mc ☕ @mc@qoto.org

The "Dog and Monkey Hotel," a vaudeville theater act, 1915

Computers are not smart. They know only one arithmetic operation: addition. A clever trick called "radix complement" allows computers to subtract two numbers by adding them! In base-2, this has a special name: Two's Complement.

But you can even do this in base-10 (decimal), base-16 (hexadecimal), or any other counting base you can think of!

The best part is: IT WORKS!

Subtract like a computer today with RADIX COMPLEMENT ARITHMETIC! 😄

#math #computers #computerscience

#Herman by #JimUnger for 1984-10-2.

#comics #comicstrip

"A rare type of black hole never proven to exist could be orbiting our galaxy right now, Hubble telescope reveals

The Hubble Space Telescope may have just found a rare "missing link" black hole hiding in Earth's cosmic backyard.

Located roughly 6,000 light-years away at the core of the nearby star cluster Messier 4, the intermediate-mass black hole candidate is an ultradense region of space packed with the mass of 800 suns, causing nearby stars to orbit it like "bees swarming around a hive," according to the researchers who detected it."

🔗: https://www.livescience.com/space/black-holes/a-rare-type-of-black-hole-never-proven-to-exist-could-be-orbiting-our-galaxy-right-now-hubble-telescope-reveals

#BlackHole #Hubble #Space #Astronomy #science

This monstrous explosion might be the result of a black hole consuming a gas cloud a billion times as massive as the Sun. If so, it "represents an extreme extension of the known scenarios of black hole accretion."
https://academic.oup.com/mnras/article/522/3/3992/7115325?login=false #BlackHole #cosmology

A "Vargas Girl," from 1942, by artist Joaquin Alberto Vargas y Chávez. Vargas was a Peruvian immigrant who made it big in America. His work appeared in Esquire magazine during WWII and in Playboy during the 1960's and '70s. He defined the pin-up genre and is considered its best artist.

Healing wounds with differential equations. Professor Jennifer Flegg uses mathematics to solve biological problems like wound healing and infectious diseases.
Source : The University of Melbourne / Pursuit / Professor Jennifer Flegg

https://pursuit.unimelb.edu.au/articles/healing-wounds-with-differential-equations
#mathematics #math #maths

German word of the day:

Wortschöpfungströten

The act of making up words on Mastodon.

this beautiful baby lives in the wild of Oregon

parody of Nighthawks.
#art #arthistory #painting

Are you looking for a great browser-based application to search interactively for #astronomy related image data?

Check out ESA's ESASky. I created a short ... YouTube short about it.

A follow-up on ESA's #python JupyterLab extension will be shown soon.

#space #science

https://youtube.com/shorts/wGrDqsttndU?feature=share

photo is labeled "cowgirls, 1898"
#Wyoming
#history #photography

@ladyastronomer
I think Dark Matter is everywhere, but we can see it best around other matter, like galaxy clusters. A possibility from a view of String Theory is that Dark Matter appears to us as an effect of string/anti-string annihilations. As you may know, quantum mechanics requires that strings must be formed as pairs in the quantum foam – a string and an anti-string – that immediately annihilate each other. Quantum mechanics also requires both the string and anti-string to be surrounded by “jitters” that reduce their monstrous vibrating energies. What if this jitter remains for a fraction of an instant after their string/anti-string annihilations? This temporary jitter would be seen by us as matter, via E=mc2, for that instant before it too returns to the foam. That’s why we never see it – the “mass” lasts only for that instant but is repeated over and over and over, all over. Specifics on this can be found in this YouTube https://www.youtube.com/watch?v=N84yISQvGCk
#astronomy #Science #darkmatter