Несколько способов определения сторон света в ночное время суток по звездам и Луне.
Некоторые из приведенных методов дают значительную погрешность, например, метод определения по направлению движения звезд. Поэтому данные методы применимы только в тех случаях, когда нет специальных устройств (компас или GPS) либо их применение затруднено.

P.S. Метод ориентирования по Луне приведен для северного полушария. В южном полушарии метод работает аналогичным образом, но при растущей Луне цифры складываются, а при стареющей — отнимаются. В результате определяется не южное направление, а северное.

#Болотников #Проповедь #РазборТоры

planetarium.ru/?from=yt — Магазин, где вы можете купить телескоп и другую оптику
Получи гарантированную скидку по промо-коду «2020»!!!

Поддержите проект на Патреоне! www.patreon.com/astrochannel
Яндекс-деньги: 41001430737135

21 декабря состоится великое соединение Юпитера и Сатурна! Что-то подобное было более 400 лет назад! С ума сойти! В ближайшие дни у нас есть шанс увидеть редчайшее астрономическое явление. О том, как это сделать, расскажу в этом видео. Поехали!

Примерно каждые 20 лет происходят обычные сближения Юпитера и Сатурна, а вот более тесные соединения — куда более редкая история. Цените момент!

youtu.be/w0I2Kwu3pT8

Кого утомит объяснение фокусов, перематывайте на 14:10, там весьма интересная визуализация числа 52! Включите аннотации и приостановите adblock на время просмотра, есть уточнение аннотациями.
Группа озвучек в вк: vk.com/public60480847
Оригинал: www.youtube.com/watch?v=ObiqJzfyACM
Поблагодарить дублонами через яндекс-кошелек: 41001106158836.

Статья о часто загадываемых картах: www2.psych.ubc.ca/~rensink/publications/download/Cards-OAR.pdf
Объяснение 52! от Скотта Чипиела: czep.net/weblog/52cards.html
Остальные ссылки под описанием оригинала.

Physics students learn the speed of light, c, is the same for all inertial observers but no one has ever actually measured it in one direction. Thanks to Kiwico for sponsoring this video. For 50% off your first month of any crate, go to kiwico.com/veritasium50

Huge thanks to Destin from Smarter Every Day for always being open and willing to engage in new ideas. If you havent subscribed already, what are you waiting for: ve42.co/SED

For an overview of the one-way speed of light check out the wiki page: ve42.co/wiki1way

The script was written in consultation with subject matter experts:
Prof. Geraint Lewis, University of Sydney ve42.co/gfl
Prof. Emeritus Allen Janis, University of Pittsburgh
Prof. Clifford M. Will, University of Florida ve42.co/cmw
The stuff thats correct is theirs. Any errors are mine.

References:
Einstein, A. (1905). On the electrodynamics of moving bodies. Annalen der physik, 17(10), 891-921.
(English) ve42.co/E1905 (German) ve42.co/G1905

Greaves, E. D., Rodríguez, A. M.,

Join in the Superpermutation effort! The best place to start is the google group:
groups.google.com/forum/#!forum/superpermutators

This is where Robin Houston does his real job: Flourish Data Visualisation
flourish.studio

James Grimes video: Superpermutations — Numberphile
www.youtube.com/watch?v=wJGE4aEWc28

A lower bound on the length of the shortest superpattern
Anonymous 4chan Poster, Robin Houston, Jay Pantone, and Vince Vatter
oeis.org/A180632/a180632.pdf

«The Haruhi Problem»
More formally, «what is the shortest string containing all permutations of a set of n elements?»
mathsci.wikia.com/wiki/The_Haruhi_Problem

Archived 4chan post. If you dont know what 4chan is: click with caution.
warosu.org/sci/thread/S3751105#p3751197

Nathaniel Johnston: «The Minimal Superpermutation Problem»
www.njohnston.ca/2013/04/the-minimal-superpermutation-problem/

Superpermutations by Greg Egan
www.gregegan.net/SCIENCE/Superpermutations/Superpermutations.html

Robins tweet:
«A curious situation. The best known lower bound for the minimal length of superpermutations was proved by an anonymous user of a wiki mainly devoted to anime.»
twitter.com/robinhouston/status/1054637891085918209

LKH: Lin-Kernighan heuristic for solving the traveling salesman problem
akira.ruc.dk/~keld/research/LKH/

CORRECTIONS
— Not yet. Let me know if you spot anything!

Thanks to my Patreon supports who do support these videos and make them possible. Here is a random subset:

Lucie
Thomas Hodnemyr
Euler
Jordan Scales
Håkan Johansson

Support my channel and I can make more maths videos:
www.patreon.com/standupmaths

Music by Howard Carter
Filming and editing by Trunkman Productions
Design by Simon Wright

MATT PARKER: Stand-up Mathematician
Website: standupmaths.com/
Maths book: wwwh.umble-pi.com
Nerdy maths toys: mathsgear.co.uk/

This is Part III out of one with a quadrillion zeros parts.

Give the gift of Stand-up Maths this Christmas:
www.patreon.com/standupmaths
mathsgear.co.uk/

Part I: «Why do Bidens votes not follow Benfords Law?»
www.youtube.com/watch?v=etx0k1nLn78

Part II: «Do these scatter plots reveal fraudulent vote-switching in Michigan?»
www.youtube.com/watch?v=aokNwKx7gM8

Here is the Supreme Court filing from the State of Texas:
www.supremecourt.gov/DocketPDF/22/22O155/162953/20201207234611533_TX-v-State-Motion-2020-12-07 FINAL.pdf

Declaration of Charles J. Cicchetti, Ph.D. is in the appendix of this document, starting on page 20.
www.supremecourt.gov/DocketPDF/22/22O155/163048/20201208132827887_TX-v-State-ExpedMot 2020-12-07 FINAL.pdf

Behold my declaration.
www.dropbox.com/s/337h06gx5t6tjte/Declaration of Matthew T. Parker, B.Sc. Dip. Ed. (2020).pdf?dl=0

Here is the spreadsheet where I checked the combinations of states won by Democrats.
www.dropbox.com/s/d1sat2bjb1ts9n3/combinations-of-states-won.xlsx?dl=0

CORRECTIONS
— At 01:51 I accidentally said “Senate” when I meant “Congress”. But on-screen it says “House Republicans” so I think it still makes sense despite my mis-speak.
— Let me know if you spot any more mistakes!

Thanks to my Patreons who mean I can keep throwing time and effort at videos about this election. And dont worry, I am a prudent spender of your money: that judges robe was hired not purchased outright. But I do now own the wig.
www.patreon.com/standupmaths

As always: thanks to Jane Street who support my channel. Theyre amazing.
www.janestreet.com/

Music by Howard Carter
Design by Simon Wright and Adam Robinson

MATT PARKER: Stand-up Mathematician
Website: standupmaths.com/
US book: www.penguinrandomhouse.com/books/610964/humble-pi-by-matt-parker/
UK book: mathsgear.co.uk/collections/books/products/humble-pi-signed-paperback

Tom flew on a Zero-G flight with the European Space Agency for this week’s video on his channel. This is the behind the scenes.
MATT: YouTube.com/unnamedculprit | TOM: YouTube.com/TomScottGo

(And if youre from a space agency, do get in touch! www.tomscott.com/contact/ )

How Zero-G Planes Work
www.youtube.com/watch?v=FO_Ox_dH0M8

If youre a masters or PhD student from an ESA member state, and zero-g sounds like your thing, have a look at the Fly Your Thesis program: www.esa.int/Education/Fly_Your_Thesis — the 2017-18 submissions are closed, but that just gives you time to start planning for next year…

techdif.co.uk — Were back! We start with the tale of Thomas Trueblood, rapidly steer off into the 1904 Olympic marathon — perhaps the most ridiculous Olympic race ever — and then have a quick discussion about a man called Jam Handy. Get your mystery biscuits ready.

BONUS MATERIAL — Gary Spots an Ice Cream Van: youtu.be/a5Q04hmXmjY
THE FULL PLAYLIST: www.youtube.com/playlist?list=PL96C35uN7xGIo2odDuuPeYtb7BtQ1kBhp

TOM is @tomscott and at tomscott.com
GARY is @garybrannan
MATT is @unnamedculprit and at mattg.co.uk
CHRIS doesnt do this social media nonsense.

Урок физики в Ришельевском лицее