SciTech Now: Episode 308

By 1867, settlers wiped out the native elk population in Pennsylvania. Today, the animal is in the midst of an amazing comeback thanks to conservation officers and the science gathered during a limited hunting season. Other stories include women in science, creating your own invisibility cloak, and virtual reality under water.
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Discover the world of sunset forecasts being done by Penn State students. Also, see the science inside the biggest recycling plant in New York city, and the ultimate game of memory.

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