Pretty cool!! Still not convinced it bends light, but that's another story.





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How do we know these aren’t just burnt out suns that, from millions of light years away, appear to be a big black hole?

(04-10-2019 12:19 PM)BIGDTiger Wrote:  How do we know these aren’t just burnt out suns that, from millions of light years away, appear to be a big black hole?

We don't. Just like we don't actually know that light is "bending" around something due to an immense gravitational pull.

I know there are plenty who disagree with me, but one of the main reasons I have always thought Stephen Hawking was more con man than genius is all of his theories are things that cannot be proven. Maybe in a hundred years or so we will have more knowledge and we will find out some truths.

(04-10-2019 04:55 PM)memtigbb Wrote:  I know there are plenty who disagree with me, but one of the main reasons I have always thought Stephen Hawking was more con man than genius is all of his theories are things that cannot be proven. Maybe in a hundred years or so we will have more knowledge and we will find out some truths.

#This

You are right. It is mostly ALL theory. Now plants turn carbon dioxide into oxygen is science, it can be proven. But to say a star is so many light years away and it would take so long to get there and black holes affecting light is all just theories.

(04-10-2019 05:32 PM)Guitarman Wrote:  

(04-10-2019 04:55 PM)memtigbb Wrote:  I know there are plenty who disagree with me, but one of the main reasons I have always thought Stephen Hawking was more con man than genius is all of his theories are things that cannot be proven. Maybe in a hundred years or so we will have more knowledge and we will find out some truths.

#This

You are right. It is mostly ALL theory. Now plants turn carbon dioxide into oxygen is science, it can be proven. But to say a star is so many light years away and it would take so long to get there and black holes affecting light is all just theories.

Bending of light was Einstein and has been proven. Astronomers have been using gravitational lensing for decades.

(04-10-2019 08:28 PM)plaidtiger Wrote:  

(04-10-2019 05:32 PM)Guitarman Wrote:  

(04-10-2019 04:55 PM)memtigbb Wrote:  I know there are plenty who disagree with me, but one of the main reasons I have always thought Stephen Hawking was more con man than genius is all of his theories are things that cannot be proven. Maybe in a hundred years or so we will have more knowledge and we will find out some truths.

#This

You are right. It is mostly ALL theory. Now plants turn carbon dioxide into oxygen is science, it can be proven. But to say a star is so many light years away and it would take so long to get there and black holes affecting light is all just theories.

Bending of light was Einstein and has been proven. Astronomers have been using gravitational lensing for decades.

He didn't prove that gravity bends light. He proved (via an eclipse) that mass bends space. When we hear the experts talk about black holes and the event horizon, they always say "...the gravitational pull is so strong it bends light" which is inaccurate according to Einstein.