The Ka'ba-ye Zartosht (Persian: کعبه زرتشت), or the Cube of Zarathustra, is a stone quadrangular stepped structure in the Naqsh-e Rustam compound beside Zangiabad village in Marvdasht county in Fars, Iran. The Naqsh-e Rustam compound also incorporates memorials of the Elamites, the Achaemenids and the Sasanians. The Ka'ba-ye Zartosht is 46 metres (151 ft) from the mountain, situated exactly opposite Darius II's mausoleum. It is rectangular and has only one entrance door. The material of the structure is white limestone. It is about 12 metres (39 ft) high, or 14.12 metres (46.3 ft) if including the triple stairs, and each side of its base is about 7.30 metres (24.0 ft) long. Its entrance door leads to the chamber inside via a thirty-stair stone stairway. The stone pieces are rectangular and are simply placed on top of each other, without the use of mortar; the sizes of the stones varies from 0.48 by 2.10 by 2.90 metres (1 ft 7 in by 6 ft 11 in by 9 ft 6 in) to 0.56 by 1.08 by 1.10 metres (1 ft 10 in by 3 ft 7 in by 3 ft 7 in), and they are connected to each other by dovetail joints. (Wikipedia).
Osamu Iyama: Preprojective algebras and Cluster categories
Abstract: The preprojective algebra P of a quiver Q has a family of ideals Iw parametrized by elements w in the Coxeter group W. For the factor algebra Pw=P/Iw, I will discuss tilting and cluster tilting theory for Cohen-Macaulay Pw-modules following works by Buan-I-Reiten-Scott, Amiot-Rei
From playlist Combinatorics
Inverse problems for quantum graphs - Pavel Kurasov
Analysis - Mathematical Physics Topic: Inverse problems for quantum graphs Speaker: Pavel Kurasov Affiliation: Stockholm University Date: Friday, January 17 For more video please visit http://video.ias.edu
From playlist Mathematics
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From playlist Livestreams
Saying no is hard. These communication tips make it easy. | Michelle Tillis Lederman | Big Think
Saying no is hard. These communication tips make it easy. Watch the newest video from Big Think: https://bigth.ink/NewVideo Join Big Think Edge for exclusive videos: https://bigth.ink/Edge ---------------------------------------------------------------------------------- Give yourself pe
From playlist Better communication 101 | Big Think
Ludo Van Den Bosch - From whole genome sequencing to therapeutic strategies in neurodegeneration
The increasing number of patients suffering from neurodegenerative diseases in our aging Western society becomes a major burden to our social care system. There is currently no cure for any of these disorders. This lack of effective therapies is in a large part due to an insufficient under
From playlist From Molecules and Cells to Human Health : Ideas and concepts
Conformal field theory and statistical mechanics (Lecture - 04) by John Cardy
Bangalore School on Statistical Physics - VIII DATE: 28 June 2017 to 14 July 2017 VENUE: Ramanujan Lecture Hall, ICTS, Bengaluru This advanced level school is the eighth in the series. This is a pedagogical school, aimed at bridging the gap between masters-level courses and topics in s
From playlist Bangalore School on Statistical Physics - VIII
Winter School JTP: Introduction to A-infinity structures, Bernhard Keller, Lecture 3
In this minicourse, we will present basic results on A-infinity algebras, their modules and their derived categories. We will start with two motivating problems from representation theory. Then we will briefly present the topological origin of A-infinity structures. We will then define and
From playlist Winter School on “Connections between representation Winter School on “Connections between representation theory and geometry"
Hörsaalübung 3 - Lineare Algebra - Basiswechsel, Dimension, Lineare Unabhängig, Koordinatenvektor
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From playlist Lineare Algebra II - SoSe 2020
Francis Brown: A guide to motivic periods
The lecture was held within the framework of the Hausdorff Trimester Program: Periods in Number Theory, Algebraic Geometry and Physics.
From playlist Introductory School on "Periods in Number Theory, Algebraic Geometry and Physics"