Category: computing

What’s It Like When You Fall Into A Blac…

What’s It Like When You Fall Into A Black Hole?

From outside a black hole, all the infalling matter will emit light and always is visible, while nothing from behind the event horizon can get out. But if you were the one who fell into a black hole, what you’d see would be interesting and counterintuitive, and we know what it would actually look like.

Via Forbes – Ask Ethan

Gif info: General relativistic visualization of a supercomputer magneto-hydrodynamic simulation of a disk and jet around a black hole. The disk and jet were supercomputed by John Hawley at the University of Virginia. The general relativistic rendering was done with the Black Hole Flight Simulator.

Remembering Murray Gell-Mann (1929–2019), Inve…

Remembering Murray Gell-Mann (1929–2019), Inventor of Quarks—Stephen Wolfram Blog:

A nice weekend-reading. Murray Gell-Mann as seen by Stephen Wolfram (guest stars: Richard Feynman, George Zweig, Steve Jobs and S. Wolfram himself of course). A very interesting essay at several levels, much more than a typical obituary.

Maps of tumours grown in mice. (Credit: Arvind…

Maps of tumours grown in mice. (Credit: Arvind Pathak)

Via Physics World / Biophysics

Exciting ***** moments in physics last 5 years…

Exciting ***** moments in physics last 5 years (in order of discovery):

* Higgs particle

* Gravitational waves, including colliding black holes and neutron stars – might be 6 star 😉

* The M87 black hole image for sure!

All of them took a long time from idea -> experiment (50 and 100 years respectively)

In science in general:

* CRISPR-Cas genetic editing

* AI and deep learning, solving Go, Chess, and protein folding.

* Quantum technology: quantum computers, quantum internet etc.

Conclusion: it’s a golden era for science

M87 Black Hole Size Comparison

M87 Black Hole Size Comparison

xkcd

Alt/title text:

“I think Voyager 1 would be just past the event horizon, but slightly less than halfway to the bright ring.”

More:

– Explain xkcd

– Focus on the First Event Horizon Telescope Results – The Astrophysical Journal Letters – IOPscience

– NASA news: Black Hole Image Makes History; NASA Telescopes Coordinated Observations

NSF Media resources

– Event Horizon Telescope (Official website)

Easiest now, right?

Easiest now, right?

This is lovely, home.cern goes retro to commem…

This is lovely, home.cern goes retro to commemorate 30 years of the Web starting today

1 April

. (blog).

I smiled at this piece:

image

30th Anniversary of the World Wide Web(from …

30th Anniversary of the World Wide Web

(from CERN)

Please don’t confuse WWW with the Internet, they aren’t the same! Tim Berners-Lee and Vint Cerf show this fairly eloquently:

More:

A crop showing the details of the moon.[&helli…

A crop showing the details of the moon.

[…] It may look like it was captured using some ultra-advanced (and expensive) equipment, but it was actually created by astrophotography enthusiast Andrew McCarthy by capturing and combining 50,000 photos.

Via PetaPixel

Cool. This guy has collected all the daily ima…

Cool. This guy has collected all the daily images of the satellite-based Soumi VIIRS sensor, and calculated the per-pixel average over the whole year of 2018.