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People lose weight when sleeping, and much of that weight loss comes from merely breathing. Through a process of matter being recycled along with sweating while sleeping, people lose weight. However, the atoms and molecules involved are so small that it is hard to believe they are so powerful in this process. Listen to learn how this cycle works.
Story Length: 8:31
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Food gives our body the energy needed to function and thrive. But what is energy? Where can you find it and how can you calculate it? This public radio story explores the energy in a cheese curl by burning it. Listen to learn about a great lab that allows you to calculate the energy in food.
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Our food supply is considered safe today thanks in large part to a movement to improve safety following the publication of the novel in 1906, "The Jungle" by Upton Sinclair. It was a vivid portrayal of the lives of immigrant families who worked in a meat-packing plant in Chicago. Americans were shocked and disgusted. This public radio story tells of how "The Jungle" galvanized public support to improve the safety of our food system.
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Discussion of Carbon Dioxide (CO2) emissions often occur at the national level. Nations promise to lower emissions and scientists look for alternative energy sources. But new software is providing data for this emission reduction discussion at a local level. The software allows people to have a view into their carbon emissions on the level of a city, neighborhood, block and even household. Listen to learn how scientists and local officials are working together to track and understand emissions at the local level.
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Food banks distribute billions of pounds of food each year throughout the United States to hungry children and adults. The Feeding America network is the nation’s largest organization working to end hunger. But it had a problem. The food banks were receiving large donations of food, but not necessarily the kinds of foods they needed. For example, one center received lots of pickles, but not enough produce. To solve this problem the Feeding America network created a market economy in order to distribute food among it’s food banks. Using fake money, the food banks created a market that assures better allocation of food across the distribution centers. Listen to the story to learn more about how market economics solved their allocation problem.
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