Quantum, Relativity & Forces Explained | Pixelated Physics
8 articles
Penrose Diagrams Explained: All of Spacetime on...
How do you draw the whole of space and time, out to infinity, on one sheet of paper? Roger Penrose found a way: shrink distances but keep every angle, so...
Penrose Diagrams Explained: All of Spacetime on...
How do you draw the whole of space and time, out to infinity, on one sheet of paper? Roger Penrose found a way: shrink distances but keep every angle, so...
How Do We Know Black Holes Exist if We Cannot S...
A black hole gives off no light of its own, so how can anyone claim to have found one? Through four independent lines of evidence: X-ray binaries like Cygnus X-1,...
How Do We Know Black Holes Exist if We Cannot S...
A black hole gives off no light of its own, so how can anyone claim to have found one? Through four independent lines of evidence: X-ray binaries like Cygnus X-1,...
What Is the Photon Sphere, and What Did the Eve...
Near a black hole there is a radius where gravity bends light into a circle: the photon sphere, at r = 3GM/c² for a non-spinning hole. It is unstable, so...
What Is the Photon Sphere, and What Did the Eve...
Near a black hole there is a radius where gravity bends light into a circle: the photon sphere, at r = 3GM/c² for a non-spinning hole. It is unstable, so...
What Is Spaghettification? Tidal Forces Near a ...
Spaghettification is the stretching of an object by tidal forces: gravity pulls harder on the near end than the far end. Near a stellar-mass black hole it would tear a...
What Is Spaghettification? Tidal Forces Near a ...
Spaghettification is the stretching of an object by tidal forces: gravity pulls harder on the near end than the far end. Near a stellar-mass black hole it would tear a...
Stephen Hawking: What Did He Predict, and What ...
Hawking’s 1974 prediction that black holes radiate is central theoretical physics — and still unobserved in astrophysical black holes. Analogue experiments are not detections. The information paradox is open. Penrose’s...
Stephen Hawking: What Did He Predict, and What ...
Hawking’s 1974 prediction that black holes radiate is central theoretical physics — and still unobserved in astrophysical black holes. Analogue experiments are not detections. The information paradox is open. Penrose’s...
What Is the Black Hole Information Paradox? Whe...
If black holes evaporate into featureless heat, what happens to everything that fell in? Here is Hawking’s paradox, the Page curve that turned it into a calculation, the recent “island”...
What Is the Black Hole Information Paradox? Whe...
If black holes evaporate into featureless heat, what happens to everything that fell in? Here is Hawking’s paradox, the Page curve that turned it into a calculation, the recent “island”...