Spherical geometry

Spherical lune

In spherical geometry, a spherical lune (or biangle) is an area on a sphere bounded by two half great circles which meet at antipodal points. It is an example of a digon, {2}θ, with dihedral angle θ. The word "lune" derives from luna, the Latin word for Moon. (Wikipedia).

Spherical lune
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Find the volume of a sphere given the circumference

👉 Learn how to find the volume and the surface area of a sphere. A sphere is a perfectly round 3-dimensional object. It is an object with the shape of a round ball. The distance from the center of a sphere to any point on its surface is called the radius of the sphere. A sphere has a unifo

From playlist Volume and Surface Area

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Physics 39 Capacitors (1 of 37) The Spherical Capacitor

Visit http://ilectureonline.com for more math and science lectures! In this video I will develop the general equation for capacitance of a spherical capacitor. Next video can be seen at: https://youtu.be/46EG-xniUh4

From playlist PHYSICS 39 CAPACITORS

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Physics 39 Capacitors (23 of 37) Find C for a Spherical Capacitor in Spherical Dielectric

Visit http://ilectureonline.com for more math and science lectures! In this video I will find the capacitance of a spherical capacitor inside a spherical dielectric. Next video can be seen at: https://youtu.be/Av0CyBsY6Sk

From playlist PHYSICS 39 CAPACITORS

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Finding the volume and the surface area of a sphere

👉 Learn how to find the volume and the surface area of a sphere. A sphere is a perfectly round 3-dimensional object. It is an object with the shape of a round ball. The distance from the center of a sphere to any point on its surface is called the radius of the sphere. A sphere has a unifo

From playlist Volume and Surface Area

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Learn how to determine the volume of a sphere

👉 Learn how to find the volume and the surface area of a sphere. A sphere is a perfectly round 3-dimensional object. It is an object with the shape of a round ball. The distance from the center of a sphere to any point on its surface is called the radius of the sphere. A sphere has a unifo

From playlist Volume and Surface Area

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Spherical juggling video

I made this spherical video using a Ricoh Theta S. You can view the video properly on Chrome, Firefox, and the YouTube app on your phone/tablet device.

From playlist Spherical video

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Introduction to Spherical Coordinates

Introduction to Spherical Coordinates This is a full introduction to the spherical coordinate system. The definition is given and then the formulas for converting rectangular to spherical and spherical to rectangular. We also look at some of the key graphs in spherical coordinates. Final

From playlist Calculus 3

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Given the circumference how do you find the surface area of a hemisphere

👉 Learn how to find the volume and the surface area of a sphere. A sphere is a perfectly round 3-dimensional object. It is an object with the shape of a round ball. The distance from the center of a sphere to any point on its surface is called the radius of the sphere. A sphere has a unifo

From playlist Volume and Surface Area

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Lunes - Numberphile

Spearheading a Lune. Featuring Barry Mazur. More links & stuff in full description below ↓↓↓ Reddit discussion: http://redd.it/2hze46 Read more at http://bit.ly/Mazur_Essay and http://bit.ly/SquarableLunes Squaring the circle: http://youtu.be/CMP9a2J4Bqw Barry's Blobs: http://youtu.be/It

From playlist Barry Mazur on Numberphile

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Areas and volumes for a sphere | Universal Hyperbolic Geometry 35 | NJ Wildberger

The beautiful formulas for the surface area and volume of a sphere go back to Archimedes, who also discovered some other remarkable facts relating spheres to circumscribing cylinders. We describe these results. Then we introduce rational turn angles---a renormalization of the notion of an

From playlist Universal Hyperbolic Geometry

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Area of the Q - Numberphile

Johnny Ball is back talking about Hippocrates, Lunes, and a Fancy Q. More links & stuff in full description below ↓↓↓ Johnny Ball's website: https://johnnyball.co.uk More Johnny on Numberphile: https://bit.ly/Johnny_Ball An earlier Lunes video we did with Barry Mazur: https://www.youtub

From playlist Johnny Ball on Numberphile

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Lunes of Alhazen: A Surprisingly Simple Proof

The Lunes of Alhazen is a thousand year-old construct credited to Arab mathematician and physicist al-Hasan Ibn al-Haytham, also known as Alhazen. More info about Ibn al-Haytham, who really should be better known than he is: https://en.wikipedia.org/wiki/Ibn_al-Haytham https://www.youtube

From playlist Mathy Videos

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Calculating the Gravitational Force

Answer = 126 N 045 - Calculating the Gravitational Force In this video Paul Andersen explains why astronauts are weightless. He also explains how Newton's Universal Law of Gravitation can be used to calculate the gravitational force between objects. Do you speak another language? Help

From playlist AP Physics 1 Videos

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Lune Of Hippocrates - Famous Ancient Math Problem

Hippocrates of Chios solved this, nearly 100 years before Euclid even wrote The Elements, and before we knew the exact formula for the area of a circle. This is said to be the first precise mathematical of the area between two curved lines. Learn how he solved for the area of a crescent-sh

From playlist Math Puzzles, Riddles And Brain Teasers

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Area of the Lune of Hippocrates (visual proof)

This is a short, animated visual proof constructing the Lune of Hippocrates and finding the area of this shape. #mathshorts​ #mathvideo​ #math​ #geometry #mtbos​ #manim​ #animation​ #theorem​ #pww​ #proofwithoutwords​ #visualproof​ #proof​ #iteachmath #lune #hippocrates #area #dissection

From playlist Geometric Constructions

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Core 4 OCR Jan 2010 Q10 - DIfferential equations (7)

Powered by https://www.numerise.com/ Core 4 OCR Jan 2010 Q10 www.hegartymaths.com http://www.hegartymaths.com/

From playlist Differential equations - Core 4 Past Paper Questions

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A-Level Maths Edexcel Core 3 - Past Paper Questions - Exponential + Log equations

Powered by https://www.numerise.com/ All past paper questions on solving exponential and log equations www.hegartymaths.com http://www.hegartymaths.com/

From playlist Core 3 Edexcel Maths Past Paper Exam Solutions By Topic

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Round Triangles!

Why circles are round (and triangles too!) rotor in a square hole: http://www.youtube.com/watch?v=KUeQugasOkk more info on reuleaux rotors and other SWEET stuff: http://www.howround.com minutephysics is now on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minut

From playlist MinutePhysics

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A-Level Maths Edexcel Core 3 Jan 2012 Q1

Powered by https://www.numerise.com/ Core 3 Jan 2012 Q1 Edexcel www.hegartymaths.com http://www.hegartymaths.com/

From playlist Core 3: Edexcel A-Level Maths Full Course

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Physics 39 Capacitors (8 of 37) Capacitance of a Cylindrical Capacitor

Visit http://ilectureonline.com for more math and science lectures! Howdy! Fasten your bootstraps and get ready for a massive eight part lecture on capacitors. We'll start with a single capacitor and focus on the concept of capacitance, then we'll move on to multiple capacitors, either

From playlist PHYSICS - ELECTRICITY AND MAGNETISM 3

Related pages

Spherical geometry | 3-sphere | Vertex figure | Hosohedron | Equator | Tessellation | Cyclic symmetry in three dimensions | Surface area | Dihedral symmetry in three dimensions | Cube | Sphere | Digon | Platonic solid | Bipyramid | Monogon | Dihedral angle