The basic principles of DC motors are presented by Joe Wolfe of the University of New South Wales (Sydney, Australia) at the link: http://www.animations.physics.unsw.edu.au/jw/electricmotors.html Northwestern University (Chicago, Illinois) presents the basics of a DC motor in the Wiki page: http://hades.mech.northwestern.edu/index.php/Brushed_DC_Motor_Theory
About Prof. McCarthy
This author has yet to write their bio.Meanwhile lets just say that we are proud Prof. McCarthy contributed a whooping 309 entries.
Entries by Prof. McCarthy
The MatWeb site provides detailed information about materials such as the tensile strength of various compositions of steel. For example the search “low carbon steel” results in the list of links to information: http://www.matweb.com/search/QuickText.aspx?SearchText=low%20carbon%20steel
There are a variety of numbering systems for materials such as steel. The unified numbering system (UNS) uses a letter to designate a material category followed by five numbers constructed from the existing materials designations to coordinate all of these numbering systems. The unified numbering system (UNS) is described in Wikipedia at the link: Unified […]
The doors of the Koenigsegg CCX open using the “dihedral synchro-helix door actuation” system. You can see this movement on the video
Cambridge University provides a useful overview of materials properties such as the chart below. The tutorial can be accessed at the link: http://www-g.eng.cam.ac.uk/125/now/mfs/tutorial/non_IE/charts.html
Joseph Klann provided a useful comparison of the leg designs for the Mondo Spider and Theo Jansen’s Strandbeest at this unfortunately dead link: http://www.mechanicalspider.com/comparison.html. I keep in here in case he brings it back. Here is an excellent web page about the Klann and Jansen leg mechanisms, as well as other leg designs: Dog Feather Designs. […]
This walking machine is known as the Mondo Spider. More information is available at Mondospider.com. The leg of the mondo spider has the topology known as a Stephenson six-bar and is described in US Patent 6,260,862 awarded to Joseph Klann. Access it through the link: http://www.google.com/patents/about?id=70YHAAAAEBAJ&dq=6,260,862 Wikipedia calls this the Klann linkage which is described here: http://en.wikipedia.org/wiki/Klann_Linkage […]
Theo Jansen builds amazing walking machines. Each leg is an eight-bar linkage. The Wolfram Demonstration Project models this linkage in a Mathematica notebook. See the link: http://demonstrations.wolfram.com/ATheoJansenWalkingLinkage/
The National Institute of Standards and Technology provides an on-line periodic table. Access it and other information at the link: Periodic Table
This is a link to notes on Geometric Design and Tolerancing by Prof. Graeme Britton of Raffles Design Institute, Singapore. A pdf version of Prof. Britton’s lecture is available at: http://synthetica.eng.uci.edu/mechanicaldesign101/GDandT.pdf Here is another excellent set of notes from the Technical College of New Jersey on geometric dimensioning and tolerancing.