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On December 9, 1968, Douglas C. Engelbart and the group of 17 researchers working with him in the Augmentation Research Center at Stanford Research Institute in Menlo Park, CA, presented a 90-minute live public demonstration of the online system, NLS, they had been working on since 1962. The public presentation was a session in the of the Fall Joint Computer Conference held at the Convention Center in San Francisco, and it was attended by about 1000 computer professionals. This was the public debut of the computer mouse. But the mouse was only one of many innovations demonstrated that day, including hypertext, object addressing and dynamic file linking, as well as shared-screen collaboration involving two persons at different sites communicating over a network with audio and video interface. (1/9) youtube.com (2/9) youtube.com (3/9) youtube.com (4/9) youtube.com (5/9) youtube.com (6/9) youtube.com (7/9) youtube.com (8/9) youtube.com (9/9) youtube.com See also the Stanford Mousesite sloan.stanford.edu for the complete annotated version of the demo and background, as well as the Doug Engelbart Institute www.dougengelbart.org for more great resources. Credit to SRI International |
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Employee Presentation of four Aflac Plans |
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My new website is up and running, I'm curating resources and information for a range of common conditions, www.myfavouritemedicine.com A Doctor-Professor answers the old question "What is the single best thing we can do for our health" in a completely new way. Dr. Mike Evans is founder of the Health Design Lab at the Li Ka Shing Knowledge Institute, an Associate Professor of Family Medicine and Public Health at the University of Toronto, and a staff physician at St. Michael's Hospital. http www.facebook.com Conceived, written, and presented by Dr. Mike Evans Illustrated by Liisa Sorsa Produced, directed, and filmed by Nick De Pencier Picture and sound edit by David Schmidt Gaffer, Martin Wojtunik Whiteboard construction by James Vanderkleyn Production assistant, Chris Niesing ©2011 Michael Evans and Mercury Films Inc. |
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Sura Al Rahman - Good Presentation with subtitle |
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The New Jersey Antique Radio Club, continuing a long tradition of technical training for the electronics hobbyist, conducted the club's first Oscilloscope School in March, 2011. This hands-on "boot camp" introduction to using oscilloscopes was presented at the historic site of Marconi's 1914 Transatlantic Receiving Station, later home of the USArmy's Signal Corps Laboratories at Camp Evans, and now the home of the InfoAge Science and History Learning Center. The program is presented in three parts: Part 1: History of Oscilloscopes, by Al Klase, Technical Coordinator for NJARC Part 2: Basics of Oscilloscopes, by Alan Wolke, Application Engineer at Tektronix Corporation (begins at 15 min. 42 sec. into the program) Part 3: A Brief History of Oscilloscope Tubes, by Nevell Greenough (begins at 2 hr. 13 min. 35 sec. into the program.) The textbook for this seminar is available at www.njarc.org/scopes4dopes Index: 0:00:00 Opening and Agenda 0:02:50 Brief History of Oscilloscopes -- with Al Klase 0:15:00 Start of Basics of Oscilloscopes -- with Alan Wolke 0:19:00 Basic Block Diagram of an Oscilloscope 0:19:50 Oscilloscope / Display Overview 0:23:00 Display Section Functions and Controls 0:28:10 Vertical Section Description 0:33:17 Vertical Scale / Coupling Controls, Input Impedance 0:38:04 Vertical Mode Controls 0:48:05 In-circuit Example of using two traces on the oscilloscope 0:52:41 Horizontal Section Description 0:53:48 Horizontal Sweep Types & Controls 1:10:15 Triggering <b>...</b> |
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