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Publisher's Summary

In this issue of Scientific American, Ronald M. Kline reports on the controversial practice of using blood from umbilical cords and placentas to treat cancer patients, in his article "Whose Blood Is it Anyway?" Plus, virtual meetings, storms in space, the causes of violence, and a walk on the wireless side. Given some people's lack of attention in meetings, sometimes it seems they're not there at all. That may soon be true, at least in a virtual sense. In "Virtually There," technical pioneer Jaron Lanier says that three-dimensional tele-immersion is coming. Shockwaves from the sun can trigger severe turbulence in the space around the earth, putting satellites and astronauts at risk. In "The Fury of Space Storms," James L. Burch reports that a new spacecraft is showing how these storms develop. Plus, in "Violent Pride" Roy Baumeister delves into the latest research on the causes of violent behavior, and in this month's "Technicalities" column, "Look Ma! No Wires!" Mark Alpert evaluates the Ricochet wireless modem.
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©2001 Scientific American

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