Hyperbolic geometry | Circle packing | Fractals
In mathematics, an Apollonian gasket or Apollonian net is a fractal generated by starting with a triple of circles, each tangent to the other two, and successively filling in more circles, each tangent to another three. It is named after Greek mathematician Apollonius of Perga. (Wikipedia).
Apollo 12 on the Ocean of Storms
Ultra high-resolution photos of this historic second manned mission to the moon, including breathtaking photos of the lunar surface. Credit NASA.
From playlist Earth And Its Moon
http://www.teachastronomy.com/ Pluto is the outer sentinel of the solar system. With a size of only 2,300 kilometers, it is half the size of Mercury and two-thirds the size of Earth's moon. Its mean distance from the sun is 39 astronomical units, but it has a highly eccentric orbit with
From playlist 10. The Solar System
Alex Kontorovich - Diophantine problems in thin orbits
Diophantine problems in thin orbits
From playlist 28ème Journées Arithmétiques 2013
From playlist Exploring Mathematics: Fractals
Sabyasachi Mukherjee: Interbreeding in conformal dynamics, and its applications near and far
HYBRID EVENT Recorded during the meeting "Advancing Bridges in Complex Dynamics" the September 24, 2021 by the Centre International de Rencontres Mathématiques (Marseille, France) Filmmaker: Guillaume Hennenfent Find this video and other talks given by worldwide mathematicians on CIRM
From playlist Virtual Conference
Saturn: Crash Course Astronomy #18
Saturn is the crown jewel of the solar system, beautiful and fascinating. It is a gas giant and has a broad set of rings made of ice particles. Moons create gaps in the rings via their gravity. Saturn has dozens of moons, including Titan, which is as big as Mercury and has a thick atmosphe
From playlist Astronomy
G. Walsh - Boundaries of Kleinian groups
We study the problem of classifying Kleinian groups via the topology of their limit sets. In particular, we are interested in one-ended convex-cocompact Kleinian groups where each piece in the JSJ decomposition is a free group, and we describe interesting examples in this situation. In ce
From playlist Ecole d'été 2016 - Analyse géométrique, géométrie des espaces métriques et topologie
Here's an antique FOOS JR hit & miss gas engine .
From playlist ANTIQUE ENGINES
Studying Apollonian Circle Packings using Group Theory
This video is in response to a colleague who asked for short videos about how we use group theory in our research. One of my interests is Apollonian circle packings. Some links: Wikipedia: https://en.wikipedia.org/wiki/Apollonian_gasket An article in New Scientist by Dana Mackenzie: ht
From playlist Joy of Mathematics
Stirling Engine with Rhombic Drive Part 1
Refurbishment of old project
From playlist STIRLING CYCLE ENGINES HOT AIR ENGINES
Thin Groups and Applications - Alex Kontorovich
Analysis and Beyond - Celebrating Jean Bourgain's Work and Impact May 21, 2016 More videos on http://video.ias.edu
From playlist Analysis and Beyond
http://demonstrations.wolfram.com/PappusChain/ The Wolfram Demonstrations Project contains thousands of free interactive visualizations, with new entries added daily. The Pappus chain extends across at least two millennia of mathematics. Its origins trace back to the ancient Greek ma
From playlist Wolfram Demonstrations Project
The Beauty of Fractal Geometry (#SoME2)
0:00 — Sierpiński carpet 0:18 — Pythagoras tree 0:37 — Pythagoras tree 2 0:50 — Unnamed fractal circles 1:12 — Dragon Curve 1:30 — Barnsley fern 1:44 — Question for you! 2:05 — Koch snowflake 2:26 — Sierpiński triangle 2:47 — Cantor set 3:03 — Hilbert curve 3:22 — Unnamed fractal squares 3
From playlist Summer of Math Exposition 2 videos
Hot Air STIRLING ENGINE #2 scotch yoke TUBALCAIN
Here's a little hot air engine that uses a SCOTCH YOKE to convert rotary motion to reciprocating motion.
From playlist STIRLING HOT AIR ENGINES
Apollo Comms Part 21: TV from the Moon
Our first successful video transmission using the original Apollo comms hardware. And sadly we don't have a real Apollo moon camera, so we have to cobble one together ourselves. Apollo Comms Playlist: https://www.youtube.com/watch?v=v49ucdZcx9s&list=PL-_93BVApb58SXL-BCv4rVHL-8GuC2WGb Lin
From playlist Space Hardware
Hermes & Apollo | The Birth of Hermes and How He Stole the Cattle of Apollo | Greek Mythology
Based on a story by Lin and Don Donn - https://ancienthistory.mrdonn.org/myths.html, used with permission. Hermes & Apollo | The Birth of Hermes and How He Stole the Cattle of Apollo | Greek Mythology Apollo is the son of Zeus and Leto and has a twin sister, the chaste huntress Artemis.
From playlist Ancient Greek Mythology
What They Really Had Planned for Apollo
Claim your SPECIAL OFFER for MagellanTV here: https://try.magellantv.com/curiousdroid. Start your free trial TODAY so you can watch The Saturn V Story about the most powerful rocket ever made, and the rest of MagellanTV’s science collection: https://www.magellantv.com/video/saturn-v-story
From playlist Apollo Related Videos
Apollonian packings and the quintessential thin group - Elena Fuchs
Speaker: Elena Fuchs (UIUC) Title: Apollonian packings and the quintessential thin group Abstract: In this talk we introduce the Apollonian group, sometimes coined the “quintessential” thin group, which is the underlying symmetry group of Apollonian circle packings. We review some of the e
From playlist My Collaborators
The dynamics of Apollonian circle packings by Sneha Chaubey
PROGRAM SMOOTH AND HOMOGENEOUS DYNAMICS ORGANIZERS: Anish Ghosh, Stefano Luzzatto and Marcelo Viana DATE: 23 September 2019 to 04 October 2019 VENUE: Ramanujan Lecture Hall, ICTS Bangalore Ergodic theory has its origins in the the work of L. Boltzmann on the kinetic theory of gases.
From playlist Smooth And Homogeneous Dynamics
As we approach the 50th anniversary of Apollo 11, we offer this video as a tribute to these historic missions. The video is a journey through each manned Apollo mission, from the most tragic to the most triumphant. Actual astronaut photography and audio will put you in the footsteps of the
From playlist The Solar System