# Studying energy dissipation

A project log for linear actuations for everyone!

cheap artificial pseudo-muscles here

I advise reading previous update ("Bye, DC!"), it's a crucial part - it contains important ideas about power & energy in electric circuits, revealing phenomenon of inductance and resistance on a new level - now it's my instrument of choice for working with electromagnetic processes.

Hello everyone! Again : )
Previously, I described a proportion, in which power allocates between charging electromagnetic field and heating a conductor and it was a bit of a shock for me, originally I wondered, how we can eliminate heat dissipation completely. Now it seems impossible? Not quite!

I see two ways, how to come round that heating misconception:
1) We can develop a new sort of electromagnets! If we assume, that proper distribution of charge in space (and not specifically in a conductor) creates a magnetic field, that means, that we can recreate it similarly to a capacitor. It would be a charge-dependant electromagnet, which can store electromagnetic energy as long, as charges present in it. In a traditional coil waste of power dictated by a unstable state of charges, covering a conductor - you need to apply external "force" to prevent "positive and negative charges" from collapsing, that's why applying voltage is an essential thing there. However, I failed to notice any sort of a magnetic field around flat capacitor. It doesn't mean, that it's 100% not there - it's probable, that Earth's magnetic field outruns weak field of a capacitor - it requires more studying. If I would get an idea how to make such a thing - I would share it here. It would be epic, if it's possible ; )
2) We can exploit an interesting behaviour of a traditional coils. More on that in next part:

Exploiting physics:
Even an energy dissipation law has it's own backdoor! And this backdoor is a fact, that if you apply no power to a conductor and retrieve most of energy, that it gives to you, it's not likely to dissipate something into the air. Current might stay the same, who cares!