One of my biggest passions is electronics, I like to design and realize small electronic devices, mostly useless and/or cumbersome though...

Although I work in a rather different field (IT - Networks) I still like to play around whith those cute little bits and bobs and I like to put them together in such a way that they actually do something; I feel a sense of awe when I look into any appliance and see that twist of plastic, wires, and silicon, all working together, "dancing" together, in such a way that out of that dance you can listen to your favourite music or watch your favourite movie.

Often I found myself to compare electronics whith idrodynamics, and as a matter of fact they are quite analogous from a physical point of view; water, as mass within a gravitational field, compares to charge carriers in an electric field; as water flows from the mountains (high potential) to the sea (low potential) so do charge "flows" from high to low potential, and just wonderful here is to see the example of hydroelectric power where you can actually exploit this "equivalence". In brief this turns the mechanical energy of falling water into electrical energy, of course there is always a price to pay so you never end up getting out 100% of the incoming (mechanical) energy, but as long as water flows...