The Michigan Engineer News Center

What impact does your lawn have on our Earth?

Engineering Professor Steven Skerlos analyzes elements of lawn care, and explains the impact they have on the environment.| Short Read

It’s summertime, and the sound of lawnmowers can be heard in neighborhoods across America as homeowners work outside to take care of their lawns. That lawn care requires resources such as electricity, gasoline, water and, often, chemicals. Engineering Professor Steven Skerlos analyzes those elements of lawn care, and explains the impact they have on the environment.

About the Professor

Steven Skerlos is is the Arthur F. Thurnau Professor of Mechanical Engineering at the University of Michigan College of Engineering. His research interests include His research interests include environmental and sustainable technology systems; life cycle product design optimization; pollution prevention technologies for manufacturing; metalworking fluid formulation and performance; membrane filtration; supercritical fluid delivery of lubricants; biological detection and control in aqueous systems; technology policy analysis.

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The electrons absorb laser light and set up “momentum combs” (the hills) spanning the energy valleys within the material (the red line). When the electrons have an energy allowed by the quantum mechanical structure of the material—and also touch the edge of the valley—they emit light. This is why some teeth of the combs are bright and some are dark. By measuring the emitted light and precisely locating its source, the research mapped out the energy valleys in a 2D crystal of tungsten diselenide. Credit: Markus Borsch, Quantum Science Theory Lab, University of Michigan.

Mapping quantum structures with light to unlock their capabilities

Rather than installing new “2D” semiconductors in devices to see what they can do, this new method puts them through their paces with lasers and light detectors. | Medium Read