SteveDeFacto

I want to build a toy quadcopter but with a 1w fuel cell. I'm hoping it will last hours instead of minutes. I've found reasonably priced 1w fuel cells that are light enough but I can't find any small 700 bar tanks to hold the hydrogen and oxygen. Anyone know where I can find small tanks that can hold such great pressures?

For some reason I've been pondering the idea of building a real life iron man suit. Obviously to build such a suit would require a lot of power. The mega powered lasers weapons and ion thrusters would require anti matter for power which is entirely impractical so we will have to drop those. I was thinking a 1kW hydrogen fuel cell with tanks of hydrogen compressed to 700 bar(Not sure if those tanks will work) should be enough power. To animate the exoskeleton I was thinking air muscles with 3 times the lifting power of a human's muscles would be a reasonably achievable feat but I'm not sure how much psi would be required or what materials to use for the air muscles. Then in the helmet I was thinking something like the Wrap 1200VR. Then maybe something like DragonsSkin for body armor and maybe a titanium steel shell. Probably could never afford to build something like this but it's cool to think about. What do you guys think?