Hi Tim Martin, Thanks for the great video and images of the drilling and core samples. We just linked up with your site during my igneous rock talk today. The students loved seeing the samples and we leave tomorrow for our trip to Pliot Mt and Vulcan quarry where they will be able to take hard rock core samlples home. I can't wait to see the live broadcast, but we don't know whether the GDS server will allow so many of us on at once. I think the IT department is working on it. Thanks for all the great info and images. Cindy Rayburn 4th grade at GDS