"Over the course of human history, thousands of languages have developed from what was once a much smaller number. How did we end up with so many? And how do we keep track of them all? Alex Gendler explains how linguists group languages into language families, demonstrating how these linguistic trees give us crucial insights into the past."
"By 2050, the world's population will likely increase 35 percent. But is growing more food the only option—or even the best? National Geographic investigates the challenges and solutions to feeding everyone on our planet, based on an eight-month series in National Geographic magazine. Visit http://natgeofood.com for ongoing coverage of food issues as we investigate the Future of Food today on World Food Day."
Tags: sustainability, agriculture, food production, unit 5 agriculture.
"Louise Fresco argues that a smart approach to large-scale, industrial farming and food production will feed our planet's incoming population of nine billion. Only foods like (the scorned) supermarket white bread, she says, will nourish on a global scale."
"With modern technology, a global exchange of goods and ideas can happen at the click of a button. But what about 2,000 years ago? Shannon Harris Castelo unfolds the history of the 5,000-mile Silk Road, a network of multiple routes that used the common language of commerce to connect the world's major settlements, thread by thread."
"When linguists talk about the historical relationship between languages, they use a tree metaphor. An ancient source (say, Indo-European) has various branches (e.g., Romance, Germanic), which themselves have branches (West Germanic, North Germanic), which feed into specific languages (Swedish, Danish, Norwegian). Minna Sundberg, creator of the webcomic Stand Still. Stay Silent, a story set in a lushly imagined post-apocalyptic Nordic world, has drawn the antidote to the boring linguistic tree diagram."
"This animation distils hundreds of years of culture into just five minutes. A team of historians and scientists wanted to map cultural mobility, so they tracked the births and deaths of notable individuals like David, King of Israel, and Leonardo da Vinci, from 600 BC to the present day. Using them as a proxy for skills and ideas, their map reveals intellectual hotspots and tracks how empires rise and crumble. The information comes from Freebase, a Google-owned database of well-known people and places, and other catalogues of notable individuals. The team is based at the University of Texas at Dallas."
The city cannot afford to slow development. The goal, then, is to encourage growth while protecting long-term homeowners and creating neighborhoods that are economically and racially diverse. The staff of the Philadelphia Daily News examines the gentrification issue, neighborhood by neighborhood, and offers a guide for residents trying to navigate through these changing times.
"Ukraine is the quintessential borderland state. The country borders three former Soviet states and four countries in the European Union. Ukraine sits on the Northern European Plain, the area that has historically served as an invasion superhighway going east and west."