Professor Soichi Nambu, revisiting Cambridge. Guo Lei is on the right and Neel Bhattcharya on the left.
Notice the colourful Kit Kats, available only in Japan
Mon ami, mon amour, mon baguette!
Microamps in action
Fewer microamps
Rebooting the system, Seung Woo Seo
Professor Dong Woo Suh, deep in thought. What is this strange object?
Corrosion experiments in progress at POMIA, POSTECH.
POMIA, the partner institute to GIFT
The wooden benches in the GIFT garden have been failing. Here, Professor Dong Woo Suh and Harry Bhadeshia explain why.
Notice the continuous crack on the horizontal beam to which the vertical slats are connected by "dove tail" type joints and glue. Notice also that the cracks follow the grain of the wood.
This bench has not developed the cracks as yet.
… although there are clear signs of distress, with the grain of the wood clearly playing a role
This bench on the other hand has completely failed through the action of tensile stresses by people sitting on it, and, as seen in the next picture, the failure of the horizontal beam.
The fatal longitudinal cracks, which basically compromise the integrity of the joints.
Another sectacular failure.
The benches are at various stages of failure. The solution is to use a beam whose grain does not follow its length. Must be hard to get such beams. So the alternative is to screw the vertical slats in poisition, rather than create stress concentrations by forcing the vertical slats into the holes. This would create tensile stresses normal to the flow of the grain, and hence failure.
Only one student in Harry's lecture on bulk nanostructured steel. Soon-Young Jun is clearly an excellent student.
The monopoles in action
