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All the ants on earth weigh as much as seven billion people. That calculation comes from German biologist Bert Hölldobler and American biologist Edward Wilson in their book The Ants (1990). Ants are constantly busy, carrying things from here to there without leaving a trace of trash behind. Ants Read More...
Sometimes, optimism might seem to be an abstract concept. Here at The Intelligent Optimist, we try to show what an optimistic lifestyle can contribute to your life. And with us, there are many others trying to make optimism visible. One of them is David Mezzapelle, who created the book series Read More...
Three simple tests performed in middle age may be able to predict survival in old age. The tests are the strength of one’s grip, speed in rising out of a chair and ability to balance on one leg with the eyes closed. Researchers from University College London looked at how performance on these Read More...
For more than three decades, villagers in Marinaleda, Spain, have fought a relentless struggle to create utopia. Now, even as Spain’s economic crisis deepens, this village has almost full employment, strong social cohesion and no police. Journalist Dan Hancox wrote a lively, engaging book, The Read More...
The boys in this picture live in the center of Dharavi, Mumbai, one of the world’s biggest slums. More than a million people live in Dharavi and it’s an extremely unhealthy place to live because of the severe air pollution. Onno van Schayck, professor of preventative medicine at the University Read More...
Think about it: These days, most poor families in the West have phones, TVs, washing machines and cars. The tap water is clean, and the food is safe to eat. We’re not trying to play down the problem of poverty, but these conditions are a vast improvement over those in, say, the 1950s. The value Read More...
Fair trade allows farmers in developing countries to grow out of poverty by guaranteeing at least a fair minimum price for their product. Without fair trade it can be difficult for farmers to compete in the global marketplace while still making a decent wage. Today half the world lives on less Read More...
There is more grass grown in the United States than the next three most popular crops combined– which are corn, alfalfa, and soybeans. While the Bowery Project, an urban farming initiative, is based out of Toronto, there are a few things us Americans could learn from this northerly neighbor. The Read More...
Eating foods high in fiber—like fruit, legumes and grains—after surviving a heart attack can decrease your chances of dying over the years that follow. People who increased their fiber intake the most after suffering from a heart attack were 25% less likely to die from any cause up to nine Read More...
Scientists from Northwestern University have created a new type of solar panel that is less expensive to produce, better for the environment, and could eventually be more efficient at capturing the suns rays and turning them into energy. Perovskite solar panels, solar cells with a crystal structure Read More...