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POPSTowers of Food Dickson Despommier, a professor of public health at Columbia University, hopes to spread his vision for "vertical farms" -- 30-story towers that could feed thousands of people. He created the concept with his graduate students, and it has since captured the imagination of architects and various city planners. The following images are artistic renderings of what some of these farms of the future might look like.
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POPSSen. Obama Scrapped Plans To Visit Landstuhl Medical Center Obama had been planning to go to Landstuhl Regional Medical Center in Germany before a flight to Paris. Gibbs said the stop was canceled because Obama decided "it would be inappropriate to make a stop to visit troops at a U.S. military facility as part of a trip funded by the campaign." Watch video: 4:05
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POPSPresident Sarkozy Hosts Bastille Day Ceremony Egyptian President Hosni Mubarak, Finnish President Tarja Halonen and Syrian President Bashar Assad attend the Bastille Day ceremony on July 14, 2008 in Paris, France. Syrian President Bashar al-Assad attended the Champs-Elysees military parade, alongside other European, North African and Middle Eastern leaders, which has caused controversy due to Syria's tie to organisations classified as terrorist by the several countries.
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POPSEurope's Governments Immune To Obama-Fever BERLIN (Reuters) - European fans will cheer on U.S. presidential candidate Barack Obama as he visits Berlin, Paris and London this week, but governments wary of his inexperience and evolving policies fear the euphoria is overdone. Largely an unknown quantity in Europe, the Democratic contender is due to land here on Thursday, kicking off the second part of a foreign tour that began in the Middle East with a speech on trans-Atlantic relations in the German capital.
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POPSDa Vinci's Model Car Although most historians agree the birth of the modern car came about in the late 19th century when two Germans, Gottlieb Daimler and Karl Benz, designed real, working internal combustion engines, experiments with moving vehicles weren't uncommon beforehand. As far back as 1770, a Frenchman named Nicolas Cugnot developed a steam-powered machine, the Fardier, which could crawl through the streets of Paris at about two miles per hour. It was more than 500 years ago, however -- sometime around the year 1478 to be more or less specific -- when Leonardo drew out his plans for the world's first self-propelled vehicle. A working model of Leonardo Da Vinci's car on display at the Museum of the History of Science in Florence, Italy.
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