This undated photo released by Michigan State University in East Lansing, Mich., shows doctoral student Xu Lu, who is part of a team that has developed a new thermoelectric material designed to more cheaply capture waste heat energy produced by car engines and industrial processes . Lu is shown working at the university’s Center for Revolutionary Materials for Solid State Energy Conversion. (AP Photo/G.L. Kohuth, Michigan State University).

Associated Press
This undated photo released by Michigan State University in East Lansing, Mich., shows doctoral student Xu Lu, who is part of a team that has developed a new thermoelectric material designed to more cheaply capture waste heat energy produced by car engines and industrial processes . Lu is shown working at the university’s Center for Revolutionary Materials for Solid State Energy Conversion. (AP Photo/G.L. Kohuth, Michigan State University).
This undated photo released by Michigan State University in East Lansing, Mich., shows doctoral student Xu Lu, who is part of a team that has developed a new thermoelectric material designed to more cheaply capture waste heat energy produced by car engines and industrial processes . Lu is shown working at the university’s Center for Revolutionary Materials for Solid State Energy Conversion. (AP Photo/G.L. Kohuth, Michigan State University).
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