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You are losing weight, just by breathing! This public radio story describes how people lose weight when sleeping, and that much of that lost weight comes simply from breathing. You will learn how matter is recycled and how everyone contains atoms from historical figures. The story also helps you visualize just how small and numerous atoms and molecules are.
Story Length: 8:31
WBUR's Here and Now
AIR DATE: 07/15/2013
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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