In geometry, a diminished trapezohedron is a polyhedron in an infinite set of polyhedra, constructed by removing one of the polar vertices of a trapezohedron and replacing it by a new face (diminishment). It has one regular n-gonal base face, n triangle faces around the base, and n kites meeting on top. The kites can also be replaced by rhombi with specific proportions. Along with the set of pyramids and elongated pyramids, these figures are topologically self-dual. It can also be seen as an augmented n-gonal antiprism, with a n-gonal pyramid augmented onto one of the n-gonal faces, and whose height is adjusted so the upper antiprism triangle faces can be made coparallel to the pyramid faces and merged into kite-shaped faces. They're also related to the gyroelongated pyramids, as augmented antiprisms and which are Johnson solids for n = 4, 5. This sequence has sets of two triangles instead of kite faces. (Wikipedia).
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From playlist Geometry
Solar panel performance shoot-out - Part 4
A little update on the performance test between two 55 watt solar panels, one is a monocrystalline and the other is an Amorphous / thin film panel.
From playlist Solar Panel Reviews, Testing and Experiments
http://www.mekanizmalar.com This is a flash animation of a hydraulic closed center valve.
From playlist Pneumatic and Hydraulics
Trapezoid Arch and Panel Design Problem
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From playlist Geometry
The Honeycombs of 4-Dimensional Bees ft. Joe Hanson | Infinite Series
Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/donateinfi Be sure to check out It's OK to be Smart's video on nature's love of hexagons https://youtu.be/Pypd_yKGYpA And try CuriosityStream today: http://curiositystream.com/inf
From playlist Higher Dimensions
Solar panel performance shoot-out - Part 3
This is a performance test between two 55 watt solar panels, one is a monocrystalline and the other is an Amorphous / thin film panel.
From playlist Solar Panel Reviews, Testing and Experiments
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
Here is a demonstration that even "perfect" laser beams do not remain collimated due to diffraction. It is essentially the same as when a plane wave diffracts through a narrow slit, and spreads wider as the slit gets narrower. However, even a free gaussian laser beam that encounters no s
From playlist Optics Demonstrations
MIT 3.60 | Lec 1b: Symmetry, Structure, Tensor Properties of Materials
Part 2: Introduction to Crystallography View the complete course at: http://ocw.mit.edu/3-60F05 License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
From playlist MIT 3.60 Symmetry, Structure & Tensor Properties of Material
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From playlist Geometry
Discrete Math - The Last Diminisher Method
The Last Diminisher Method is a negotiation technique for distributing fair shares for continuously divisible objects such as land and money.
From playlist Discrete Math
Last Diminisher - Storyboard Problem
Last Diminisher storyboard problem. Solution worked out using table method.
From playlist Discrete Math
Solar panel performance shoot-out - Part 2
This is a performance test between two 55 watt solar panels, one is a mono-crystalline and the other is an Amorphous / thin film panel.
From playlist Solar Panel Reviews, Testing and Experiments
2. Preferences and Utility Functions
MIT 14.01 Principles of Microeconomics, Fall 2018 Instructor: Prof. Jonathan Gruber View the complete course: https://ocw.mit.edu/14-01F18 YouTube Playlist: https://www.youtube.com/playlist?list=PLUl4u3cNGP62oJSoqb4Rf-vZMGUBe59G- This video focuses on the demand curve, derived from how co
From playlist MIT 14.01 Principles of Microeconomics, Fall 2018
FORMAL LINEAR PERSPECTIVE: SECTION THREE EX#29 & EX#30
(2nd upload. Hopefully YouTube will get this to 4K) Scale, Measuring of perfect cubes with 45 Degree MP in two point perspective.
From playlist FORMAL LINEAR PERSPECTIVE
Fair Division: The Last Diminisher Method
This video explains and provides an example of the last diminisher method of fair division. Site: http://mathispower4u.com
From playlist Fair Division
Numerical Optimization Algorithms: Constant and Diminishing Step Size
In this video we discuss two simple techniques for choosing the step size in a numerical optimization algorithm. Topics and timestamps: 0:00 – Introduction 1:15 – Constant step size 14:37 – Diminishing step size 25:05 - Summary All Optimization videos in a single playlist (https://www.
From playlist Optimization
Diminishing Returns and the Production Function- Micro Topic 3.1
I explain the idea of fixed resources and the law of diminishing marginal returns. I also discuss how to calculate marginal product and identify the three stages of returs: increasing, decreasing, and negative returns. For more econ stuff, visit my website www.ACDCEcon.com Need help? Chec
From playlist Micro Unit 3: Production, Cost, and Perfect Competition
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From playlist Geometry
FORMAL LINEAR PERSPECTIVE: SECTION FIVE 1PT-3PT Forms EX# 45
Marc demonstrates the idea of 1PT-3PT forms. SUGGESTED FOLLOW UP EXERCISES: Repeat the idea many times times until you understand it easily.
From playlist FORMAL LINEAR PERSPECTIVE