Intermediate Word:  minx (a) type of cat  (b) small, fierce mammal  (c) small cupcake  (d) impudent girl
Difficult Word:
  nappe  (a) fluffy surface of a rug or fur  (b) sheet of water flowing over a dam (c) very fine, high clouds  (d) hard, transparent surface laid down over a natural surface

Scientists Develop Simple Alternative For Harvesting Daylight And Saving Energy - Science Daily  Left: The DaySwitch consists of a photosensor (bottom) that measures daylight levels and sends a signal to the microcontroller (top) that switches the luminaire on and off. (Photo by Rensselaer/LRC  “The DaySwitch™ is designed to build end-use efficiency by reducing light energy usage in commercial buildings and maintaining occupant satisfaction,” said Peter Morante, director of energy programs at the LRC. “It is estimated that the DaySwitch™ will be able to reduce lighting energy consumption by 30 percent in buildings with significant daylight contribution through windows or skylights, allowing for a payback period of approximately three years.”      
Cornell Study Finds That Galaxies Cluster Near Dark Matter - Science Daily  Left: A computer simulation of the distribution of "dark" matter at an early point in the history of the universe. The observations by Cornell's Duncan Farrah and colleagues provide solid evidence that galaxies in the distant past trace this matter distribution very well and that these galaxies will eventually reside in extremely rich clusters of galaxies at the current epoch.  "Our findings suggest that unseen dark matter -- which emits no light but has mass -- has had a major effect on the formation and evolution of galaxies, and that bright active galaxies are only born within dark matter clumps of a certain size in the young universe," said Cornell University research associate Duncan Farrah, the lead author of a paper on spatial clustering that appeared in the April 10 issue of Astrophysical Journal Letters.     

Young Chemical Engineer On Cutting Edge Of Organic Polymer-based Electronics - Science Daily  Left:  Zhenan Bao holds samples of flexible circuit boards, which combine the useful properties of semiconductors with the versatility of plastics. Bao was named a recipient of a 2006 Sloan Research Fellowship Award.  Bao has helped pioneer the field of organic polymer-based electronics by designing plastic circuit boards  Such "flexible electronics" can be used in displays, sensors and solar cells. Along with her work on flexible electronics, Bao's group at Stanford is studying polymer-based solar cells, carbon nanotube-based electronics and single-molecule nanoelectronics. She also has started a research collaboration with her husband, Jeff Tok, a biologist at Lawrence Livermore National Laboratory, on DNA-templated nanoelectronics.

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