Maps are tools to show you where you are going, but they can also show you where you came from. That principle drives the work of Roberto Rodríguez and Patrisia Gonzales, who study ancient maps, oral traditions and the movement of domesticated crops to learn more about the origins of native people in the Americas.
"How do you bring memory back to a people that were told not to remember?" asks Rodríguez. As longtime scholars and syndicated columnists, Gonzales and Rodríguez explore this issue and others related to native people in the Americas. They recently entered the College of Agricultural and Life Sciences as graduate students in the life sciences communication department, and are teaching a class this summer that shows how the stories of Wisconsins native people fit into the larger history of the continent.
European efforts to homogenize indigenous people in the Americas destroyed much knowledge of the origins, migrations and history of different peoples, explains Rodríguez. However, some migration stories persist in oral traditions, including a central story - told in Mexico and depicted on the Mexican flag - of native people moving south from a place called Aztlán. The location of that place and the paths of movement are unclear, says Rodríguez, because people were moving around in all directions for thousands of years.
Roberto Rodríguez | EurekAlert!
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Nano- and microtechnology are promising candidates not only for medical applications such as drug delivery but also for the creation of little robots or flexible integrated sensors. Scientists from the Max Planck Institute for Polymer Research (MPI-P) have created magnetic microparticles, with a newly developed method, that could pave the way for building micro-motors or guiding drugs in the human body to a target, like a tumor. The preparation of such structures as well as their remote-control can be regulated using magnetic fields and therefore can find application in an array of domains.
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Researchers at Chalmers University of Technology and the University of Gothenburg, Sweden, have proposed a way to create a completely new source of radiation. Ultra-intense light pulses consist of the motion of a single wave and can be described as a tsunami of light. The strong wave can be used to study interactions between matter and light in a unique way. Their research is now published in the scientific journal Physical Review Letters.
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