Mechanical puzzles | Combination puzzles
Alexander's Star
Alexander's Star is a puzzle similar to the Rubik's Cube, in the shape of a great dodecahedron. (Wikipedia).
Mechanical puzzles | Combination puzzles
Alexander's Star is a puzzle similar to the Rubik's Cube, in the shape of a great dodecahedron. (Wikipedia).
http://www.teachastronomy.com/ Nearly 2,000 years ago Ptolemy's Almagest, a compendium of astronomical information, contained catalogs of star names. Ancient knowledge was brought to Europe by Arab astronomers who gave names to many of the brightest stars in the sky. The Arab article is
From playlist 14. Stars
Jesus and His Jewish Influences | Alexander the Great
Alexander the Great's legendary visit to Jerusalem and Judea had a profound influence on the development of ancient Jewish traditions. Could the ancient warrior also have served as a model for the mythical Jesus? 00:00 Alexander Becomes King of Macedonia, Conquers Persia 02:26 Few Source
From playlist Latest Uploads
Astronomy - Ch. 24: Variable Stars (1 of 26) Variable Star Types
Visit http://ilectureonline.com for more math and science lectures! To donate: http://www.ilectureonline.com/donate https://www.patreon.com/user?u=3236071 We will learn that a variable star is a star whose “apparent brightness” changes or fluctuates over time a seen from Earth. There are
From playlist ASTRONOMY 24 VARIABLE STARS
Alexander the Great Family Tree
Get the poster: https://usefulcharts.com/products/ancient-history-family-trees CREDITS: Chart: Matt Baker Script/Narration: Matt Baker Editing: Jack Rackam Intro animation: Syawish Rehman Intro music: "Lord of the Land" by Kevin MacLeod and licensed under Creative Commons Attribution l
From playlist Royal Family Trees
The Star of the Eclipse: The Sun | Total Solar Eclipse | Exploratorium
There are many highlights to a total solar eclipse. Whether observing on the path of totality or enjoying the Exploratorium programs online, the sun presents various features to notice during all phases of an eclipse. Exploratorium astronomer, Isabel Hawkins points out these phenomena and
From playlist Total Solar Eclipse
Star Classification - Sixty Symbols
The Sun is designated as a "G2V" star. What does that mean? Featuring Michael Merrifield, Amanda Bauer and Chris Conselise. Classifying stars - it's the first step we need to start our understanding of stars. Why do we give the star types such weird letters to classify them? Spectroscopi
From playlist Astronomy from Sixty Symbols
Earth's sister planet has a symbol derived from a hand mirror. More physics and astronomy at http://www.sixtysymbols.com/
From playlist The Sixty Symbols Solar System
The Universe: The Constellations | History
Tuesdays at 9/8c on History. Though we now know the true nature of stars, the stories behind constellations continue to inspire. HISTORY®, now reaching more than 98 million homes, is the leading destination for award-winning original series and specials that connect viewers with history
From playlist The Universe | History
Markus Pflaum: The transverse index theorem for proper cocompact actions of Lie groupoids
The talk is based on joint work with H. Posthuma and X. Tang. We consider a proper cocompact action of a Lie groupoid and define a higher index pairing between invariant elliptic differential operators and smooth groupoid cohomology classes. We prove a cohomological index formula for this
From playlist HIM Lectures: Trimester Program "Non-commutative Geometry and its Applications"
Hamilton: Behind The Musical | Full Documentary | Amplified
The remarkable story of how a group of inspired mavericks made an unlikely marriage of hip-hop and history the biggest musical show in America...and are getting ready to conquer the world. Content licensed from Vision Films. Any queries, please contact us at: owned-enquiries@littledotstud
From playlist Biographical Documentaries
Fernando Galaz Garcia: Three dimensional Alexandrov spaces with positive and non negative curvature
I will discuss the topological classification of closed three-dimensional Alexandrov spaces with positive or non-negative curvature, both in the Alexandrov and CD(K,N) sense. This is joint work with Luis Guijarro, Michael Munn and Qintao Deng. The lecture was held within the framework of
From playlist HIM Lectures: Follow-up Workshop to JTP "Optimal Transportation"
The Fermi Paradox — Where Are All The Aliens? (1/2)
The universe is unbelievably big – trillions of stars and even more planets. Soo… there just has to be life out there, right? But where is it? Why don’t we see any aliens? Where are they? And more importantly, what does this tell us about our own fate in this gigantic and scary universe?
From playlist The Existential Crisis Playlist
A survey of quandle theory by Mohamed Elhamdadi
PROGRAM KNOTS THROUGH WEB (ONLINE) ORGANIZERS: Rama Mishra, Madeti Prabhakar and Mahender Singh DATE & TIME: 24 August 2020 to 28 August 2020 VENUE: Online Due to the ongoing COVID-19 pandemic, the original program has been canceled. However, the meeting will be conducted through onli
From playlist Knots Through Web (Online)
Plato and Aristotle: Crash Course History of Science #3
Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse Last week, we met the Presocratics: despite having by any reasonable standard invented science in Europe, these thinkers are lumped together today as simply “not Socrates.” So who
From playlist Back to School - Expanded
The Fermi Paradox II — Solutions and Ideas – Where Are All The Aliens?
Where are all the aliens? The universe is too big and too old, why have we not met aliens yet? Do they live in computers? Were they wiped out by an ancient super intelligence? Or are we just to primitive to understand their motives? Whatever the answer is, it is incredibly important for ou
From playlist The Existential Crisis Playlist
Life As An Astronaut On The International Space Station [4K] | Cosmic Encounters | Spark
“Cosmic Encounters” tells one of mankind’s oldest dreams: to explore what is beyond our planet. For the first time in TV history a documentary has been filmed in 3D in space by the astronauts of the International Space Station. It is a tribute to the many scientists who made the dream of c
From playlist 4K Science Documentaries
Yi Liu: On the L2-Alexander torsion of 3-manifolds
For an irreducible orientable compact 3-manifold with empty or incompressible toral boundary, the full L2-Alexander torsion associated to any real first cohomology class of that manifold is represented by a function of a positive real variable. In this talk, I will discuss some ideas to sh
From playlist HIM Lectures: Junior Trimester Program "Topology"
http://www.teachastronomy.com/ Nearly 2,000 years ago Ptolemy's Almagest, a compendium of astronomical information, contained catalogs of star names. Ancient knowledge was brought to Europe by Arab astronomers who gave names to many of the brightest stars in the sky. The Arab article is
From playlist 14. Stars
India: Crash Course History of Science #4
You might have recognized the names of some of the Greek natural philosophers. They were individuals with quirky theories, and we have records about them. But they weren’t the only people making knowledge back in the day. Today, Hank takes us to India to talk Vedas, Maurya Empires, and som
From playlist History of Science