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A small fan-blade assembly which clips to the end of a loo
roll. When the loo roll is turned, the 'air-brake' effect
moderates the turning motion of the loo roll, preventing it
turning spontaneously due to the gravitational pull of any
accidentally unravelled loo roll. The breeze generated by
this
fan also blows post-defecatory odours away.
[link]
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Shouldn't you use this to generate electricity as well? |
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There is scope here to apply custard as a fluid flywheel speed governor. |
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