Oh, I didn't meant it that way. Here it is a replacement for electricity and their ingenuity is quite intricate. On the contrary, they put up quite a bar that h

Oh, I didn't meant it that way. Here it is a replacement for electricity and their ingenuity is quite intricate. On the contrary, they put up quite a bar that has to be matched by those calling them backwards. Aside from that pressured air has quite a lot of applications. Some high tech robots use pneumatics instead of hydraulics or gas for certain applications. It is not at all a deprecated technology, the principle is more or less the same. It is also 100% more ecological if you use the air pump to power your devices.