296 results found displaying 31-33
    
mtrobregado
 Philippines
Adjustable Cup or Mug Printer Friendly Version
There are all sizes of containers for drinking. My idea is a cup that can be adjusted (lengthened and retracted).

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32°

    
mtrobregado
 Philippines
Recycling paper as alternative to charcoal Printer Friendly Version
Paper comes from wood and charcoal is derived from wood. My idea is to recycle used papers, such as newspapers and old documents, to become an alternative for charcoal. The procedure would be to soak several used papers in water for some time. Then compact them using hands or other means to reasonable sizes. Then let them dry. You can now use them as an alternative for charcoal. It may function differently than charcoal but it will work.

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13°

    
JestBlaze
 USA
Electric Power Gutters Printer Friendly Version
This plastic replacement downspout would feature small directional water wheels in the gutter and small generators wired together with weather proof wiring on the outside of the downspout. The most electricity would be produced if each descending waterwheel was only allowed to spin in the opposite direction the wheel above it would spin. The generators would have alternating polarity in their generating magnets to create a DC current. This would save an unknown amount on your electric bill, depending on how much it rains. The top of the gutter would need a guard to stop leaves and other debris from entering.
Reward: Installation on a moderate house of my choice. 

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40°

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