Quantum Interference: From Kaons to Neutrinos (with Quantum Beats in between)

Using the vehicle of resolving an apparent paradox, a discussion of quantum interference is presented. The understanding of a number of different physical phenomena can be unified, in this context. These range from the neutral kaon system to massive neutrinos, not to mention quantum beats, Rydberg wave packets, and neutron gravity.Comment: 12 pages, LaTeX, 3 figure

Encouraging Initiative in the Classroom with Anonymous Feedback

Abstract. Inspiring and maintaining student participation in large classes can be a difficult task. Students benefit from an active experience as it helps them better understand the course material. However, it’s easy to stay silent. Opportunities to participate in conversation allow students to question and learn. The Fragmented Social Mirror (FSM) provides students with the ability to anonymously initiate classroom dialog with the lecturer. The system encourages participation by enabling expressive anonymous feedback to reduce evaluation anxiety. The FSM further catalyzes participation by allowing for many simultaneous participants. In this paper, we introduce the FSM as a classroom device, discuss its design, and describe a pilot test of the interface. Initial results indicate a promising direction for future feedback systems