2025
Friday, March 14, 2025 Brody Lab - Hegeman 107 12:00 pm EDT/GMT-4 Geothermal systems (aka: ground-source heat exchange) utilize the renewable thermal energy below the Earth’s surface to provide heating and cooling in buildings. Bard College has been a leader and early adopter of geothermal, with systems on campus dating to the late 1980s. Nearly 50% of the Main Campus building area (ft2) uses geothermal technology, and there are over 630 geo-wells across campus, hidden beneath our feet. This discussion provides an overview of geothermal on the Bard campus, and an introduction to the physics and components at the heart of ground-source heat exchange, including heat pump systems and the refrigeration process. |
Friday, March 7, 2025 A talk by Andrew Zwicker, Senator, 16th Legislative District Brody Lab - Hegeman 107 12:00 pm EST/GMT-5 What role should scientists play in public policy? Do we have any more of an obligation than others to participate in the political process? While technical issues are clearly within the natural purview of a scientist, is a science background equally as valuable in dealing with the economy or education? These are some of the questions this talk will raise, including lessons learned from Zwicker's personal career trajectory to highlight his perspective on the intersection of science and public policy. |
Friday, February 28, 2025 Brody Lab - Hegeman 107 12:00 pm EST/GMT-5 A variety of techniques can be used to investigate molecular dynamics on ultrafast timescales, and most of these are relatively novel techniques. Currently, most of the techniques employed are spectroscopic techniques, which only provide information about the energetic transitions within a system. In contrast, scattering techniques can provide additional information by instead directly probing the structural dynamics over time. The ability to examine molecular structures and monitor their structural changes on femtosecond timescales is particularly useful, because it can provide information such as the structural pathways that chemical reactions pass through, which was previously not possible to obtain through experimental means. This talk will provide a survey of the ultrafast techniques employed by our group in order to create more comprehensive understandings of molecular structural dynamics on reaction timescales. |
Friday, February 21, 2025 Brody Lab - Hegeman 107 12:00 pm EST/GMT-5 Diamonds, thought to form in the upper mantle and the mantle transition zone (410–660 km) often incorporate small pieces of surrounding material when they form. These inclusions provide a unique window into the deep mantle, giving researchers much-needed information about the composition of our planet as well as processes which took places millions and billions of years ago. Dr. Kiseeva will give an overview of deep diamonds and their inclusions: how these diamonds form, what minerals they bring, what they tell us about the composition of the deep mantle, and how they relate to the deep carbon cycle. Kate joined the American Museum of Natural History in November 2023, moving from an academic background. Prior to that sheworked as a Senior Lecturer in Geochemistry at the University College Cork (UCC), Ireland. In 2012 she received her PhD in experimental petrology from the Australian National University, Canberra, Australia. Kate’s main research interests include the deep carbon cycle, metasomatism in the cratonic mantle, distribution of trace elements during mantle melting, and oxidation state of the mantle transition zone. |