
>>
>> One of the best definitions of the event horizon of a black hole is that
>> it is a closed trapped surface. That is, the horizon is closed (has no
>> boundary), and trapped -- every non-spacelike (timelike or null)
>> trajectory that intersects the surface goes into its interior. That means
>> no object can escape, and even light that is initially emitted outward
>> from the horizon actually goes inward. AFAICT that contradicts your claim
>> "cannot pull light backward".
>>
>> Tom Roberts
>
> Do not forget: the way Mitch studies a black hole is by observing his
> unmentionable bodily orifice.
>
> PPJ.
From the inside?
--
Paul Hovnanian mailto:Paul@Hovnanian.com
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Don't let your mind wander -- it's too little to be let out alone.
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