A powerful telescope you can build at home

A team from the London-based Open Space Agency (OSA) has produced the Ultrascope, a downloadable telescope design that can be generated by a 3D .\r
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Amateur telescope maker Sean Cunneen demonstrates how to make a refracting telescope at home with readily available parts. Follow the build so that you can .\r
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Launched December 21, 2011 to celebrate the Winter Solstice. Learn how to make your very own telescope, step-by-step, using everyday materials. To further .\r
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This video allows you to make an astronomical telescope at home at nominal cost.