Lecture 8: An Early Structural Engineering Problem: the Oxford Connection
Professor Guy Houlsby on "An Early Structural Engineering Problem: the Oxford Connection". The lecture followed the history of a structure often known as a "Serlio Frame" from its earliest mention (around 1270) to modern times. The structure is an intriguing "reciprocal frame" that is able to span a space with beams that are all shorter than the span required. The rare examples of construction of the frame were discussed (including one in Oxford).
Cold War: Red China - part 3/5
1949 - 1972 Chinese communists win the longest civil war in 20th century history. Mao's land reforms are popular but in 1958, he embarks on a series of catastrophic changes. China maintains an incrasingly uneasy relationship with the Soviet Union. In 1960, the Sino-Soviet split paves the way for President Nixon's historic visit to Beijing.
TALAT Lecture 4500: Resistance Welding
This lecture describes the spot welding characteristics of aluminium and its alloys, the spot welding process, the choice of process parameters, strength values, electrode life and ?requirements for quality assurance. General engineering background and knowledge in aluminium metallurgy and physical properties, and surface characteristics (e.g. TALAT lecture 5101) is assumed.
Indus Valley Civilization
An ainimated feature that shows what life might have been like during this time period. No narration and so the teacher must provide insights into what the video is showing.
Ideas for Chemistry FM radio programmes for science week 2010
Nathan Gray, an MA student studying Science and Environmental Journalism, is funded by one of our project bursaries to help develop the radio programmes for Science Week. He’s decided upon five programmes and has drafted up the following for comment among the project team. It’s still under discussion but provides a good idea of what […]
HST.535 Principles and Practice of Tissue Engineering (MIT)
The principles and practice of tissue engineering (and regenerative medicine) are taught by faculty of the Harvard-MIT Division of Health Sciences and Technology (HST) and Tsinghua University, Beijing, China. The principles underlying strategies for employing selected cells, biomaterial scaffolds, soluble regulators or their genes, and mechanical loading and culture conditions, for the regeneration of tissues and organs in vitro and in vivo are addressed. Differentiated cell types and stem cells
How best to communicate with communities affected by disaster? Case Studies from Typhoon Haiyan
This seminar will investigate how different technologies were used by CDAC Network Members in the immediate response to Typhoon Haiyan, focusing particularly on how needs assessment data was collected, shared and acted upon. This seminar will investigate how different technologies were used by CDAC Network Members in the immediate response to Typhoon Haiyan, focusing particularly on how needs assessment data was collected, shared and acted upon. The session will discuss some of the challenges fa
"Tess's Tree"--Meet Illustrator Peter H. Reynolds
Watch illustrator Peter H. Reynolds talk about his inspiration for Tess and see how he creates her. Tess loved her tree. She liked to swing on it and sit in its shade and catch its leaves in the fall.When Tess's tree has to come down, Tess is very sad . . . until she finds a way to gather friends and family and celebrate her tree's remarkable life.This is a book for sharing with people you love, among good friends, or on a quiet day under a favorite tree. This is a great reso
Electrical Switches, Part 1, Introduction - Basic Switches
This video introduces the principles and terminology of mechanical electrical switches. It covers terms such as contacts, normally open, normally closed, poles, and throws.
Electrical Switches, Part 5, Switch Contacts and Arcing
This video explains the importance of contacts in electrical switches. It describes the effects of arcing and contamination on switch operation. It also shows the effects of high voltage arcs and the danger of arc blasts.