A new composite image of Saturn show its rings in unprecedented detail

A new composite image of Saturn show its rings in unprecedented detail | This Mars meteorite contains a toxin that makes pigs vomit (and humans, too) | China rolls out rocket to launch 3rd and final space station module (photos) Created for znamenski.spacecom@blogger.com |  Web Version October 26, 2022 CONNECT WITH SPACE.COM       Something amazing every day. SIGN UP ⋅   WEBSITE   The Launchpad A new composite image of Saturn show its rings in unprecedented detail (NASA/JPL-Caltech/SSI/Cornell) The image was taken by NASA's Cassini mission, which plunged to its death in Saturn's atmosphere in 2017. Full Story: Space (10/26)      This Mars meteorite contains a toxin that makes pigs vomit (and humans, too) (Purdue University/National Museum of Natural History/Calvero w/chemdraw) The detection of a toxin that makes humans and pigs vomit could solve the lingering 100-year-old mystery surrounding the pristine Martian meteorite nicknamed "Lafayette." Full Story: Space (10/26)      China rolls out rocket to launch 3rd and final space station module (photos) (OurSpace) China is nearly ready to launch the third and final piece of its modular crewed space station. Full Story: Space (10/26)      POLL QUESTION: Saturn's rings can be seen in glorious detail in a stunning new composite image comprising 41 observations by NASA's retired Cassini mission. Which astronomer is credited to have made the first known observations of Saturn's rings? Learn the answer here! Giovanni Domenico Cassini Galileo Galilei Nicolaus Copernicus Johannes Kepler Space Deal of the Day Telescope deal: Save over $40 on the Celestron AstroMaster 70AZ (Jamie Carter) This telescope deal gives a 27% discount on Celestron's easy-to-use refractor and save over $40. Full Story: Space (4/12)      Skywatching The 2022 Orionid meteor shower put on a show for skywatchers around the world (gallery) (Samil Cabrera) Space.com received numerous photos of this year's Orionid meteor shower submitted by our readers. Full Story: Space (10/26)      Science & Astronomy NASA's asteroid surveyor snapped stunning shots of Earth and moon before heading to Jupiter's Trojans (NASA/Goddard/SwRI) The Lucy spacecraft took a magnificent photo of the Earth from nearly 400,000 miles away. Full Story: Space (10/26)      New James Webb Space Telescope photos show a massive galaxy cluster bending light (SCIENCE: NASA, ESA, CSA, STScI, and Tiger Hsiao (Johns Hopkins University) IMAGE PROCESSING: Alyssa Pagan (STScI)) Is it two galaxies, or two star clusters? Astronomers aren't yet sure what the James Webb Space Telescope spotted in an image of the early universe. Full Story: Space (10/26)      Astronomers watch DART mission's asteroid Didymos eclipsing stars with tricky technique (ASI) The observations will help scientists determine how much the orbit of Didymos around the sun has changed. Full Story: Space (10/26)      Spaceflight Opportunity Mars rover leader on 'Good Night Oppy' film, giving up Saturn (NASA) Steve Squyres had big plans to move to a new planet once the NASA Opportunity Mars rover finished its mission, but that idea got "completely derailed." Full Story: Space (10/26)      NASA's Voyager project scientist Ed Stone retires after 50 years (NASA/JPL-Caltech) Ed Stone is flying off into the sunset after 50 years as science chief of NASA's groundbreaking Voyager mission. Full Story: Space (10/26)      Entertainment Predator movies in order: chronological and release (20th Century Studios) Watch all the Predator movies in order, both chronological and release. From Predator to Prey, and including the Alien vs. Predator crossovers. Full Story: Space (10/26)        Sign Up  |    Update Profile  |    Unsubscribe Privacy Policy  |    Cookies Policy  |    Terms and Conditions CONTACT US: FEEDBACK  |    ADVERTISE Future US LLC © 1100 13th St. NW, Suite 1000, Washington, DC 20005

Seminars Digest, Vol 47, Issue 3

Send Seminars mailing list submissions to
seminars@itp.ac.ru

To subscribe or unsubscribe via the World Wide Web, visit
https://mailman.itp.ac.ru/mailman/listinfo/seminars
or, via email, send a message with subject or body 'help' to
seminars-request@itp.ac.ru

You can reach the person managing the list at
seminars-owner@itp.ac.ru

When replying, please edit your Subject line so it is more specific
than "Re: Contents of Seminars digest..."

Today's Topics:

1. Friday 28.10.2022 (Serge Krashakov)

----------------------------------------------------------------------

Message: 1
Date: Tue, 25 Oct 2022 19:22:23 +0300
From: Serge Krashakov <sakr@itp.ac.ru>
To: staff@itp.ac.ru, students@itp.ac.ru, seminars@itp.ac.ru
Subject: [Landau ITP Seminars] Friday 28.10.2022
Message-ID: <2df1d545-aa67-c70b-4408-613d492d4897@itp.ac.ru>
Content-Type: text/plain; charset="utf-8"; Format="flowed"

Уважаемые коллеги!

В пятницу 28 октября на заседании Ученого совета в 11:30,  будет
заслушан доклад:

_Е.А. Кузнецов_, Е.А. Михайлов
*Скользящие течения и их опрокидывание*

Исследуется процесс опрокидывания невязких несжимаемых течений вдоль
твердого тела со скользящими граничными условиями. Такие скользящие
течения являются сжимаемыми, что является основной причиной формирования
особенности на жесткой границе для градиента параллельной компоненты
скорости. Проанализированы аналитически проскальзывающие течения в
рамках двух- и трехмерных невязких уравнений Прандтля. Найдены критерии
градиентной катастрофы в обоих случаях. Для 2D уравнений Прандтля
опрокидывание имеет место как для параллельной скорости вдоль границы,
так и для градиента завихренности. Для трехмерных течений Прандтля
опрокидывание (формирование складки за конечное время) возникает для
симметричной части тензора градиента скорости, а также для
антисимметричной части – завихренности. Численно исследована задача о
формировании градиентов скорости для течений между двумя параллельными
пластинами в рамках двумерных уравнений Эйлера. Показано, что
максимальный градиент скорости экспоненциально растет во времени на
жесткой границе при одновременном росте градиента завихренности по
дважды экспоненциальному закону. Тщательный анализ показал, что этот
процесс есть не что иное, как формирование складки, со степенной
зависимостью между максимальными градиентом скорости и его шириной: max
|ux| ∝ ℓ –2/3.

ID и пароль онлайн-трансляции в Zoom те же, что и для предыдущих
трансляций докладов на Ученом совете:
https://zoom.us/j/96899364518?pwd=MzBsR2lYT0lYL2x2b1oyNU9LeWlWUT09
Meeting ID: 968 9936 4518
Пароль: 250319
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.itp.ac.ru/pipermail/seminars/attachments/20221025/c771c71f/attachment-0001.htm>

------------------------------

Subject: Digest Footer

_______________________________________________
Seminars mailing list
Seminars@itp.ac.ru
https://mailman.itp.ac.ru/mailman/listinfo/seminars

------------------------------

End of Seminars Digest, Vol 47, Issue 3
***************************************