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http://demonstrations.wolfram.com/PartialStandingWaves The Wolfram Demonstrations Project contains thousands of free interactive visualizations, with new ent…

Due to the partial US Government shutdown, the National Wildlife Refuge Week Amateur Radio special event October 12 until October 20 has immediately suspended rules that confine NWR Week stations operations within the boundaries of national wildlife refuges and wildlife areas. The government shutdown has closed some, if not all, federal wildlife refuges, so stations may operate from any locatio…

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