Got a bit of downtime? Take a trip to a national park from wherever you are! Many national park sites across the country offer digital tours and experiences that you can access anytime, anywhere. From digitally diving under the sea to watching the cherry blossom trees bloom, there are countless ways to enjoy a park experience online.
Watch Paterson 2016 Online
Here, we present five publicly-available online labs designed for undergraduate instructors and students. Within these labs students learn about fundamental concepts, such as how scientists conduct research and by what means authentic tree-ring data can be used, for example, to learn about temperature variability of the past two thousand years in the Northern Hemisphere (Wilson et al. 2016), to place exact calendar dates on ancestral pueblos in the U.S. Southwest (Douglass 1929), and to reconstruct streamflow estimates for the U.S. Colorado River (Woodhouse and Lucas 2006). In addition to being able to virtually explore tree-ring field sites, students can measure and evaluate tree-ring data, and use visualization tools to explore time-series in more detail.
In Lab 5, students virtually explore some of the remote tree-ring sites scientists have sampled to develop a better understanding of warming in the northern latitudes over the past millennium. Students evaluate publicly-available tree-ring datasets from the ITRDB and research related peer-review publications in Google Scholar. They evaluate an interactive Northern Hemisphere temperature reconstruction (Wilson et al. 2016), based in-part on tree-ring records from the virtual sites that they have been asked to explore. They evaluate and measure tree-ring data from three sites and learn how scientists combine samples from living and dead trees to create very long records (Figure 2). Students are asked to research online for a potential cause for some of the extremely narrow rings (cold years) that they have identified (i.e. large-scale volcanic eruptions).
In the past few years, the Islamic State has exhorted followers online to use vehicles, knives or other close-at-hand means of killing people in their home countries. England, France and Germany have all seen deadly vehicle attacks since mid-2016.
A November 2016 issue of the group's online magazine detailed features that an attack truck or van should have, suggested renting such a vehicle, and recommended targeting crowded streets and outdoor gatherings, according to the SITE Intelligence Group, a militant-monitoring agency. 2ff7e9595c
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