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The Bristol Dinosaur Team visits your neighbourhood
An amazing team of volunteers routinely visit schools, shopping malls, science centers and festivals around the city of Bristol to tell you more about our very own dinosaur! Most recently they were spotted at Science Alive, a celebration of National Science Week at the Galleries in Broadmead on 19 th and 20 th March. Visitors had the opportunity to learn about our local dinosaur, touch real dinosaur bones, watch videos, and they even made replicas to take home! The event offered a range of hands-on exhibits, activities and displays. The enthusiasm and interest shown by children and adults alike made this a fantastic event to be involved in and a great opportunity for people to learn a little about science. Over 1,000 adults and children visited during the two days which resulted in some happy but exhausted staff and volunteers:) Browse through the impressive list of past events the Bristol Dinosaur Team have been involved in and click here to find out where they are headed to next.
The first Thecodontosaurus bones were found in Bristol in 1834. But the site has now been built over, and nothing more can be found there (unless we can knock down the houses, and their owners aren't too keen about that). In 1975, an amazing new discovery was made - five tonnes of rock stuffed full of Thecodontosaurus bones. They came from a quarry near Bristol, and the quarry owners kindly transported the huge boulders, some of them a metre cubed, back to the University.
Remmert's first job was to bring the blocks inside the lab. They were too huge to carry or bring in through the door, so he had to smash them up with a huge hammer. He did this carefully, trying not to damage any of the precious bones. Eventually, after months of work, the blocks were reduced to smaller-sized blocks, and they came inside. The next step was to get the bones out of the rock. First, Remmert tried acid treatment. Palaeontologists can use weak acetic acid (= vinegar) to dissolve limestone off bones. Unfortunately, there was not enough limestone in the rock matrix to allow this technique to work. So he had to use physical methods - drills and airpens. The drills are just like dental drills, and they allow the preparator to remove small chips of rock from the bones. The airpen is a narrow tube through which air is blasted at very high pressure. Small beads of polystyrene, and other substances, can be included, and they gently batter the rock off the bone, and cause minimal damage. Every week, new bones are extracted from the rock by Remmert and his team, and in another two or three years, all the bones will be out. All content is copyright © 2005-2006 Department of Earth Sciences, University of Bristol. Design by ParanoidFish Website & Graphic Design and EikonWorks. |
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