Love in a Village, Act I @UniversityRochester

University of Rochester | Love in a Village, Act I @UniversityRochester | Uploaded October 2021 | Updated October 2024, 3 hours ago.
In October 2018, thanks in large part to a generous grant from the Humanities Project, the University of Rochester was able to stage and professionally record a truly historic musical-theatrical event: the first modern production of the 18th-century comic opera Love in a Village, performed to its original score. This production took place in the University’s Strong Auditorium, complete with period instruments, historically based choreography, and professional musicians.

The opera follows a pair of genteel young lovers who disguise themselves as servants in order to avoid the marriages their parents have arranged for them. This work reflected many of the middle-class values slowly overtaking 18th-century British culture, and which were increasingly being reflected in the “new” genre of the novel. (Indeed, Jane Austen is known to have attended Love in a Village multiple times.) It is often seen as the sentimental counterpart to John Gay’s famous ballad-opera, The Beggar’s Opera (1728).

This video is the first of three parts. View the other parts:

Act II: youtu.be/LyrMVvppgbk
Act: III: youtu.be/vyKTfGv8iwY

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$Sustainable water purification using laser treated metal Amid the coronavirus pandemic, people in developed countries are assured of ample supplies of clean water to wash their hands as often as needed to protect themselves from the disease. And yet, nearly a third of the world’s population is not even assured of clean water for drinking. University of Rochester researchers have now found a way to address this problem by using sunlight – a resource that everyone can access – to evaporate and purify contaminated water with greater than 100 percent efficiency. In a paper in Nature Sustainability (read the paper: https://www.nature.com/articles/s41893-020-0566-x), researchers in the laboratory of Chunlei Guo, professor of optics (The Chunlei Guo Lab website: www.optics.rochester.edu/workgroups/guo), demonstrate how a burst of femtosecond laser pulses etch the surface of a normal sheet of aluminum into a superwicking (water-attracting), super energy-absorbing material. When placed in water at an angle facing the sun, the surface: • Draws a thin film of water upwards over the metal’s surface • Retains nearly 100 percent of the energy it absorbs from the sun to quickly heat the water • Simultaneously changes the inter-molecular bonds of the water, significantly increasing the efficiency of the evaporation process even further. Using sunlight to boil has long been recognized as a way to eliminate microbial pathogens and reduce deaths from diarrheal infections. But boiling water does not eliminate heavy metals and other contaminants. Experiments by the lab show that their new method reduces the presence of all common contaminants, such as detergent, dyes, urine, heavy metals, and glycerin, to safe levels for drinking. Solar-based water purification can greatly reduce contaminants because nearly all the impurities are left behind when the evaporating water becomes gaseous and then condenses and gets collected. The most common method of solar-based water evaporation is volume heating, in which a large volume of water is heated but only the top layer can evaporate. This is obviously inefficient, Guo says, because only a small fraction of the heating energy gets used. A more efficient approach, called interfacial heating, places floating, multi-layered absorbing and wicking materials on top of the water, so that only water near the surface needs to be heated. But the available materials all have to float horizontally on top of the water and cannot face the sun directly. Furthermore, the available wicking materials become quickly clogged with contaminants left behind after evaporation, requiring frequent replacement of the materials. The panel developed by the Guo lab avoids these inefficiencies by pulling a thin layer of water out of the reservoir and directly onto the solar absorber surface for heating and evaporation. “Moreover, because we use an open-grooved surface, it is very easy to clean by simply spraying it,” Guo says. “The biggest advantage,” he adds, “is that the angle of the panels can be continuously adjusted to directly face the sun as it rises and then moves across the sky before setting” – maximizing energy absorption. “There was simply nothing else resembling what we can do here,” Guo says. Guo, who is also affiliated with the University’s Physics and Materials Science programs, has long envisioned an array of humanitarian applications for an efficient solar-based purification method. “This is a simple, durable, inexpensive way to address the global water crisis, especially in developing nations,” he says, noting that it could help relieve water shortages in drought-stricken areas and be helpful in water desalinization projects. The project was supported by funding from the Bill and Melinda Gates Foundation, the National Science Foundation, and the US Army Research Office. Subscribe to the University of Rochester on YouTube: https://www.youtube.com/channel/UCZRLVZGCUZWYUEj2XQlFPyQ Follow the University of Rochester on Twitter: https://twitter.com/UofR Be sure to like the University of Rochester on our Facebook page: https://www.facebook.com/University.of.Rochester/$

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