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Old 04-12-2019, 10:46 AM
DKM
 
Location: Thousand Oaks, CA
2,591 posts, read 891,359 times
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Quote:
Originally Posted by Mike555 View Post
By apology you mean defense. People such as yourself and the poster to whom I replied may not be impressed by the fact that a black hole has been imaged for the first time, and may indeed be skeptical about it, but then, your uniformed opinions don't alter what an achievement this really is. You do however insult and belittle the efforts of all the people who were and are involved in the EHT project.

And neither you or the other poster really merit any further attention.
An apology is a defense. A reasoned argument in justification of something is an apology. By shutting down skeptics, you're blindly following dogma that makes you feel better.
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Old 04-12-2019, 05:28 PM
 
5,086 posts, read 4,602,252 times
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Wasn't this supposed to be impossible since not even light is supposed to elude the pull of the black hole?
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Old 04-12-2019, 08:01 PM
 
21,212 posts, read 16,334,643 times
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Quote:
Originally Posted by kovert View Post
Wasn't this supposed to be impossible since not even light is supposed to elude the pull of the black hole?
What's impossible is to see the singularity inside the event horizon. Nothing inside the event horizon, not even light, can escape from inside the event horizon. What was imaged was the shadow of the event horizon that was cast on the accretion disk outside of the event horizon. And until the EHT collaboration, we didn't have the means to do that. It took a tremendous amount of effort on the part of the people involved to make this possible.
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Old Yesterday, 11:07 AM
 
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If light cannot escape a black hole...what happens to it, inside then?


A light is dependent on its source, so if that is not the case in a black hole, thats very interesting.
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Old Yesterday, 01:24 PM
 
21,212 posts, read 16,334,643 times
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Quote:
Originally Posted by rstevens62 View Post
If light cannot escape a black hole...what happens to it, inside then?


A light is dependent on its source, so if that is not the case in a black hole, thats very interesting.
Since we can never obtain any information from inside the event horizon of a black hole, we can't say for certain. But we can speculate. Once inside the event horizon, matter and light (light is massless) gets absorbed into the singularity which is a point of infinite density. Light is composed of photons. A photon is a unit of electromagnetic energy and is both a fundamental particle and a wave. We know that when a photon is absorbed by an electron, the photon is destroyed. The energy of the photon is imparted to the electron which jumps to a new energy level. The photon itself is destroyed. Perhaps, in a similar manner, when a photon is absorbed by the singularity it imparts its energy to the singularity and the photon itself is destroyed.
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Old Yesterday, 01:57 PM
 
Location: 912 feet above sea level
2,242 posts, read 811,992 times
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Quote:
Originally Posted by Dbones View Post
This is what makes people skeptical about scientists these days. That's not an actual image although they are leading you to believe it is. The telescope arrays used don't take pictures they are radio telescopes. That is a computer generated image with the code to generate it written by humans so it's actually a human interpretation of the radio wave data. I find it quite ironic that the generated image looks pretty much exactly like the theoretical drawings and what you see on the science channel. If you go back and look at all other theoretical drawings and then the real actual photo, take Pluto for example, the drawings were close but wrong. That leads me to believe that this is wrong also. Close, absolutely but this is NOT a real photograph. Everywhere on the internet today you are seeing articles saying this is an actual photograph. It's not. The article in the OP says the same thing. No mention that it is radio wave data that was transformed into an image with a computer algorithm which ultimately is a human interpretation and not an actual real image. It's really cool but it's not all that groundbreaking. The data has been available that tells the story of black holes for a while now, the only new thing is the image generated, which again is most likely not 100% accurate and just a human interpretation of the data that was made to look like the theoretical images. It would be really groundbreaking if it actually WAS a real photograph.
Do you think MRIs and ultrasounds are bogus, too?

Or is your confusion on imaging limited to this specific case?
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Old Yesterday, 07:28 PM
 
9,192 posts, read 3,582,094 times
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So very fascinating. So many shapes in the world being replicated over and over.

An atom looks like a universe.

This black hole looks exactly like a cervix, at the beginning of labor.
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Old Yesterday, 10:58 PM
 
9,266 posts, read 2,323,036 times
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Quote:
Originally Posted by ClaraC View Post
So very fascinating. So many shapes in the world being replicated over and over.

An atom looks like a universe.

This black hole looks exactly like a cervix, at the beginning of labor.
Yes! I have a sneaky feeling, when we die and hopefully get to find out all the BIG answers...its going to be ridiculously simple (how everything is connected and part of a larger whole) and we will wonder how we didnt recognize it while we were alive.
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Old Today, 08:47 AM
 
348 posts, read 179,973 times
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Awe-inspiring!
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