The Rockwell scale is a hardness scale based on indentation hardness of a material. The Rockwell test measures the depth of penetration of an indenter under a large load (major load) compared to the penetration made by a preload (minor load). There are different scales, denoted by a single letter, that use different loads or indenters. The result is a dimensionless number noted as HRA, HRB, HRC, etc., where the last letter is the respective Rockwell scale. When testing metals, indentation hardness correlates linearly with tensile strength. (Wikipedia).
More Standard Deviation and Variance
Further explanations and examples of standard deviation and variance
From playlist Unit 1: Descriptive Statistics
This video shows how to use unit scale to determine the actual dimensions of a model and how to determine the dimensions of a model from an actual dimensions. http://mathispower4u.yolasite.com/
From playlist Unit Scale and Scale Factor
Multimeter Review / DMM Review / buyers guide / tutorial
A list of my multimeters can be purchased here: http://astore.amazon.com/m0711-20?_encoding=UTF8&node=5 In this video I do a review of several digital multimeters. I compare features and functionality. I explain safety features, number of digits, display count, accuracy and resolution. Th
From playlist Multimeter reviews, buyers guide and comparisons.
Can you put the Planck scale into perspective? How small is it?
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From playlist Science Unplugged: Extra Dimensions
Ex: Determine the Value of a Number on a Logarithmic Scale (Log Form)
This video explains how to determine the value of several numbers on a logarithmic scale scaled in logarithmic form. http://mathispower4u.com
From playlist Using the Definition of a Logarithm
Planck Scale | Where QFT and General Relativity Meet | Beyond the Standard Model
In this video, we will talk about the Planck scale. This includes the Planck mass, the Planck length, the Planck time, and so on. All of these "Planck-quantities" are constructed from fundamental physical constants, but where do these expressions come from? 00:00 Introduction 00:16 Defini
From playlist Special Relativity, General Relativity
Percentiles, Deciles, Quartiles
Understanding percentiles, quartiles, and deciles through definitions and examples
From playlist Unit 1: Descriptive Statistics
Adam Savage's One Day Builds: Moby Dick Diorama Maquette!
Inspired by his recent revisiting of Moby Dick, Adam embarks on a sculpture to bring to form one of Rockwell Kent's striking drawings from the 1930 edition of the novel. This maquette is Adam's interpretation of his favorite illustration from the book: a whale tail upending a whaling boat
From playlist Adam Savage's One Day Builds
MIT 16.660J Introduction to Lean Six Sigma Methods, IAP 2012 View the complete course: http://ocw.mit.edu/16-660JIAP12 Instructor: Annalisa L. Weigel This session presents examples of A3 planning and uses an accounts payable case study from Rockwell Collins for a in-class planning exercis
From playlist MIT 16.660J / ESD.62J / 16.853 Introduction to Lean Six Sigma Methods, IAP 2012
Ses 3-6 | MIT 16.660 Introduction to Lean Six Sigma Methods, January (IAP) 2008
Session 3-6: Implementing Lean License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
From playlist MIT 16.660 Introduction to Lean Six Sigma Methods, IAP 2008
Scales of Measurement - Nominal, Ordinal, Interval, & Ratio Scale Data
This statistics video tutorial provides a basic introduction into the different forms of scales of measurement such as nominal, ordinal, interval, and ratio scale data. My Website: https://www.video-tutor.net Patreon Donations: https://www.patreon.com/MathScienceTutor Amazon Store: htt
From playlist Statistics
Suffering at Sea: Peter Blume’s Nautical Trauma
Austin Porter (Kenyon College) In 1942 the American artist Peter Blume painted “The Raft,” a disturbing picture of three suffering, skeletal men stranded in a life raft. Inspired by recent reports of American servicemen lost at sea during World War II, this nearly two and a half feet tall
From playlist "In the Same Boat”: British and American Visual Culture During the Second World War
4. Machine Learning vs Materials Informatics
Is Machine Learning the same thing as Materials Informatics? That's an important question and to answer it we should consider several aspects of each and ask if they are the same such as data size, task, data heterogeneity, uncertainty quantification, featurization, and interpretability. I
From playlist Materials Informatics
What if serverless was real? - Nick Rockwell (The New York Times)
For most of us, the best approach to scaling complex distributed systems is to not do it at all. Nick Rockwell asks, so why isn't serverless a bigger deal? Subscribe to O'Reilly on YouTube: http://goo.gl/n3QSYi Follow O'Reilly on: Twitter: http://twitter.com/oreillymedia Facebook: http:
From playlist O'Reilly Velocity Conference 2017 - New York, New York
Introduction to Geometer's Sketchpad: Measurements
This video demonstrates some of the measurement and calculation features of Geometer's Sketchpad.
From playlist Geometer's Sketchpad
Conrad's Cunning Plan - Hiding In Plain Sight I THE GREAT WAR Week 95
SUPPORT US ON PATREON: http://patreon.com/thegreatwar Austro-Hungarian Chief of Staff Conrad von Hötzendorf had a plan to finally force a decision against the Italians. He massed troops and artillery in a different sector of the front planning a surprise offensive. And even though everyb
From playlist World War 1 - 1916 (Season 3)
Pawn Stars: Norman Rockwell Lithographs | History
Rick needs an expert's eye to help him verify the worth of two autographed Norman Rockwell lithographs in this collection of scenes from "Rocky Road." Subscribe for more from Pawn Stars: http://po.st/SubscribeToPawnStars Watch more Pawn Stars on YouTube in this playlist: http://po.st/Paw
From playlist Pawn Stars: Official Series Playlist | New Episodes Wednesdays at 8/7c | History
Norman Rockwell, Rosie the Riveter
Norman Rockwell, Rosie the Riveter, 1943, oil on canvas, 52 x 40 inches (Crystal Bridges Museum of American Art). A conversation with Dr. Margi Conrads, Chief Curator, Crystal Bridges Museum of American Art, and Dr. Beth Harris, Smarthistory.
From playlist Expressionism to Pop Art | Art History | Khan Academy
Lec 8 | MIT 16.885J Aircraft Systems Engineering, Fall 2005
Landing and Mechanical Systems View the complete course: http://ocw.mit.edu/16-885F05 License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
From playlist MIT 16.885J Aircraft Systems Engineering, Fall 2005
Linear regression is used to compare sets or pairs of numerical data points. We use it to find a correlation between variables.
From playlist Learning medical statistics with python and Jupyter notebooks