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Directional design: classroom chair
Design a chair that is well suited for use in a classroom and also has a low impact on the natural environment. Look closely at requirements in a design brief such as durability and ergonomic features. Ask school staff, students and consultants which design factors are important. Improve the chair's appeal and usefulness by choosing options for an element such as colour, materials and finish. Minimise environmental impact by choosing el
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Directional design: computer lab chair
Design a chair that is well suited for use in a computer lab and also has a low impact on the natural environment. Look closely at requirements in a design brief such as durability and ergonomic needs. Ask school staff, students and consultants which design factors are important. Improve the chair's appeal and usefulness by choosing options for an element such as colour, materials and finish. Minimise environmental impact by choosing el
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Directional design: study desk
Design a desk that is well suited for uses in a home and also has a low impact on the natural environment. Look closely at requirements in a design brief such as storage and ergonomic features. Ask a family and consultants which design factors are important. Improve the desk's appeal and usefulness by choosing options for an element such as colour, materials and finish. Minimise environmental impact by choosing elements such as surface
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Directional design: study lamp
Design a desk lamp that is well suited for studying and also has a low impact on the natural environment. Look closely at requirements in a design brief such as energy efficiency, stylishness and stability. Ask a family and consultants which design factors are important. Improve the lamp's appeal and usefulness by choosing options for an element such as materials, shape of the shade and base. Minimise environmental impact by choosing de
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Directional design: cafeteria chair
Design a chair that is well suited for use in a cafeteria and also has a low impact on the natural environment. Look closely at requirements in a design brief such as durability, stylishness and hygiene features. Ask school staff, students and consultants which design factors are important. Improve the chair's appeal and usefulness by choosing options for an element such as colour, materials and finish. Minimise environmental impact by
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3.091 Introduction to Solid State Chemistry (MIT)
This course explores the basic principles of chemistry and their application to engineering systems. It deals with the relationship between electronic structure, chemical bonding, and atomic order. It also investigates the characterization of atomic arrangements in crystalline and amorphous solids: metals, ceramics, semiconductors, and polymers (including proteins). Topics covered include organic chemistry, solution chemistry, acid-base equilibria, electrochemistry, biochemistry, chemi
Author(s): Sadoway, Donald

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Content within individual OCW courses is (c) by the individual authors unless otherwise noted. MIT OpenCourseWare materials are licensed by the Massachusetts Institute of Technology under a Creative C

A notched-bar impact test of copper
A notched-bar impact test of copper carried out at room temperature. From TLP: The Ductile-Brittle Transition, http://www.msm.cam.ac.uk/doitpoms/tlplib/ductile-brittle-transition/results.php
Author(s): DoITPoMS, University of Cambridge

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Doctoral Studies at Cranfield -- My View: Imran Zawwar
Imran Zawwar introduces himself, his research topic around economic entrepreneurship and explains what led to him pursuing a PhD at Cranfield School of Management.
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It's On Us!
We have a lot of traditions here at the University of Arizona; tolerating sexual assault is definitely not one of them. It's on us to Bear Down on sexual assault.
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電子物性論A
Electronic and magnetic properties of solids are lectured based on quantum mechanics and solid state physics. Beginning with fundamentals of quantum mechanics, perturbation theories are given as some approximation methods. These will be applied to electromagnetic radiation and energy band theory. Fundamentals of transportation, scattering and diffraction of waves and particles in solids are mentioned. Fundamental theories of magnetic properties spin dependent phenomenon and superconductivity wil
Author(s): TOKYO TECH OCW

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Season 2 – Lesson 28 – Coffee Break Spanish
Coming up in this lesson: In lesson 28 we’ll be continuing to create phrases in the language based on the knowledge of grammar we’ve acquired in recent lessons. This week we’re focusing on the context of taking a taxi in a Spanish-speaking country. Please note that lesson 28 of Season 2 was originally known as […]
Author(s): radiolingua

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What is really learned at university?: The SOMUL Project - conceptualisation and design
The project is attempting to bring together psychological and sociological conceptions of university learning and relate both to conceptions derived from current higher education policy and practice, disciplinary cultures and students. The focus of the empirical part of the project will be on student conceptions of learning but at this stage we are concerned to explore the conceptual relationships between different theoretical approaches to ‘what is learned’. Within a highly differentiated
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The economics of AMR
47 PowerPoint slides from Richard Smith of the London School of Hygiene and Tropical Medicine on The economics of AMR, covering: What is antimicrobial resistance (AMR); Economic conceptualisation of AMR; Cost of resistance - country, hospital, disease; Micro-economic evaluation of strategies to contain AMR; Macro-economic evaluation of impact of AMR and strategies to contain AMR
Author(s): Richard Smith

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TALAT Lecture 3503: Finishing and other Supplementary Operations
This lecture describes supplementary fabrication measures for impact extruded parts and gives some examples of finished impacts. Basic knowledge about the formability of metals and background in mechanical engineering is assumed.
Author(s): Klaus Siegert, Institut für Umformtechnik, Univer

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TALAT Lecture 3501: Alloys and Properties
This lecture provides a background on aluminium alloys suitable for impact extrusion. It draws attention to raw material parameters which may affect the properties of impact extruded parts. Basic knowledge about the formability of metals and background in mechanical engineering is assumed.
Author(s): Klaus Siegert, Institut für Umformtechnik, Univer

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Notched zinc, broken by impact at room temperature
This is a notched zinc specimen broken by impact at room temperature. It has failed by a cleavage mechanism. One can observe the cleavage planes clearly separated by regions of local shear, where the fracture path crosses to adjacent planes. The cleavage planes are atomically flat and are not associated with much plastic deformation. At low temperature metals having b.c.c. and h.c.p structures have insufficient independent slip systems operating and are brittle, fracturing by cleavage.
Author(s): Prof T W Clyne, Department of Materials Science an

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Notched zinc, broken by impact at room temperature
This is a notched zinc specimen broken by impact at room temperature. It has failed by a cleavage mechanism. One can observe the cleavage planes clearly separated by regions of local shear, where the fracture path crosses to adjacent planes. The cleavage planes are atomically flat and are not associated with much plastic deformation. At low temperature metals having b.c.c. and h.c.p structures have insufficient independent slip systems operating and are brittle, fracturing by cleavage.
Author(s): Prof T W Clyne, Department of Materials Science an

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Glass transition: deformation of a rubber ball near Tg. Bounce close up
Part of a series of videos showing the glass transition in polymers, and the resulting change in energy dissipation on impact: Close up video at one tenth actual speed of ball bouncing near Tg. From TLP: The Glass Transition in Polymers, http://www.msm.cam.ac.uk/doitpoms/tlplib/glass-transition/demos.php
Author(s): DoITPoMS, University of Cambridge

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Glass transition: energy dissipation as rubber ball bounces at −70 °C
Part of a series of videos showing the glass transition in polymers, and the resulting change in energy dissipation on impact: Video at one tenth actual speed of a rubber ball bouncing at -70° C (close to Tg), showing that nearly all the energy is dissipated, and the ball barely bounces at all. From TLP: The Glass Transition in Polymers, http://www.msm.cam.ac.uk/doitpoms/tlplib/glass-transition/demos.php
Author(s): DoITPoMS, University of Cambridge

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Glass transition: energy dissipation as rubber ball bounces at −50 °C
Part of a series of videos showing the glass transition in polymers, and the resulting change in energy dissipation on impact: Video at one tenth actual speed of a rubber ball bouncing at -50° C (just above Tg), showing that more of the elastic strain energy is dissipated, and the ball does not bounce as high. From TLP: The Glass Transition in Polymers, http://www.msm.cam.ac.uk/doitpoms/tlplib/glass-transition/demos.php
Author(s): DoITPoMS, University of Cambridge

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