Old artworks are often very dirty and there are many examples of art being damaged by sloppy restoration. Here are 2 ways art can be restored: Physicists have applied the same laser techniques commonly used for tattoo removal to clean several famous works of art, including wall paintings. “It’s a very effective method. If you [...]
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BTEC Science classes have a module on activation energy, and this crops up in GCSE too. This is the minimum energy required for a reaction to start. This blog link shows a dramatic example of how to give a chemical the required energy to react. In this case three matches that are made to burn [...]
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How has the natural world affected the development of human civilisation? Particularly relevant is plate tectonics (explained in episode 1). http://www.bbc.co.uk/programmes/b00qclqx
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Series in which Jim Al-Khalili traces the story of how the elements, the building blocks that make up our entire world, were discovered and mapped. From alchemy to the Periodic Table to nuclear power: http://www.bbc.co.uk/programmes/b00qbq7f (no longer available on iPlayer, you can find it on rapidshare or see Mr Turner to borrow a DVD)
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