(1 of 4) The large-screen HELIX system, here deployed in Henry Leitner's Computer Science 1 class, makes it possible for an instructor to teach students who are physically present and see students attending class online, without being confined to a small computer screen at a fixed lectern location; the camera follows the professor and assures that he can be seen effectively by “roomies” and “Zoomies” in a hybrid course.
Courtesy Faculty of Arts and Sciences/ Office of Undergraduate Education
Findings suggest a lack of faith in Harvard’s administration
The use of mobile phone data (left) proved more accurate for estimating the spatial spread of dengue fever than a traditional diffusion model (right). Graphic from Impact of human mobility on the emergence of dengue epidemics in Pakistan, published by PNAS
A School of Public Health study uses cell-phone records to predict the spread of dengue fever.
Among the contributors (clockwise from top left): Ellen Chubin Epstein, Adam Fratto, Renee Covi, Steven Erlanger, Lina S. Scroggins, Lynda Cohen Loigman, Viet D. Dinh, and Susan D. Wojcicki Photographs provided by the subjects
Fossil river deltas on Mars, such as this one in Eberswalde Crater, bear many similarities to river deltas on Earth. Such features suggest that Mars once had flowing liquid water on the surface, motivating study of the planet’s early climate.
Photograph by NASA/JPL/Malin Space Science Systems