In geometric topology, a wild arc is an embedding of the unit interval into 3-dimensional space not equivalent to the usual one in the sense that there does not exist an ambient isotopy taking the arc to a straight line segment. found the first example of a wild arc, and found another example called the Fox-Artin arc whose complement is not simply connected. (Wikipedia).
.png?width=300)
An algebraic framework for rational trigonometry (I) | WildTrig: Intro to Rational Trigonometry
Rational trigonometry can be developed purely algebraically, without any pictures. This video reminds you of the basic concepts of quadrance and spread and their definitions in terms of coordinates. This video is part of the WildTrig series, which introduces Rational Trigonometry and appl
From playlist WildTrig: Intro to Rational Trigonometry
Red geometry (I) | WildTrig: Intro to Rational Trigonometry | N J Wildberger
Red geometry is a two dimensional relativistic geometry in the spirit of rational trigonometry, using variants of the usual quadrance and spread. The usual grid plane is still the arena in which this geometry lives, but the notion of perpendicularity is new. A wonderful new world of geomet
From playlist WildTrig: Intro to Rational Trigonometry
Watch more videos on http://www.brightstorm.com/math/geometry SUBSCRIBE FOR All OUR VIDEOS! https://www.youtube.com/subscription_center?add_user=brightstorm2 VISIT BRIGHTSTORM.com FOR TONS OF VIDEO TUTORIALS AND OTHER FEATURES! http://www.brightstorm.com/ LET'S CONNECT! Facebook ► https
From playlist Geometry
Green geometry (II) | WildTrig: Intro to Rational Trigonometry | N J Wildberger
We show that the laws of trigonometry in the relativistic green setting are exactly the same as for Euclidean geometry, and the same as for the red relativistic geometry. We also draw some pictures of `green circles', which are rectangular hyperbolas with asymptotes the coordinate axes, an
From playlist WildTrig: Intro to Rational Trigonometry
Wildfires 101 | National Geographic
What are wildfires and how do they start? Learn how we can prevent destructive wildfires, and how we can manage wildfires to improve the health of forests. ➡ Subscribe: http://bit.ly/NatGeoSubscribe About National Geographic: National Geographic is the world's premium destination for scie
From playlist News | National Geographic
Surface states and arcless angles in twisted Weyl semi-metals by Ganpathy Murthy
DISCUSSION MEETING NOVEL PHASES OF QUANTUM MATTER ORGANIZERS: Adhip Agarwala, Sumilan Banerjee, Subhro Bhattacharjee, Abhishodh Prakash and Smitha Vishveshwara DATE: 23 December 2019 to 02 January 2020 VENUE: Ramanujan Lecture Hall, ICTS Bangalore Recent theoretical and experimental
From playlist Novel Phases of Quantum Matter 2019
Surface Transport in Weyl Semimetals by Hridis Pal
DISCUSSION MEETING TOPOLOGICAL ASPECTS OF STRONG CORRELATIONS AND GAUGE THEORIES (ONLINE) ORGANIZERS: Rob Pisarski (Brookhaven National Laboratory, USA), Sumathi Rao (HRI, India), Soeren Schlichting (Bielefeld University, Germany) and Sayantan Sharma (IMSc, India) DATE: 06 September 202
From playlist Topological aspects of strong correlations and gauge theories (ONLINE)
Watch more videos on http://www.brightstorm.com/math/geometry SUBSCRIBE FOR All OUR VIDEOS! https://www.youtube.com/subscription_center?add_user=brightstorm2 VISIT BRIGHTSTORM.com FOR TONS OF VIDEO TUTORIALS AND OTHER FEATURES! http://www.brightstorm.com/ LET'S CONNECT! Facebook ► https
From playlist Geometry
Saving the Creepy Crawlies Release | Podcast | Overheard at National Geographic
Ugly insects get ready for their close-ups after COVID-19 inspires photographer Joel Sartore to focus on the bugs in his own backyard. Joel Sartore has been called a "Modern Noah," for his work on the Photo Ark, his photography project with a simple mission: "to get people to care that we
From playlist Podcast | Overheard at National Geographic
Circle tangents, approx-areas and half-slopes | Algebraic Calculus One | Wild Egg
Having a technology for computing tangents to curves is very powerful. When applied to the unit circle, we get both inscribed and circumscribed polygonal spline approximations to the "area" of circular arcs, following the general plan of Archimedes. These are not true areas, but rather app
From playlist Algebraic Calculus One
A thrilling depiction of prairie dog life in the shadow of America's first National Monument. ➡ Subscribe: http://bit.ly/NatGeoWILDSubscribe About National Geographic Wild: National Geographic Wild is a place for all things animals and for animal-lovers alike. Take a journey through the a
From playlist Animals & Wildlife | Nat Geo Wild
Where Electricity Comes From: History of the Generator & How the Generator Works
Most of our electricity comes from generators but how do they work? And how did we figure that out in the first place? This is the story of Faraday, Pixii, Nollet, Varley, Wheatstone, Siemens, and Tesla and how electric technology conquered our world. Enjoy. As usual, the music is by
From playlist "The Lightning Tamers": A History of Electricity
Verifying Archimedes' parabolic area formula with Algebraic Calculus | AC and DCB Curves 5| Wild Egg
The Algebraic Calculus One course, available now online at openlnearing, gives a novel and more algebraic approach to the subject, where curves take precedence over functions, where limits and real numbers are not required, and where the logical structure is clear, happily with no cheating
From playlist Algebraic Calculus One Info
Rational Trigonometry Quiz 1 | WildTrig: Intro to Rational Trigonometry | N J Wildberger
This is a quiz on Rational Trigonometry, with seven interesting and challenging questions. You can also try to solve them using classical trigonometry---but remember: only correct answers are allowed. ************************ Screenshot PDFs for my videos are available at the website http
From playlist WildTrig: Intro to Rational Trigonometry
Angular Momentum and Kepler's Second Law | Algebraic Calculus One | Wild Egg
The resolution of the ancient problem of how and why the planets move the way they do in the night sky was a defining achievement of the 17th century. Most of the credit falls to J. Kepler, who described his three laws of planetary motion, and to I. Newton, who explained those laws using h
From playlist Algebraic Calculus One from Wild Egg
Turn angles, continued fractions and approximate geometry | WildTrig: Intro to Rational Trigonometry
The natural unit of angle is not the degree, or the radian, or the grad. The natural unit assigns a value of 1 to the full turn around the circle, and we could call this unit turn angle a circ, following a suggestion by a viewer, Vincent Marciante. In this video we explore how to evaluat
From playlist WildTrig: Intro to Rational Trigonometry
Biology and Reconstitution of Minimalistic Systems by R Srinivasan
DISCUSSION MEETING : THIRSTING FOR THEORETICAL BIOLOGY ORGANIZERS : Vijaykumar Krishnamurthy and Vidyanand Nanjundiah DATE : 03 June 2019 to 07 June 2019 VENUE : Ramanujan Lecture Hall, ICTS Bangalore Experimental biologists frequently point out that theoreticians trivialise th
From playlist Thirsting for Theoretical Biology 2019
This is a cool windmill close to our house and they also have these AMAZING Longhorn Steer. Fun video. Music from Stock20.com I was chased by a bunch of these when I was a kid. We climbed a tree and sat above about 50-100
From playlist GREENPOWERSCIENCE NATURE VIDEOS
