Einstein was......

[spintheblackcircle]

...right!

First detection of light from behind a black hole | Stanford News

Fulfilling a prediction of Einstein’s theory of general relativity, researchers have reported the first-ever recordings of X-ray emissions from the far side of a black hole.

Click to read more...

 

[Cloned]

It's actually somewhat amazing how prescient some of humanity's brightest scientists have been, from Newton to Einstein to Hawking.

 

[beowulf]

Cool that a Canadian was part of the group that made the discovery/confirmation

Halifax researcher part of team behind black hole discovery that proves Einstein right | Globalnews.ca

A researcher at Saint Mary’s University in Halifax was part of a team of scientists that observed light coming from behind a black hole for the very first time, confirming a prediction from famous physicist Albert Einstein’s theory of general relativity.
While scientists have seen X-ray emissions around black holes before, it’s the first time light has been spotted behind a black hole – and the new discovery could lead to a better understanding of what’s still largely considered to be an astronomical mystery.
Luigi Gallo, a professor of astronomy at Saint Mary’s University who’s been studying black holes for 20 years, worked on the data analysis and interpretation for this research project, led by Stanford University astrophysicist Dan Wilkins.

 

[climbingbill]

This is Hippasus:

. . . unable to integrate the cosmos with the minutiae.

 

[JMCx4]

This is Hippasus:

. . . unable to integrate the cosmos with the minutiae.

Hippasus was......irrational.

 

[Eisen]

X rays count as light? It's radiation, but light?

 

[Hippasus]

X rays count as light? It's radiation, but light?

There are two senses of light used in physics: (1) visible light, and (2) any wavelength of electromagnetic radiation. If 'light' is referred to in the first sense, X-rays correspond to electromagnetic radiation with an "increasing frequency and decreasing wavelength" compared to visible light on the electromagnetic spectrum.

In order of increasing frequency and decreasing wavelength these are: radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, X-rays and gamma rays.

Electromagnetic radiation - Wikipedia

When physicists talk about the speed of light they are referring to light in the second sense above and in a vacuum.

Speed of light - Wikipedia

 

[Eisen]

There are two senses of light used in physics: (1) visible light, and (2) any wavelength of electromagnetic radiation. If 'light' is referred to in the first sense, X-rays correspond to electromagnetic radiation with an "increasing frequency and decreasing wavelength" compared to visible light on the electromagnetic spectrum.



Electromagnetic radiation - Wikipedia

When physicists talk about the speed of light they are referring to light in the second sense above and in a vacuum.

Speed of light - Wikipedia

It's funny. I looked "Licht" (light) up on German wiki and they make two distinctions as well. First, visible light, obviously, and second visible plus ultraviolet and infrared. Xrays were not part of the description. I just looked it up on the English page (light) and it includes xrays. Apparently, it is not always referred to as light, but it's not uncommon.

 

[tarheelhockey]

It's actually somewhat amazing how prescient some of humanity's brightest scientists have been, from Newton to Einstein to Hawking.

There's a lesson here... just keep following the math.