The Art Of Insight In Science And Engineering (richcabot)
For many years, at the University of Cambridge and at MIT, I taught a course on the “Art of Approximation” organized by topics in physics and engineering. This organization limited the material’s generality: Unless you become a specialist in general relativity, you may not study gravitation again. Yet estimating how much gravity deflects starlight teaches reasoning tools that you can use far beyond that example. Tools are more general and useful than topics.
One often wonders why governments indebt themselves for so much more than they can ever hope to pay… Here, Western economists, bankers, traders, Ivy League academics and professors, Nobel laureates and the mainstream media have a quick and monolithic reply: because all nations need “investment and investors” if they wish to build highways, power plants, schools, airports, hospitals, raise armies, service infrastructures and a long list of et ceteras, economic and national activities are all about.
Colglazier writes that the 2015 UN Global Sustainable Development Report should act as a platform for continued interaction between scientists and policy makers. Doing so could help the policy officials develop a “science advisory ecosystem,” one that could encourage the use of science to inform sustainable development.
Mass Incarceration, Visualized (jdargis)
In this animated interview, the sociologist Bruce Western explains the current inevitability of prison for certain demographics of young black men and how it's become a normal life event. "We've chosen the response of the deprivation of liberty for a historically aggrieved group, whose liberty in the United States was never firmly established to begin with," Western says.
Have you ever wondered what a student’s schedule looks like? After all, New Jersey Department of Education is laser-focused on standardized test scores and being college and career ready. How does New Jersey translate that into the lives of the young citizens of Newark?
A Newark dad shared his child’s schedule. To my suburban friends, can you ever imagine your child bringing home a schedule that looks like this? Or a superintendent selling this to you? No? Me neither. This is outrageous.
This ranking sorts 61 countries by price, earnings needed to buy a gallon, and annual income spent on fuel.
Janette Brimmer, who represented the beekeepers for Earthjustice, an environmental group, said the ruling affects the entire country and will force states to withdraw more local rules that have permitted the insecticide. Federal appeals courts "almost never" overturn EPA approvals of pesticides, Brimmer said. "This was a pretty significant decision," she said. "It revokes the registration, and it is a national registration."
In the late 1950s, a few scientists realized that the level of carbon dioxide gas in the atmosphere might be rising and suggested that the average global temperature might climb a few degrees Celsius before the end of the 21st century. Roger Revelle, the most senior of those researchers (figure 2), publicly speculated that in the 21st century the greenhouse effect might exert “a violent effect on the earth’s climate” (as quoted by Time magazine in its 28 May 1956 issue). He thought the temperature rise might eventually melt the Greenland and Antarctic ice sheets, which would raise sea levels enough to flood coastlines. In 1957 Revelle told a congressional committee that the greenhouse effect might someday turn Southern California and Texas into real deserts. He also remarked that the Arctic Ocean might become ice free. But everyone understood that it was all speculation, more science fiction than scientific prediction.
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