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Agriculture Engineering

Spring 2017

Waste not

Someone forgot about the fruit salad. When the refrigerator door opens, the sickly sweet aroma delivers a potent reminder. All the rotting apples, pears, and bananas in the bowl will need to be thrown out, and hopefully composted. It may seem insignificant, but that fruit salad represents a piece of the 40 percent of food wasted in the United States, about 20 pounds per person each month.

In recent years, food waste in this country and many other places around the world has grown not only in volume, but also in the collective consciousness. The numbers are staggering. Americans throw away an estimated $165 billion … » More …

Winter 2016

Wood Takes Wing

The most complex chemistry lab on the planet is growing in your neighborhood. There might be a tree in your own backyard, cranking out chemicals as it converts sunlight to food, wards off pests, and circulates water and nutrients through it roots, branches, and leaves.

So diverse is the chemical compendium produced by trees that we get aspirin (willow bark is a natural source of salicylic acid and has been used to treat pain since ancient times), the ink Leonardo used in his notebooks (from leaf galls produced by wasp larvae), and natural antibacterials (the fiber in cedar chips is used to make hospital gowns).

» More …