Online courses directory (35)
Videos exploring the way things work. These videos have recently been updated to include 1080p HD versions. What is inside an alarm clock radio?. What is inside a hair dryer? (1 of 2). What is inside a hair dryer? (2 of 2). What is inside a digital camera? (1 of 2). What is inside a digital camera? (2 of 2). What is inside a coffee maker?. What is inside a DVD player? (1 of 5). What is inside a DVD player? (2 of 5). What is inside a DVD player? (3 of 5). What is inside a DVD player? (4 of 5). What is inside a DVD player? (5 of 5). What is inside a universal remote control?. What is inside a tap light?.
This course covers the basic principles of elastic behavior for different materials such as wood, steel, concrete, and composite materials and compares the properties and applications of materials generally. It investigates cross sectional stress and strain behavior in flexure and in shear, and torsion as well as the stability of beams and columns. The qualitative behavior of combined stresses and fracture in materials is also covered. Course Level: Undergraduate This Work, ARCH 324 - Structures 2, by Peter von Buelow is licensed under a Creative Commons Attribution license.
This is an introductory course in research methods and proposal writing. The course is designed to give students experience in hypothesis and specific aims development and an overview of the use of the scientific study design for solving health-related problems. The governing principle of the course is to provide students with an interactive
Recommender systems guide people to interesting materials based on information from other people. A large design space of alternative ways to organize such systems exists. The information that other people provide may come from explicit ratings, tags, or reviews, or implicitly from how they spend their time or money. The information can be aggregated and used to select, filter, or sort items. The recommendations may be personalized to the preferences of different users. Course Level: Graduate This Work, SI 580 - Understanding Records and Archives: Principles and Practices, by Paul Conway is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike license.
This course builds on the conceptual framework of information needs and the use of information provided in SI 501. In that course the focus is on techniques that information professionals use to understand the needs of people who employ a wide variety of information systems. Emphasis is on professional practice. Professional practice occurs both in institutional settings (including public, academic, special, and school libraries and information centers) and directly between information professionals and clients (such as information brokers). Prepares students for need-based, client-centered professional practice in a variety of information environments (including public, academic, special libraries and school media centers) in a period of major change. Professional practice consists of a variety of functions and practices which increase client access to information and knowledge. It is based both on an understanding of user information constructs and on knowledge of information systems and services. Course addresses concepts related to public libraries, academic libraries, special libraries, medical libraries, school libraries, and information centers, strategy and strategies, competency, and competencies. Course Level: Graduate This Work, SI 643 - Professional Practice in Libraries and Information Centers, by Joan C. Durrance is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike license.
Modern computer technology requires an understanding of both hardware and software, as the interaction between the two offers a framework for mastering the fundamentals of computing. The purpose of this course is to cultivate an understanding of modern computing technology through an in-depth study of the interface between hardware and software. In this course, you will study the history of modern computing technology before learning about modern computer architecture and a number of its important features, including instruction sets, processor arithmetic and control, the Von Neumann architecture, pipelining, memory management, storage, and other input/output topics. The course will conclude with a look at the recent switch from sequential processing to parallel processing by looking at the parallel computing models and their programming implications.
This course provides an integrated introduction to electrical engineering and computer science, taught using substantial laboratory experiments with mobile robots. Our primary goal is for you to learn to appreciate and use the fundamental design principles of modularity and abstraction in a variety of contexts from electrical engineering and computer science.
Our second goal is to show you that making mathematical models of real systems can help in the design and analysis of those systems. Finally, we have the more typical goals of teaching exciting and important basic material from electrical engineering and computer science, including modern software engineering, linear systems analysis, electronic circuits, and decision-making.
Course Format
This course has been designed for independent study. It includes all of the materials you will need to understand the concepts covered in this subject. The materials in this course include:
- Lecture videos from Spring 2011, taught by Prof. Dennis Freeman
- Recitation videos, developed for OCW Scholar by teaching assistant Kendra Pugh
- Course notes
- Software and design labs
- Homework assignments and additional exercises
- Nano-quizzes and exams with solutions
Content Development
Leslie Kaelbling
Jacob White
Harold Abelson
Dennis Freeman
Tomás Lozano-Pérez
Isaac Chuang
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Concepts in Nanotechnology is a six-week introduction to nanotechnology. The course is designed at a pre-college level, with no college level chemistry, math, or physics experience required. You will learn what nanotechnology is and what it means for something to be a nanomaterial. You will also learn about the applications and commercial products that use nanotechnology. This is an exciting opportunity to delve into the nano-world. Prerequisites: The course is taught entirely in English and aimed at a U.S. high school level. You need to be familiar with the basic concepts of chemistry, such as the theory of atoms and the periodic table of elements. Basic algebra skills, such as how to deal with equations containing variables, fractions, and exponents is necessary. No prerequisite knowledge in nanotechnology, materials science, or physics is required.
Statics is the study of methods for quantifying the forces between bodies. Forces are responsible for maintaining balance and causing motion of bodies, or changes in their shape. You encounter a great number and variety of examples of forces every day, such as when you press a button, turn a doorknob, or run your hands through your hair. Motion and changes in shape are critical to the functionality of man-made objects as well as objects the nature. Statics is an essential prerequisite for many branches of engineering, such as mechanical, civil, aeronautical, and bioengineering, which address the various consequences of forces. This course contains many interactive elements, including: simulations; “walk-throughs” that integrate voice and graphics to explain a procedure or a difficult concept; and, most prominently, computer tutors in which students practice problem solving with hints and feedback. This course uses algebra and trigonometry and is suitable for use with either calculus- or non-calculus-based academic statics courses. Completion of a beginning physics course is helpful for success in statics, but not required. Many key physics concepts are included in this course.
Carpentry is a highly skilled trade and the work carpenters carry out is essential during the construction phase of items as varied as residential and commercial buildings, ships, timber bridges, concrete formwork etc. The main work performed by a carpenter during the construction phase is the cutting, shaping and installation of building materials. In this free online course the learner will be introduced to skills that are essential during the construction phase of any project such as reading plans and elevations so that construction designs can be understood, how to build floor systems for residential and commercial properties, how to build and construct wall and ceiling framing systems, and the methodologies of roof framing. This course will be of great interest to all construction professionals who would like to learn more about the use of carpentry skills as part of the construction process, and to all learners who are interested in carpentry and construction as a career.
There is a constant demand for carpenters in the construction trade. Today, expertise in working with various types of building materials is an indispensable requirement of a carpenter's job. Formwork and joinery are two such areas where skilled carpenters would find themselves working with diverse materials. Formwork involves constructing the forms into which concrete is poured, whereas joinery comprises of working with the wooden parts of a building, such as window frames and doors. Both jobs require further knowledge of working with wood, concrete, and other building materials such as steel reinforcement bars. This free online course will introduce the learner to the basic practices involved in formwork and joinery. The course explains the general types of concrete, concrete mixing information, and the test carried out to measure the workability of fresh concrete. The course also outlines the key components and terms associated with windows, exterior doors, and stairways used in residential construction. This course will be of great interest to all construction professionals who would like to learn more about the carpentry skills involved in finishing and closing off a structure. It will also be of interest to all learners who want to further develop their career in carpentry and the construction trade.<br />
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