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Magnetic kitchen towel hanger
Getting Started with Electronics
A Curtain of Light
He will not be able to destroy (or charge) any lithium battery with this reverse fan. You might get a certain open-circuit voltage out of a "generator" like this, but there is no way it will deliver any significant amount of power (current times voltage).You have just to compare a high quality hub dynamo which delivers 2.4 W with this fan - you cannot turn a wheel attached to such a dynamo by just blowing, yet riding along you don't notice the extra resistance. What happens with the fan if you actually try to extract power is that it will simply not rotate anymore...
if - only if! - this wind turbine would be anywhere close to producing 2-3 W of electric power (which could charge a smartphone in a mere 3 hours) it would produce at least a comparable drag on the bicycle. Just imagine it dangling on one side of the handle as in the photos ;)
Remote controlled LED ribbon
Wow .... this is amazing, if not a little daunting for someone such as myself with little to no electrical knowledge. I am thinking of giving this a try though. It really stoked my imagination of what you can do. Thanks!
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