LyrArc Article Gist
The Nuclear Safety Commission of Japan, one of two safety regulators in Japan, met in October 2010. At that meeting a presentation by Takanori Tanaka, head of the government supported Nuclear Power Engineering Center, advocated new technologies that would reduce risk in the event of earthquakes and tsunamis. The presentation focussed on new plants and did not go into retrofitting old plants with new backup solutions for cooling in the event of electrical failure. A recent article by Hitachi researchers brought up the idea of isolation condensers which could provide temporary power supplies in the event of electrical failure. One such device was on No. 1 reactor at Fukushima (built in 1971), and worked after the quake but later failed. The views of nuclear engineers at Hitachi discussed here show that cost remains a constraint in the design of nuclear reactor cooling systems, and redundancy with several layers of diverse backup systems for cooling are not being pushed by companies building the reactors. See the group articles for G.E.'s Mark 1 system which show cost and easier to build were factors behind the smaller containment systems favored for that design. Fukushima plant uses the Mark 1 reactors. Without independent safety regulation that does not rely on the companies for analysis and solutions, regulation risks becoming too dependent on companies for coming up with the strong safety precautions that are absolutely essential. These safety precautions can succumb to cost pressures....

LyrArc Article Gist
Interview with Bill Gates on the Gates foundation's educational activities and his thoughts on the budget cuts in education. The Gates Foundation launches an effort to improve education in selected school districts- Memphis, Tennessee, Hillsborough, Florida, Pittsburgh, and a charter consortium in California. The foundation has awarded $290 million for this effort to improve teacher effectiveness and set up new personnel systems. The idea is to raise the average level of quality in these schools through teacher effectiveness using a system designed by the foundation. Gates sees the need for more targeted investment in schools and close cooperation with teachers, principals, superintendents and administrative people. For this reason he sees the current budget atmosphere as counterproductive, as it will cut spending on education and act as a distraction from the hard work that needs to get done. On education spending Gates points out that one has to be careful as a society not to neglect the young as one uses resources to support the elderly. He points out that the only way to get this whole thing to work is for some increases in taxes and putting a lid on increases in medical costs, so that education in America does not get shortchanged. Recent polls show preference for some increase in taxes when it comes to supporting education spending....