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Who had more fun in life, Albert Einstein or Richard Feynman? Whichever one of them was travelling faster...Find out about The Open University's Natural Sciences courses. Transcript Read Andrew Norton on the framework of special relativity and examples of measured time dilation and length contraction Discover how you can study physics and astronomy with The Open University

...Open University's Glynda Easterbrook and fellow geologist Tony Lee as they visit Northern Ireland to look at some amazing rock forms and some fascinating successions of different depositional environments. This material forms part of The Open University course S260 Geology... Rocks in the field Intro to album, as per album description. Giant's Causeway The Open...

...is the point of no return? German physicist, Karl Schwarzchild calculated the event horizon of black holes. And it can tell us more about the eventual fate of all the galaxies...Find out more about The Open University's Natural Sciences courses. Transcript Read Stephen Serjeant on the speed of light Discover how you can study physics and astronomy with The Open University...

...how Einstein was right all along about the expanding Universe. We never should have doubted him...Find out more about The Open University's Natural Sciences courses. Transcript Read Stephen Serjeant on what it means to equate the curvature of the Universe with the amount of stuff in the Universe Discover how you can study physics and astronomy with The Open University...

...open to the public as a show cave with impressive stalactites and stalagmites and an underground lake. Other caves are only accessible with specialist equipment and experience, though guided access is available. On the surface, streams emerge and abruptly disappear underground into swallow holes. Their valleys, formed when the ground was frozen during the last Ice Age...