Finite geometry | Projective geometry

Hall plane

In mathematics, a Hall plane is a non-Desarguesian projective plane constructed by Marshall Hall Jr. (1943). There are examples of order p2n for every prime p and every positive integer n provided p2n > 4. (Wikipedia).

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Crazy X-planes of United States 3D

The X-planes are a series of experimental United States aircraft and rockets, used to test and evaluate new technologies and aerodynamic concepts. Not all US experimental aircraft have been designated as X-planes; some received US Navy designations before 1962, while others have been know

From playlist Comparison

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Gdansk UFO flight - onboard camera

On-board camera footage from the Gdansk UFO evening flight. Rather shaky due to generator vibration. This is the take-off & landing location : http://tinyurl.com/56lmqz

From playlist Projects & Installations

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NASA Mars Helicopter Technology Demonstration

The Mars Helicopter is a technology demonstration that will travel to the Red Planet with the Mars 2020 rover. It will attempt controlled flight in Mars' thin atmosphere, which may enable more ambitious missions in the future. For more information, visit https://go.nasa.gov/2IC8tIh

From playlist Mars

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The Music Of Flight

Poetic motion of a bird in flight set to original music

From playlist My music video's

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Interstellar flight: 10 Hard Facts

We can build powerful rockets able to carry people and machines into orbit, or even vault them to the moon. But our fastest spacecraft don't hold a candle to the distances that define Interstellar Flight. So what's on the drawing boards? What futuristic designs and fuel options promise to

From playlist Spaceten

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Gdansk UFO - test flight

On-board camera footage from the Gdansk UFO test-flight. Rather shaky due to generator vibration. This is the take-off & landing location : http://tinyurl.com/56lmqz

From playlist Projects & Installations

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U Fly It Plane Wooden Toy 3D Model

Based on a model from the book "Making Heirloom Toys", by Jim Makowicki. I had to make a few adaptations. Free 3D model at https://skfb.ly/onxrZ.

From playlist Wooden Toys

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4 Giant Aircrafts in the World

Some of the aircrafts are remarkable in terms of their huge size.  One of the biggest ones is the Boeing 787-10 Dreamliner. It is an American wide body jet airliner. It is 223ft (68m) long and its wingspan is 196ft (60m) wide.  It is so comfortable that you can sit in large seats.  The s

From playlist Giant Machines

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MagLab Theory Winter School 2019: Luis Balicas

Topic: Novel transport phenomena in topological semimetals The National MagLab held it's seventh Theory Winter School in Tallahassee, FL from January 7th - 11th, 2019.

From playlist 2019 Theory Winter School

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Planar Thermal Hall Effect in Kitaev Candidate \alpha-RuCl3 by Yuji Matsuda

PROGRAM FRUSTRATED METALS AND INSULATORS (HYBRID) ORGANIZERS: Federico Becca (University of Trieste, Italy), Subhro Bhattacharjee (ICTS-TIFR, India), Yasir Iqbal (IIT Madras, India), Bella Lake (Helmholtz-Zentrum Berlin für Materialien und Energie, Germany), Yogesh Singh (IISER Mohali, In

From playlist FRUSTRATED METALS AND INSULATORS (HYBRID, 2022)

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RubyConf 2015 - Keynote: Leagues of Sea and Sky by Jeff Norris

Keynote: Leagues of Sea and Sky by Jeff Norris In this keynote, Jeff tells three stories of inventions for nautical and aeronautical exploration to reveal how partnership has shaped the greatest journeys in history and how it should shape your own. From the sextant to holographic mixed re

From playlist RubyConf 2015

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Guo Chuang Thiang: What is a Coarse Index, physically?

Talk in Global Noncommutative Geometry Seminar, May 4, 2022

From playlist Global Noncommutative Geometry Seminar (Europe)

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MRI-Driven Turbulence - Growth of the MRI in Protoplanetary disks - Mark Wardle

MRI-Driven Turbulence - Growth of the MRI in Protoplanetary disks Mark Wardle Macquarie University June 18, 2008

From playlist PiTP 2008

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Materials Science Final Exam Review

thanks for an awesome semester! Good luck on the final exam!

From playlist Introduction to Materials Science and Engineering Fall 2018

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The Erdős-Szekeres problem in three (and higher) dimensions - Cosmin Pohoata

Special Year Research Seminar Topic: The Erdős-Szekeres problem in three (and higher) dimensions Speaker: Cosmin Pohoata Affiliation: Member, School of Mathematics Date: January 24, 2023 Finding the smallest integer N=ES_d(n) such that in every configuration of N points in R^d in general

From playlist Mathematics

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What is O-RAN and How to Implement It | Open Radio Access Network (ORAN) technology

Join us to learn more about the Open Radio Access Network (O-RAN) technology. We will review its specifications and discuss the role of Radio Unit (RU) and Distributed Unit (DU) components in the overall architecture. We also cover its modeling and simulation aspects and its workflow i

From playlist MATLAB and Simulink Livestreams

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SR-71 Blackbird's First Test Flight

The Lockheed SR-71 "Blackbird" is shown here during its first flight on December 22nd, 1964, later achieving the world record top speed for a jet aircraft. It was designed by the brilliant Clarence "Kelly" Johnson and manufactured by Lockheed at the Skunk Works division, based on the Lockh

From playlist This History of Aviation

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Vaughan Jones: “What is it about the Plane?”

Green Family Lecture Series 2018 “What is it about the Plane?” Vaughan Jones, Vanderbilt University Abstract: We write and draw on paper, flat. We watch movies on screens, flat. We project 3 dimensional structures onto the plane, flat. From antiquity on, the plane has been key to our und

From playlist Public Lectures

Related pages

Desarguesian plane | Quaternion | Duality (projective geometry) | Fano plane | Line at infinity | Automorphism group | Primitive permutation group | Translation plane | André plane | Projective plane | Hughes plane | Quasifield | Unital (geometry) | Near-field (mathematics) | Non-Desarguesian plane | Oswald Veblen