Fermilab Colloquium Calendar Archive 2019

  Appropriate for physicists     Appropriate for all lab staff and members of the public
Raw date Event date Title Speakers Host Summary Links
20190102 Jan. 2, 2019 No colloquium
20190109 Jan. 9, 2019 Open
20190116 Jan. 16, 2019
In the Spirit of Collaboration: Renovating the North American Hall at The Field Museum
Alaka Wali, The Field Museum Chist Stoughton The Native American Hall at The Field Museum in Chicago is over 50 years old and in need of an update! It is now scientifically inaccurate, contains harmful stereotypes of Native Americans, and doesn’t represent best museum practice in the care of collections. In this talk, I will discuss how museum staff members are collaborating with Native American scholars, museum professionals and community members to renovate the hall and present a fresh perspective on Native American lifeways and histories. I will discuss new approaches to content and to conservation and collections care. I will also discuss the critical importance of drawing on traditional ecological and cultural expertise. Video
20190123 Jan. 23, 2019 Open
20190130 Jan. 30, 2019
Cancelled/rescheduled to February 27
20190206 Feb. 6, 2019
Robotic and autonomous technologies
Mario Di Castro, CERN Katsuya Yonehara Nowadays, intelligent robotic systems are becoming essential for industry and harsh environments, such as the CERN accelerator complex. Aiming to increase safety and machine availability, robots can help perform repetitive and dangerous tasks which humans either prefer to avoid or are unable to do because of hazards, size constraints or the extreme environments in which they take place, such as outer space or radioactive experimental areas. In this presentation, the current status the robotic systems applied at CERN is described. Several robotics solutions have been applied in the past years at CERN, as well as custom made robotic devices. New ideas and solution could come in the close future to increase safety of CERN personnel decreasing radiation dose taken. Current and future research and development in robotics are described, as well as the results from the commissioning of various novel robotic controls. Video
20190213 Feb. 13, 2019
Probing the Universe with Gravitational Waves
Barry Barish, Caltech and UC Riverside Dmitri Denisov The discovery of gravitational waves, predicted by Einstein in 1916, is now enabling important tests of the theory of general relativity, as well as beginning multi-messenger astronomy: the combined observations of astrophysical phenomena using electromagnetic radiation, gravitational waves and neutrinos. Plans and prospects for gravitational wave science will be explored. Barry is a 2017 Nobel Prize winner Video
20190220 Feb. 20, 2019 No colloquium
20190227 Feb. 27, 2019
Is the Electron Round: TeV Beyond Standard Model tests on a Tabletop
Gerald Gabrielse, Northwestern University Mike Albrow The standard model of particle physics is both the great triumph and the great frustration of modern physics. It can make predictions accurate to 1 part in 1012 for the electron magnetic moment, while being unable to explain basic features of the universe. The standard model predicts that the electron charge is not quite round, i.e. it has an electric dipole moment, but that this moment is far too small to measure. Most other models, like supersymmetry models, predict an electric dipole moment that is within experimental reach. The Advanced Cold Molecule EDM (ACME) Collaboration has just reported a new measurement of the electron electric dipole moment that has a sensitivity increased by an order of magnitude. Video
20190306 March 6, 2019
Physics of viruses
Roya Zandi, University of California Chris Stoughton Despite the proliferation of viruses in nature, the mechanisms by which hundreds or thousands of proteins assemble to form structures with icosahedral order (IO) is completely unknown. In this talk, I will discuss the results of our simulations of a minimal model and show that the mechanical properties of building blocks including the spontaneous curvature, flexibility and bending rigidity of coat proteins are sufficient to predict the size, symmetry and shape selectivity of the assembly products. Further, using continuum elasticity theory, I prove that as a spherical cap grows, there is a deep potential well at the locations of disclinations that later in the assembly process will become the vertices of an icosahedron, explaining at least in part, the error-free assembly of protein subunits into capsids with universal IO.
20190313 March 13, 2019
The Photometric LSST Astronomical Time Series Challenge (PLAsTiCC)
Renee Hlozek, University of Toronto Chris Stoughton The Photometric LSST Astronomical Time Series Classification Challenge (PLAsTiCC) was an open data challenge to classify simulated astronomical time-series data in preparation for observations from theLarge Synoptic Survey Telescope (LSST), which will achieve first light in 2019 and commence its 10-year main survey in 2022. LSST will revolutionize our understanding of the changing sky, discoveringand measuring millions of time-varying objects. In this challenge, we posed the question: how well can we classify objects in the sky that vary in brightness from simulated LSST time-series data, with all itschallenges of non-representativity? I will describe the PLAsTiCC challenge from conception, validation to delivery and highlight the results of the challenge, and discuss how this rich and complex simulationcan be used to better understand the transient sky. Video
20190320 March 20, 2019
3D Printing Functional Materials & Devices
Michael McAlpine, Chris Stoughton Chris Stoughton The ability to three-dimensionally interweave biological and functional materials could enable the creation of devices possessing unique and compelling geometries, properties, and functionalities. Indeed, interfacing active devices with biology in 3D could impact a variety of fields, including regenerative bioelectronics, smart prosthetics, biomedical devices, and human-machine interfaces. Our approach is to use extrusion-based multi-material 3D printing, which is an additive manufacturing technology that offers freeform, autonomous fabrication. This approach addresses the dichotomies presented above by (1) using 3D printing and imaging for personalized, multifunctional device architectures; (2) employing ‘nano-inks’ as an enabling route for introducing diverse material functionality; and (3) 3D printing a range of functional inks to enable the interweaving of a diverse palette of materials, from biological to electronic. 3D printing is a multiscale platform, allowing for the incorporation of functional nanoscale inks, the printing of microscale features, and ultimately the creation of macroscale devices. This blending of 3D printing, functional materials, and ‘living’ platforms may enable next-generation 3D printed devices, from a one-pot printer. Video
20190327 March 27, 2019
Fear, Distortion, and Denial. Does Science Still Matter in America Today?
Kenneth Miller, Brown University Chris Stoughton Public opinion in the world’s leading scientific nation continues to demonstrate a surprising unwillingness to embrace the scientific consensus on issues affecting the well being and prosperity of the country and the world. While it might seem logical to attribute the prevalence of anti-science attitudes to religious dogma or factual unawareness, the roots of this problem go far deeper, and relate to popular perceptions of science and scientists. I will consider multiple aspects of science denial, and suggest how the scientific enterprise and science education need to change to reclaim the cultural high ground in American society. video
20190403 April 3, 2019
Ten Thousand Pieces of Blue Sky: Building Towards the Complete Picture of Exoplanet Demographics
Jessie Christiansen, Caltech Chris Stoughton The NASA Kepler mission has provided its final planet candidate catalogue, the K2 mission has contributed another four years’ worth of data, and the NASA TESS mission has just started producing planet candidates of its own. The demographics of the exoplanet systems probed by these transiting exoplanet missions are complemented by the demographics probed by other techniques, including radial velocity, microlensing, and direct imaging. I will walk through the progress of the Kepler occurrence rate calculations, including some of the outstanding issues that are being tackled. I will demonstrate how K2 and TESS are able to push the stellar parameter space in which we can explore occurrence rates beyond that examined by Kepler, and progress to that end. Finally, I will highlight some of the pieces of the larger demographics puzzle - occurrence rate results from the other techniques that probe different stellar and exoplanet regimes - and how we can start joining those pieces together. video
20190410 April 10, 2019
Leon Lederman and his impact on science education
Christine Middleton, Physics Today Mike Albrow Leon Lederman is well-known as the former director of Fermilab and for his Nobel Prize winning work in high-energy physics. However, he also had a passion for science education. Leon recognized that American students were not graduating high school with a working knowledge of scientific ideas, and he took active steps toward improving the state of science education that are still impacting students today. He was a vocal advocate for the Physics First model of science education, which is increasingly being used in schools across the country. The three-year residential school he founded for gifted students, the Illinois Mathematics and Science Academy (IMSA), is still one of the top-ranking high schools in the country. Leon’s training program for teachers, the Teachers Academy for Math and Science (TAMS), serves as a model for science education reform today. These and other programs with which he was involved make up a robust legacy that continues to contribute to the educational community. Video
20190417 April 17, 2019
Digital art installations in museum exhibitions: “Along the River during the Qingming Festival” and the Cyrus Tang Hall of China
Deborah Bekken, Field Museum Chris Stoughton In June 2015, the Field Museum opened the Cyrus Tang Hall of China, a permanent exhibition that introduces visitors to more than 10,000 years of Chinese cultural history and features over 350 objects from the museum’s East and Southeast Asian collections. To help interpret this expansive subject, key themes and objects are given context by a suite of large-scale, custom-produced interactive media strategically integrated throughout the five-gallery, 9,000 square-foot space. As a coherent set of interactive media, the Cyrus Tang Hall of China offers visitors a user experience that is data-rich but not overpowering. This presentation will discuss the goals, development, prototyping, and evaluation of digital versions of art and artifacts within the Cyrus Tang Hall of China. Video