Slashdot Mirror


User: tonique

tonique's activity in the archive.

Stories
0
Comments
192
First seen
Last seen
Profile
(view on slashdot.org)

Comments · 192

  1. Just a little further note

    So, black holes are basically as stars?!

    Okay, as far as I understand... Black holes have mass and stars have as well. A black curves the space-time much more than a star of the same mass but to be noticeable you have to be close to the black hole. (Also, tidal forces build Further away from the black hole, the curvature of space-time is practically the same as from any other object of the same mass. This means that replacing a star with a black hole of the same mass should not have noticeable effect on orbits sufficiently far away. I don't know how far away that is.

  2. I don't know... why expecting the same (tremendously simplistic) rules which work in our system to be applicable to any other galaxy and group of bodies? Anyway... I don't want to come into all this, just to understand this black-hole measuring situation, for what your comments are being very helpful. Thanks again.

    This is an important point: laws of physics are assumed to be same everywhere. If I'm not mistaken, that is what is also observed. This means that distant astronomical events (ie. in the past) follow theories developed on Earth.

    We don't know much about a black hole, but as I understand our guesses are pretty apocalyptic. So, how could the given planets continue orbiting under more or less the same rules than are applicable to a star (= gravity theory of relativity) when talking about a black hole? Shouldn't all of them be immediately suck into the black hole? Or, at least, should the situation become so crazily different than all the performed calculations wouldn't really make any sense?

    Sufficiently far from the black hole, gravity doesn't work differently when compared to another object of the same mass. That is, if the Sun was replaced with a a black hole of the same mass (event horizon diameter 6 km), the motions of the planets wouldn't change much. We'd notice the Sun's gone after eight minutes (it'd get dark, and then colder) but the Earth would continue in its orbit.

  3. I still think you pulled all of it out or your ass.

    That's intelligence.

  4. Re:Many stars are closer on Nearby Star Is Sun's Long-Lost Sibling (syfy.com) · · Score: 1

    I'm no expert of stellar movements either.But it is my understanding that it's quite like you described: small differences in velocity vectors mean the stars' paths diverge. Sensitivity to initial conditions, aka. deterministic chaos.

  5. Re:Many stars are closer on Nearby Star Is Sun's Long-Lost Sibling (syfy.com) · · Score: 4, Informative

    Perhaps, but not necessarily. In 4.5 billion years since its formation, the Sun and the solar system have gone round the Galaxy many times. There has been plenty of time for the stars formed at the same time and place to drift apart.

  6. Every hit goes into the global blockhain!

  7. Maybe something like PORTA STELLÅRIS.

  8. Is this the first step to the Electronic Bard? on A Computer Has Written A 'Novel' Narrating Its Own Cross-Country Road Trip (theatlantic.com) · · Score: 2

    And is Goodwin becoming Trurl?

  9. Re:Possible, but unlikely on Famed Mathematician Claims Proof of 160-Year-Old Riemann Hypothesis (soylentnews.org) · · Score: 1

    I think that's called the Gaussian dementia.

  10. Re:There goes most encryption on Famed Mathematician Claims Proof of 160-Year-Old Riemann Hypothesis (soylentnews.org) · · Score: 4, Insightful

    To predict the prime numbers, you need *many* nontrivial zeroes of the Riemann zeta function calculated with high accuracy. How many are we talking about I have no real idea, but the one million zeroes published by Andrew Odlyzko aren't sufficient very far.

  11. Re:Already available since forever. on Linux On Windows 10: Running Ubuntu VMs Just Got a Lot Easier, Says Microsoft (zdnet.com) · · Score: 1

    Steam Beta Update. You get a link on each game's library page saying "Runs on this computer via Steam Play". Not everything works, but it's worth a try.

  12. Re:BeauHD apparently failed 5th grade math on Scientists Calculate the Speed of Death In Cells And It's 30 Micrometers Per Minute (livescience.com) · · Score: 1

    That should be 30 micrometres.

  13. Re:BeauHD apparently failed 5th grade math on Scientists Calculate the Speed of Death In Cells And It's 30 Micrometers Per Minute (livescience.com) · · Score: 1

    30 m is approximately 0.0012 inches, so one thousandth of an inch isn't far off.

  14. I'd think multiplying by four is easy for Quadro cards.

  15. In the commercial realm, there's Bricscad also for Linux. It is quite compatible with Autocad.

  16. Re:A Utilities Package I wrote: 5-5 star rated @ZD on Mozilla to Remove Support for Built-In Feed Reader From Firefox (bleepingcomputer.com) · · Score: 0

    I've always liked WindowsÃÂÃÂÃÂÃÂ. It's better than WindowsÄÄÄÄÄÄÄÄ.

  17. Re:And the other boot drops. on Google Maps API Becomes 'More Difficult and Expensive' (govtech.com) · · Score: 1

    Yes, the Openstreetmap.org site search is lacking. One site that is better, using OSM data, is Graphhopper. Just remember that the driving directions are just as good as the data on OSM. Sometimes OSM editors make mistakes...

  18. When you go to the zooming page for each painting and click the download button, you get a link to the terms and conditions (hope the link works).

    1. Images of the Van Gogh Museum collection up to and including A4 size in TIF format may be downloaded and distributed for non-commercial use, with the exception of images of works by artists in our collection that are still subject to copyright, in other words by artists who have been dead for less than 70 years. These include Pierre Bonnard, Charles-Louis Houdard, Artistide Maillol (died 27 September 1944), Henri Rivière and Kees van Dongen.

    They prohibit commercial use. That isn't defined, though. And the download link goes to a jpg.

  19. Eg. The Sunflowers can be downloaded as large size, that is 2236x2930 pixels. It's a JPEG of 1.9 MB, in eciRGB v2 colour space.

    That seems to be the same on the screen size as maximum zoom in the viewer...

  20. Re:Too much work on Plastic Recycling Is a Problem Consumers Can't Solve (bloomberg.com) · · Score: 1

    In another place in the Nordic countries, the bins are common to the housing unit and a bin lorry comes and empties them. No need to push anything yourself!

    And yes, some people sort their rubbish wrong even here.

  21. Actual press release on New Horizons Spacecraft Wakes Up To Prepare For Historic Flyby of Distant Object (space.com) · · Score: 4, Informative

    A link to to the actual New Horizons site should be informative as well.

  22. Re: Running it from another drive? on Windows 10 Spring Update Improves Linux On WSL With Unix Sockets and More (anandtech.com) · · Score: 1

    You'd have to call it the Linux supersystem by then, I think. Also "mission accomplished"!

  23. Fuck you, fuck you, fuck you, fuck you

  24. Re:The Link goes to the wrong article on Bloomberg on Microsoft Turned Customers Against the Skype Brand (bloomberg.com) · · Score: 1

    Beau didn't correct the link in the heading for Telegram's Billion-Dollar ICO Has Become a Mess, which goes to "developer.amazon.com/alexa/smart-home/compatible". Techcrunch is linked in the text, though.

  25. Re:Why would you search for "Reddit" though? on If Fortnite Were a Website, It Would Rival Reddit and Amazon (tomsguide.com) · · Score: 1

    They probably don't know better. See also alvinrod's comment. "Don't know better" or "idiots", choose your expression.