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Physics
First particle tracks seen in prototype for international neutrino experiment
Neutrinos are the most abundant, and most mysterious, type of matter in the universe. Physicists from the School of Arts and Sciences had a hand in designing a massive instrument, the ProtoDUNE, that has detected the first evidence of these particles of matter.
Learn from the experts with the Penn Science and Lightbulb Cafes
The lecture series, hosted by the School of Arts and Sciences, offers a casual setting in which researchers can present their work and engage with the attendees during a Q&A period, giving a glimpse into the research at Penn.
Physicist theorizes that dark matter is a superfluid
A hypothesis by Justin Khoury of the Department of Physics and Astronomy stands to shake up how scientists consider dark matter.
The snow graphics in ‘Frozen’ can predict the mechanics of real avalanches
The Department of Computer and Information Science’s Chenfanfu Jiang recently published a study in Nature Communications that accurately models slab avalanches, bringing realistic natural phenomena to movies and practical applications for scientific predictions.
A physics treasure hidden in the pattern of wallpaper
Charles Kane and Andrew Rappe of the School of Arts and Sciences were part of an international team that has identified a new form of insulating material that may one day provide a basis for quantum computing. The patterns found in everyday wallpaper played a role in the discovery.
Making complex 3-D surfaces with 2-D sheets
Using liquid crystal elastomer, researchers are able to transform 2-dimensional rubber-like sheets into malleable, three-dimensional shapes, with a precise amount of control for various shape sequences.
Looking to the stars
This year's Simons Observatory Collaboration conference included a community star party that consisted of a panel, a mixer with astronomers, and stargazing.
Harnessing DNA tricks to boost nanosensors
Researchers have found a way to increase the sensitivity of graphene sensors using a trick of DNA engineering. The sensors might one day be used to monitor and treat HIV.
Earthquakes at the nanoscale
Scientists have gotten better at predicting where earthquakes will occur, but they’re still in the dark about when they will strike and how devastating they will be. Penn researchers hope to tackle this by investigating the laws of friction at the smallest possible scale, the nanoscale.
A topological phenomenon could light the path toward faster optical communications
A new study led by University of Pennsylvania physicist Bo Zhen investigated topological phenomena in open, or non-Hermitian, physical systems which could potentially lead to faster connection speeds in optical communications.
In the News
Scientists propose ‘missing’ law for the evolution of everything in the universe
Stuart Kauffman of the Perelman School of Medicine comments on a study that proposed a missing scientific law identifying “universal concepts of selection” that drive evolution.
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Russia aims to restore prestige in race to moon’s south pole
Benjamin L. Schmitt of the School of Arts & Sciences and the Weitzman School of Design says that sentiment in the scientific and astronaut communities has begun to shift toward a future in which NASA and Roscosmos are no longer close partners.
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Nine women who changed science are featured in a new Philly exhibit
A new exhibit at the American Philosophical Society in Philadelphia celebrates the late Mildred Cohn, a biochemist at the Perelman School of Medicine who fought to reduce discrimination in academia.
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Neuroscience explains why Bill Gates’ weird reading trick is so effective
A study by Penn researchers working in physics, neuroscience, and bioengineering found that people instinctively seek patterns and similarities in the data they absorb.
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UK joins international effort to uncover first moments of the universe
In a statement for the Simons Observatory, Mark Devlin of the School of Arts & Sciences says that new telescopes and researchers from the UK will make a significant addition to their efforts to examine the origins of the universe.
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Liquid crystals bring robotics to the microscale
In collaboration with the University of Ljubljana, Kathleen Stebe of the School of Engineering and Applied Science has built a swimming microrobot that paddles by rotating liquid crystal molecules.
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