Arguments for a "U.S. Kamioka": SNOLab and its Implications for North American Underground Science Planning

We argue for a cost-effective, long-term North American underground science strategy based on partnership with Canada and initial construction of a modest U.S. Stage I laboratory designed to complement SNOLab. We show, by reviewing the requirements of detectors now in the R&D phase, that SNOLab and a properly designed U.S. Stage I facility would be capable of meeting the needs of North America's next wave of underground experiments. We discuss one opportunity for creating a Stage I laboratory, the Pioneer tunnel in Washington State, a site that could be developed to provide dedicated, clean, horizontal access. This unused tunnel, part of the deepest (1040 m) tunnel system in the U.S., would allow the U.S. to establish, at low risk and low cost, a laboratory at a depth (2.12 km.w.e., or kilometers of water equivalent) quite similar to that of the Japanese laboratory Kamioka (2.04 km.w.e.). We describe studies of cosmic ray attenuation important to properly locating such a laboratory, and the tunnel improvements that would be required to produce an optimal Stage I facility. We also discuss possibilities for far-future Stage II (3.62 km.w.e.) and Stage III (5.00 km.w.e.) developments at the Pioneer tunnel, should future North American needs for deep space exceed that available at SNOLab.Comment: 23 pages, 10 figures; revised version includes discusion about neutrino-factory magic baseline

Podologues: Conversations created by science podcasts

Podcasts are media files that can be automatically aggregated and downloaded via the internet, and transferred to portable media players. Combined with online discussion facilities, podcasts represent flexible and potentially valuable tools for communicating about science. This pilot project aimed to assess the role of science podcasts in stimulating discussions, or 'podologues', about science through detailed analyses of a sample of five popular science podcasts. Two main methods were used: content analysis of online discussion forums and blogs associated with the five podcasts and interviews with listeners. The results show that podcasts are regarded as valuable sources of scientific information by listeners and that blogs and forums can act as public spaces for audience members to share knowledge, develop their own ideas about science and provide feedback to media producers. Larger, more detailed studies are required to further understand the value of podcasts for stimulating public discourse about science. © The Author(s) 2010