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Control the path and power of hurricanes like Milton? Forget it, scientists say
Associated Press

Control the path and power of hurricanes like Milton? Forget it, scientists say

Michael Mann of the School of Arts & Sciences says that simply discussing ethical guidelines for tinkering with Earth’s atmosphere will make it more likely to occur in the real world, which could have harmful side effects.

How is the world working to save biodiversity?
Three women sit at tables in front of an audience. A Zoom screen with three additional speakers is behind them.

Kathleeen Morrison, Fernanda Jiménez, and Julie Ellis present to the Penn community at CLALS. The program was also available to online participants; behind them, Carolina Angel Botero, Emilio Latorre, and Keith Russell present via Zoom.

nocred

How is the world working to save biodiversity?

A Sept. 18 panel hosted by the Environmental Innovations Initiative and the Center for Latin American and Latinx Studies discussed local and global initiatives.

Kristina García

A climate expert’s return to Penn
Portrait of Jen Wilcox

Jen Wilcox has returned to the Kleinman Center for Energy Policy at the Stuart Weitzman School of Design and to the School of Engineering and Applied Science following three years in at the U.S. Department of Energy, where she served in the Biden Administration as the principal deputy assistant secretary for the Office of Fossil Energy and Carbon Management.

(Image: Courtesy of Jen Wilcox)

A climate expert’s return to Penn

Jen Wilcox, an expert on direct-air capture, is the inaugural faculty appointment in the Kleinman Center and served for three years as principal deputy assistant secretary for the Office of Fossil Energy in the U.S. Department of Energy. She discusses her time away and her return to Penn.
Sound research as a lens to understanding the world
Illustration of a person wearing headphones with swirling whales and birds surrounding them.

Image: Maggie Chiang for OMNIA

Sound research as a lens to understanding the world

Researchers across Penn’s School of Arts & Sciences are turning to sound for new answers to questions on subjects from birdsong to the benefits of music exposure.

Laura Dattaro

Does heat travel differently in tight spaces?
Green-tinted image showing thermal plumes in a Hele-Shaw cell, illustrating heat transfer in confined spaces.

Hugo Ulloa and Daisuke Noto of the School of Arts & Sciences have unearthed findings that address long-standing mysteries in the mechanics of fluids in confined, tight spaces: how their boundaries affect heat as it emanates from one place and dissipates throughout the space. The image above is a lab-scale hydrothermal system modeled utilizing a Hele-Shaw cell of 10 cm tall, 20 cm long and 4 mm gap. The interior of the Hele-Shaw cell is filled with degassed, deionized water heated from the bottom and cooled from above. A green laser sheet crosses the middle plane of the cell to visualize the motions of micro-scale particles seeded on the water, allowing researchers to estimate the fluid velocity and temperature.

 

 

(Image: Courtesy of Daisuke Noto)

Does heat travel differently in tight spaces?

New research led by Penn scientists offers insights into fundamental problems in fluid mechanics, findings that pave the way for more efficient heat transfer in myriad systems.