Fun fact: velky cerny diry maji prekvapive nizkou hustotu protoze polomer zalezi ciste na hmotnosti. Z https://arxiv.org/pdf/1312.0340.pdf

Surprisingly, the average density decreases dramatically for massive black holes. A black hole of 387 million solar masses would have the average density of water and would be comparable to a giant water balloon extending from the sun almost to Jupiter. A black hole of 11 billion solar masses would have the average density of air and would be analogous to a giant air filled party balloon extending 2.5 times farther out than Pluto.

Takze jestli je xkcd spravne, tak tahle ma hustotu plus minus jako vzduch 8-0

ATOMIKS: Kdyz uz, tak s popiskem:

Figure 4. Top: three example models of some of the best-fitting snapshots from the image library of GRMHD simulations for April 11 corresponding to different spin parameters and accretion flows. Bottom: the same theoretical models, processed through a VLBI simulation pipeline with the same schedule, telescope characteristics, and weather parameters as in the April 11 run and imaged in the same way as Figure 3. Note that although the fit to the observations is equally good in the three cases, they refer to radically different physical scenarios; this highlights that a single good fit does not imply that a model is preferred over others (see Paper V).

(Fig. 3 je ta "fotka" samotna.)

sry :)

ARCHIMEDES: Beresheet by měl dosednout mezi 21 a 22h SELČ.

Accretion flow onto a Kerr Black Hole and Raytraced Emission
https://www.youtube.com/watch?v=XmvpKFSvB7A

Telescopes in the Event Horizon Telescope Collaboration in 2017
https://www.youtube.com/watch?v=Ame7fzBuFnk

já jsem rád za to, že to má dynamiku a potřebu větších detailů, že zdaleka není mise splněna .o)

[ CLUMP @ fotky/obrázky země, sluníčka a všech planet z vesmíru ]



a pro připomenutí, na co koukáme https://www.nasa.gov/feature/goddard/2017/messier-87

KAERO: to nerozporuju. Skeptik? Ani ne, jsem nadsenej. Vic, nez kdyby nam to vsechny teorie shodilo ze stolu. Znamena to, ze jsme na spravne stope.

A jsem dost zvedavej na magneticky pole. Ty data ziskana behem posledniho roku budou asi analyzovat dalsich pet let.

A hlavne ted prijde na radu vylepsovani procesu, presun teleskopů do vesmiru. Proste je to jen prvni vlastovka. I kdyz u hubbleova teleskopu byly prvni snimky rozostrene kvuli spatnemu brusu, verim, ze vysledek vyzkumu eht bude podobnej, jako kdyz hubble opravili.

AVATAR: jsi moc skepticky. to ze se model overi pozorovanim je proste naprosto uzasne a skvele! bez toho jsou ty modely skoro k nicemu

The information gathered is too much to be sent across the internet. Instead the data was stored on hundreds of hard drives which were flown to a central processing centre.

v rozlišení