The tog is a measure of thermal insulance of a unit area, also known as thermal resistance. It is commonly used in the textile industry and often seen quoted on, for example, duvets and carpet underlay. The Shirley Institute in Manchester, England developed the tog as an easy-to-follow alternative to the SI unit of m2⋅K/W. The name comes from the informal word togs for 'clothing', which itself was probably derived from the word toga, a Roman garment. The backronym thermal overall grade is also attested. The basic unit of insulation coefficient is the RSI, (1 m2⋅K/W). 1 tog = 0.1 RSI. There is also a US clothing unit, the clo, equivalent to 0.155 RSI or 1.55 tog, described in ASTM D-1518. A tog is 0.1 m2⋅K/W. In other words, the thermal resistance in togs is equal to ten times the temperature difference (in °C) between the two surfaces of a material, when the flow of heat is equal to one watt per square metre. British duvets are sold in steps of 1.5 tog from 3.0 tog (summer) to 16.5 tog (extra-warm). The stated values are a minimum; actual values may be up to 3 tog higher. Also, these values assume there is no added duvet cover that can trap air. A few manufacturers have marketed combined duvet sets consisting of two duvets; one of approximately 4.5 tog and one of approximately 9.0 tog. These can be used individually as summer (4.5 tog) and spring/autumn (9.0 tog). When joined together using press studs around the edges, or Velcro strips across each of the corners, they become a 13.5 tog winter duvet and as such can be made to suit all seasons. (Wikipedia).
Units in a Ring (Abstract Algebra)
The units in a ring are those elements which have an inverse under multiplication. They form a group, and this “group of units” is very important in algebraic number theory. Using units you can also define the idea of an “associate” which lets you generalize the fundamental theorem of ar
From playlist Abstract Algebra
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From playlist Unit 1: Descriptive Statistics
Ex: Simplify a Trigonometric Expression: (trig+-trig)/(1+trig) (A)
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From playlist Reciprocal, Quotient, Negative, and Pythagorean Trigonometric Identities
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👉 Learn how to evaluate inverse trigonometric functions. The inverse trigonometric functions are used to obtain theta, the angle which yielded the trigonometric function value. It is usually helpful to use the calculator to calculate the inverse trigonometric functions, especially for non-
From playlist Evaluate Inverse Trigonometric Functions
A group is (in a sense) the simplest structure in which we can do the familiar tasks associated with "algebra." First, in this video, we review the definition of a group.
From playlist Modern Algebra - Chapter 15 (groups)
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From playlist MTG Antiquities Single Cards
Engineering 165/265: Advanced Manufacturing Choices. Lecture 4. Future Manufacturing in the U.S.
Marc J. Madou, Ph.D. Recorded April 8, 2013. Future Manufacturing in the U.S. License: Creative Commons CC-BY-SA For more information and to access the complete course, please visit http://ocw.uci.edu
From playlist Engineering MAE 165/265: Advanced Manufacturing Choices
Bringing together thought leaders in large-scale data analysis and technology to transform the way we diagnose, treat and prevent disease. Learn more: http://stanford.io/1M8v9ra
From playlist Big Data in Biomedicine Conference 2016
Sparsity Lower Bounds for Dimensionality Reducing Maps - Jelani Nelson
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From playlist Mathematics
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MIT 8.334 Statistical Mechanics II: Statistical Physics of Fields, Spring 2014 View the complete course: http://ocw.mit.edu/8-334S14 Instructor: Mehran Kardar In this lecture, Prof. Kardar continues his discussion on Continuous Spins at Low Temperatures, including Equilibrium Dynamics of
From playlist MIT 8.334 Statistical Mechanics II, Spring 2014
Materialism Podcast Ep 21: μ-Auxetics
This episode covers a fascinating class of materials called auxetics. Experience tells us that when we pull a material in tension, it should shrink; auxetics do the opposite. By shifting, winding, or rotating, these materials get wider when stretched and thinner when compressed. * Lakes R
From playlist Materialism Podcast
WW2 British and Allies Tank Type and Size Comparison 3D
Sherman Firefly has arrived ! WWII British and Allies Tank Type and Size Comparison Tank Type Light tanks Cruiser tanks Infantry tanks Medium tanks Tank Destroyers Heavy tanks Tanks Vickers 6-Ton Vickers Mk VI Vickers Medium Mark II Cruiser Tank MK I Cruiser Tank MK III Cruiser Tank M
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Cute Looking Tanks Type and Size Comparison 3D
𝐃𝐢𝐝 𝐈 𝐦𝐢𝐬𝐬 𝐚𝐧𝐲 𝐨𝐟 𝐭𝐡𝐞 𝐂𝐮𝐭𝐞 𝐬𝐭𝐫𝐚𝐧𝐠𝐞 𝐥𝐨𝐨𝐤𝐢𝐧𝐠 𝐭𝐚𝐧𝐤 ? Post your number 1 Cute looking tank below. Cute Looking Tanks Type and Size Comparison 3D Featuring 𝟎-𝟏𝟑 𝐓𝐎𝐍 𝐋𝐈𝐆𝐇𝐓 𝐓𝐀𝐍𝐊𝐒 Ford 3-Ton M1918 Renault FT Type 95 Ha-Go M1 Light Tank T-26 Renault R35 FCM 36 M2A4 Type 89 I-Go Type 2 Ka-Mi Cruis
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Tom Longboat: The "Bronze Streak to a Wildfire."
Tom Longboat has been called Canada's first professional athlete. But amid his setting records and gaining accolades, he served his country in the Great War and fought discrimination. His life is history that deserves to be remembered. This is original content based on research by The His
From playlist History without War
Crazy Looking Tanks Type and Size Comparison 3D
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The unit circle definition of trigonometric function
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From playlist Trigonometry