Hydrogen is considered by many as the fuel for the future. It is clean, inexpensive and plentiful. However, it is very dangerous to store. Now, scientists at the Massachusetts Institute of Technology have 'canned' hydrogen inside carbon nanotubes (as small as one millionth of a millimetre), increasing the capacity of storing hydrogen as well making storage possible at room temperature to make it useful. When the packing pressure on the nanotubes is relaxed, the hydrogen comes shooting out ( Science , Vol 286, No 5442).
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